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Sugiura Y, Matsuura Y, Katsuzaki H, Kakinuma M, Amano H, Usui M, Tanaka R, Matsushita T, Miyata M. The Immunomodulating Effect of Phlorotannins from a Brown Alga, Eisenia nipponica, on Mice Stimulated with Ovalbumin through T Cell Regulation. Plant Foods Hum Nutr 2022; 77:307-316. [PMID: 35633415 DOI: 10.1007/s11130-022-00974-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
The immunomodulating effect of phlorotannin was investigated in mice stimulated by ovalbumin. When analyzing the main components of phlorotannin concentrate (PTC) from Eisenia nipponica, seven phlorotannins [eckol, 6,6'-bieckol, 6,8'-bieckol, 8,8'-bieckol, dieckol, phlorofucofuroeckol (PFF)-A, and PFF-B] were detected. These phlorotannins accounted for approximately 80% of PTC. Oral administration of PTC to mice daily for 21 days reduced serum immunoglobulin E (IgE) and total IgG1 levels attributable to Th2 cells. The production of splenic cytokines [interleukin (IL)-10 and transforming growth factor-β1] and Treg cell-mediated expression of forkhead box protein P3 mRNA were significantly increased whereas the production of inflammatory cytokines (interferon-γ, IL-4, IL-5, and IL-17) by Th1, Th2, and Th17 cells was markedly suppressed. IL-21 production and basic leucine zipper ATF-like transcription factor mRNA expression attributable to follicular helper T (Tfh) cells were also suppressed. Flow cytometric analyses demonstrated increased number of Treg cells despite a decrease in the total T cell population. An increase in total B cells was also observed by the flow cytometric analyses in addition to increases in IL-10 production, which activates B cells. In contrast, the significantly suppressed production of inflammatory cytokines and moderate increase in Treg cell subpopulation indicated a direct impact of PTC on inflammatory lymphocytes (Th1, Th2, Th17, and Tfh). Thus, PTC may exert antiallergic effects by immunomodulation of T cells and inactivation of inflammatory lymphocyte.
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Affiliation(s)
- Yoshimasa Sugiura
- Department of Food Science and Technology, National Research and Development Agency, Japan Fisheries Research and Education Agency, National Fisheries University, Shimonoseki, Yamaguchi, Japan.
| | - Yuta Matsuura
- Research Center for Fish Diseases, National Research Institute of Aquaculture, Minami-ise, Mie, Japan
| | | | - Makoto Kakinuma
- Graduate School of Bioresources, Mie University, Tsu, Mie, Japan
| | - Hideomi Amano
- Graduate School of Bioresources, Mie University, Tsu, Mie, Japan
| | - Masakatsu Usui
- Department of Food Science and Technology, National Research and Development Agency, Japan Fisheries Research and Education Agency, National Fisheries University, Shimonoseki, Yamaguchi, Japan
| | - Ryusuke Tanaka
- Department of Food Science and Technology, National Research and Development Agency, Japan Fisheries Research and Education Agency, National Fisheries University, Shimonoseki, Yamaguchi, Japan
| | - Teruo Matsushita
- Department of Food Science and Technology, National Research and Development Agency, Japan Fisheries Research and Education Agency, National Fisheries University, Shimonoseki, Yamaguchi, Japan
| | - Masaaki Miyata
- Department of Food Science and Technology, National Research and Development Agency, Japan Fisheries Research and Education Agency, National Fisheries University, Shimonoseki, Yamaguchi, Japan
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Matsuura T, Sato Y, Nishino Y, Komurasaki T, Imamura Y, Kakinuma M. Development of Manufacturing Processes for the Carboxylic Acid Key Intermediate of Lusutrombopag: One-Pot Reaction Process of Formylation and the Horner–Wadsworth–Emmons Reaction. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takaharu Matsuura
- API R&D Laboratory, CMC R&D Division, Shionogi and Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Yusuke Sato
- Production Technology Department, Shionogi Pharma Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Yutaka Nishino
- Production Technology Department, Shionogi Pharma Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Tadafumi Komurasaki
- Corporate Strategy Division, Shionogi and Co., Ltd., 2F, Nissay Yodoyabashi East, 3-13, Imabashi 3-chome, Chuo-ku, Osaka 541-0042, Japan
| | - Yoshiaki Imamura
- Analytical R&D Laboratory, CMC R&D Division, Shionogi and Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Makoto Kakinuma
- Production Technology Department, Shionogi Pharma Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
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Kakinuma M, Yasumoto K, Suzuki M, Kasugai C, Koide M, Mitani K, Shidoji K, Kinoshita S, Hattori F, Maeyama K, Awaji M, Nagai K, Watabe S. Trivalent Iron Is Responsible for the Yellow Color Development in the Nacre of Akoya Pearl Oyster Shells. Mar Biotechnol (NY) 2020; 22:19-30. [PMID: 31728706 DOI: 10.1007/s10126-019-09927-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 10/14/2019] [Indexed: 06/10/2023]
Abstract
The gold and cream colors of cultured Akoya pearls, as well as natural yellow nacre of pearl oyster shells, are thought to arise from intrinsic yellow pigments. While the isolation of the yellow pigments has been attempted using a large amount of gold pearls, the substance concerned is still unknown. We report here on the purification and characterization of yellow pigments from the nacre of Akoya pearl oyster shells. Two yellow components, YC1 and YC2, were isolated from the HCl-methanol (HCl-MeOH) extract from nacreous organic matrices obtained by decalcification of the shells with ethylenediaminetetraacetic acid (EDTA). Energy-dispersive X-ray and infrared spectroscopy analyses suggested that YC1 and YC2 precipitated under basic conditions are composed of Fe-containing inorganic and polyamide-containing organic compounds, respectively. YC1 solubilized under acidic conditions exhibited positive reactions to KSCN and K4[Fe(CN)6] reagents, showing the same ultraviolet-visible absorption spectrum as those of Fe(III)-containing compounds. In addition, X-ray absorption fine structure analysis supported the compound in the form of Fe(III). The total amount of Fe was approximately 2.6 times higher in the yellow than white nacre, and most Fe was fractionated into the EDTA-decalcifying and HCl-MeOH extracts. These results suggest that Fe(III) coordinated to EDTA-soluble and insoluble matrix compounds are mainly associated with yellow color development not only in the Akoya pearl oyster shells but also in the cultured Akoya pearls.
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Affiliation(s)
- Makoto Kakinuma
- Graduate School of Bioresources, Mie University, 1577 Kurima-machiya, Tsu, Mie, 514-8507, Japan.
| | - Ko Yasumoto
- School of Marine Biosciences, Kitasato University, 1-15-1 Kitasato, Minami, Sagamihara, Kanagawa, 252-0373, Japan
| | - Michio Suzuki
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo, 113-8657, Japan
| | - Chiaki Kasugai
- Graduate School of Bioresources, Mie University, 1577 Kurima-machiya, Tsu, Mie, 514-8507, Japan
| | - Mirai Koide
- Graduate School of Bioresources, Mie University, 1577 Kurima-machiya, Tsu, Mie, 514-8507, Japan
| | - Kayo Mitani
- Graduate School of Bioresources, Mie University, 1577 Kurima-machiya, Tsu, Mie, 514-8507, Japan
| | - Kaho Shidoji
- School of Marine Biosciences, Kitasato University, 1-15-1 Kitasato, Minami, Sagamihara, Kanagawa, 252-0373, Japan
| | - Shigeharu Kinoshita
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo, 113-8657, Japan
| | - Fumihiro Hattori
- Research and Development Department, Mikimoto Pharmaceutical Co., Ltd., 1425 Kurose, Ise, Mie, 516-8581, Japan
| | - Kaoru Maeyama
- Research and Development Department, Mikimoto Pharmaceutical Co., Ltd., 1425 Kurose, Ise, Mie, 516-8581, Japan
| | - Masahiko Awaji
- National Research Institute of Aquaculture, Japan Fisheries Research and Education Agency, 422-1 Nakatsuhamaura, Minami-ise, Mie, 516-0193, Japan
| | - Kiyohito Nagai
- Pearl Research Laboratory, Mikimoto Co., Ltd., 923 Hazako-osaki, Hamajima, Shima, Mie, 517-0403, Japan
| | - Shugo Watabe
- School of Marine Biosciences, Kitasato University, 1-15-1 Kitasato, Minami, Sagamihara, Kanagawa, 252-0373, Japan
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Shinohara M, Kinoshita S, Tang E, Funabara D, Kakinuma M, Maeyama K, Nagai K, Awaji M, Watabe S, Asakawa S. Comparison of Two Pearl Sacs Formed in the Same Recipient Oyster with Different Genetic Background Involved in Yellow Pigmentation in Pinctada fucata. Mar Biotechnol (NY) 2018; 20:594-602. [PMID: 29846830 DOI: 10.1007/s10126-018-9830-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/26/2018] [Indexed: 06/08/2023]
Abstract
Color is one of the most important factors determining the commercial value of pearls. Pinctada fucata is a well-known pearl oyster producing high-quality Akoya pearls. Phenotypic variation in amount of yellow pigmentation produces white and yellowish pearls. It has been reported that polymorphism of yellow pigmentation of Akoya pearls is genetically regulated, but the responsible gene(s) has remained unknown. Here, we prepared pearl sac pairs formed in the same recipient oyster but coming from donor oysters that differ in their color. These two pearl sacs produced pearls with different yellowness even in the same recipient oyster. Yellow tone of produced pearls was consistent with shell nacre color of donor oysters from which mantle grafts were prepared, indicating that donor oysters strongly contribute to the yellow coloration of Akoya pearls. We also conducted comparative RNA-seq analysis and retrieved several candidate genes involved in the pearl coloration. Whole gene expression patterns of pair sacs were not grouped by pearl color they produced, but grouped by recipient oysters in which they were grown, suggesting that the number of genes involved in the yellow coloration is quite small, and that recipient oyster affects gene expression of the majority of genes in the pearl sac.
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Affiliation(s)
- Mikihiro Shinohara
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo, 113-8657, Japan
| | - Shigeharu Kinoshita
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo, 113-8657, Japan.
| | - Enkong Tang
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo, 113-8657, Japan
| | - Daisuke Funabara
- Graduate School of Bioresources, Mie University, Kurimamachiya 1577, Tsu, Mie, 514-8507, Japan
| | - Makoto Kakinuma
- Graduate School of Bioresources, Mie University, Kurimamachiya 1577, Tsu, Mie, 514-8507, Japan
| | - Kaoru Maeyama
- Mikimoto Pharmaceutical CO., LTD., Kurose 1425, Ise, Mie, 516-8581, Japan
| | - Kiyohito Nagai
- Pearl Research Laboratory, K. MIKIMOTO & CO., LTD., Osaki Hazako 923, Hamajima, Shima, Mie, 517-0403, Japan
| | - Masahiko Awaji
- Japan Fisheries Research and Education Agency, National Research Institute of Aquaculture, Minami-Ise, Watarai, Mie, 516-0193, Japan
| | - Shugo Watabe
- School of Marine Biosciences, Kitasato University, Minami, Sagamihara, Kanagawa, 252-0313, Japan
| | - Shuichi Asakawa
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo, 113-8657, Japan
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Sugiura Y, Usui M, Katsuzaki H, Imai K, Kakinuma M, Amano H, Miyata M. Orally Administered Phlorotannins from Eisenia arborea Suppress Chemical Mediator Release and Cyclooxygenase-2 Signaling to Alleviate Mouse Ear Swelling. Mar Drugs 2018; 16:E267. [PMID: 30072652 PMCID: PMC6117712 DOI: 10.3390/md16080267] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 07/21/2018] [Accepted: 07/28/2018] [Indexed: 01/29/2023] Open
Abstract
Phlorotannin is the collective term for polyphenols derived from brown algae belonging to the genera Ascopyllum, Ecklonia, Eisenia, Fucus and Sargassum etc. Since the incidence of allergies is currently increasing in the world, there is a focus on phlorotannins having anti-allergic and anti-inflammatory effects. In this study, six purified phlorotannins (eckol; 6,6'-bieckol; 6,8'-bieckol; 8,8'-bieckol; phlorofucofuroeckol (PFF)-A and PFF-B) from Eisenia arborea, orally administered to mice, were examined for their suppression effects on ear swelling. In considering the suppression, we also examined whether the phlorotannins suppressed release of chemical mediators (histamine, leukotriene B₄ and prostaglandin E₂), and mRNA expression and/or the activity of cyclooxygenase-2 (COX-2), using RBL-2H3 cells, a cultured mast cell model. Results showed that the phlorotnannins exhibited suppression effects in all experiments, with 6,8'-bieckol, 8,8'-bieckol and PFF-A showing the strongest of these effects. In conclusion, orally administered phlorotannins suppress mouse ear swelling, and this mechanism apparently involves suppression of chemical mediator release and COX-2 mRNA expression or activity. This is the first report of the anti-allergic effects of the orally administered purified phlorotannins in vivo. Phlorotannins show potential for use in functional foods or drugs.
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Affiliation(s)
- Yoshimasa Sugiura
- Laboratory of Food Function and Biochemistry, Department of Food Science and Technology, National Research and Development Agency, Japan Fisheries Research and Education Agency, National Fisheries University, Shimonoseki 759-6595, Japan.
| | - Masakatsu Usui
- Laboratory of Food Function and Biochemistry, Department of Food Science and Technology, National Research and Development Agency, Japan Fisheries Research and Education Agency, National Fisheries University, Shimonoseki 759-6595, Japan.
| | - Hirotaka Katsuzaki
- Laboratory of Bioorganic Chemistry, Graduate School of Bioresources, Mie University, Tsu 514-8507, Japan.
| | - Kunio Imai
- Laboratory of Bioorganic Chemistry, Graduate School of Bioresources, Mie University, Tsu 514-8507, Japan.
| | - Makoto Kakinuma
- Laboratory of Marine Biochemistry, Graduate School of Bioresources, Mie University, Tsu 514-8507, Japan.
| | - Hideomi Amano
- Laboratory of Marine Biochemistry, Graduate School of Bioresources, Mie University, Tsu 514-8507, Japan.
| | - Masaaki Miyata
- Laboratory of Food Function and Biochemistry, Department of Food Science and Technology, National Research and Development Agency, Japan Fisheries Research and Education Agency, National Fisheries University, Shimonoseki 759-6595, Japan.
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Kakinuma M, Nakamoto C, Kishi K, Coury DA, Amano H. Isolation and functional characterization of an ammonium transporter gene, PyAMT1, related to nitrogen assimilation in the marine macroalga Pyropia yezoensis (Rhodophyta). Mar Environ Res 2017; 128:76-87. [PMID: 27581686 DOI: 10.1016/j.marenvres.2016.08.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 05/25/2016] [Accepted: 08/22/2016] [Indexed: 06/06/2023]
Abstract
Ammonium and nitrate are the primary nitrogen sources in natural environments, and are essential for growth and development in photosynthetic eukaryotes. In this study, we report on the isolation and characterization of an ammonium transporter gene (PyAMT1) which performs a key function in nitrogen (N) metabolism of Pyropia yezoensis thalli. The predicted length of PyAMT1 was 483 amino acids (AAs). The AA sequence included 11 putative transmembrane domains and showed approximately 33-44% identity to algal and plant AMT1 AA sequences. Functional complementation in an AMT-defective yeast mutant indicated that PyAMT1 mediated ammonium transport across the plasma membrane. Expression analysis showed that the PyAMT1 mRNA level was strongly induced by N-deficiency, and was more highly suppressed by resupply of inorganic-N than organic-N. These results suggest that PyAMT1 plays important roles in the ammonium transport system, and is highly regulated in response to external/internal N-status.
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Affiliation(s)
- Makoto Kakinuma
- Graduate School of Bioresources, Mie University, 1577 Kurima-machiya, Tsu, Mie 514-8507, Japan.
| | - Chika Nakamoto
- Graduate School of Bioresources, Mie University, 1577 Kurima-machiya, Tsu, Mie 514-8507, Japan
| | - Kazuki Kishi
- Graduate School of Bioresources, Mie University, 1577 Kurima-machiya, Tsu, Mie 514-8507, Japan
| | - Daniel A Coury
- Graduate School of Bioresources, Mie University, 1577 Kurima-machiya, Tsu, Mie 514-8507, Japan
| | - Hideomi Amano
- Graduate School of Bioresources, Mie University, 1577 Kurima-machiya, Tsu, Mie 514-8507, Japan
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Kakinuma M, Inoue M, Morita T, Tominaga H, Maegawa M, Coury DA, Amano H. Isolation and characterization of a SEPALLATA-like gene, ZjMADS1, from marine angiosperm Zostera japonica. Mar Environ Res 2012; 76:128-137. [PMID: 22014762 DOI: 10.1016/j.marenvres.2011.09.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Revised: 08/31/2011] [Accepted: 09/27/2011] [Indexed: 05/31/2023]
Abstract
In flowering plants, floral homeotic MADS-box genes, which constitute a large multigene family, play important roles in the specification of floral organs as defined by the ABCDE model. In this study, a MADS-box gene, ZjMADS1, was isolated and characterized from the marine angiosperm Zostera japonica. The predicted length of the ZjMADS1 protein was 246 amino acids (AA), and the AA sequence was most similar to those of the SEPALLATA (SEP) subfamily, corresponding to E-function genes. Southern blot analysis suggested the presence of two SEP3-like genes in the Z. japonica genome. ZjMADS1 mRNA levels were extremely high in the spadices, regardless of the developmental stage, compared to other organs from the reproductive and vegetative shoots. These results suggest that the ZjMADS1 gene may be involved in spadix development in Z. japonica and act as an E-function gene in floral organ development in marine angiosperms.
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Affiliation(s)
- Makoto Kakinuma
- Laboratory of Marine Biochemistry, Graduate School of Bioresources, Mie University, 1577 Kurima-machiya, Tsu, Mie 514-8507, Japan.
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Hida T, Kikuchi J, Kakinuma M, Nogusa H. Risk Assessment and Safety Evaluation Study for Ozonolysis of β-Pinene: Raw Material of a Novel Prostaglandin D2 Receptor Antagonist S-5751. Org Process Res Dev 2010. [DOI: 10.1021/op100065d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takemasa Hida
- Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No. 319, Xianxia Road, Shanghai 200051, China, Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, and CMC Development Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Junko Kikuchi
- Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No. 319, Xianxia Road, Shanghai 200051, China, Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, and CMC Development Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Makoto Kakinuma
- Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No. 319, Xianxia Road, Shanghai 200051, China, Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, and CMC Development Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Hideo Nogusa
- Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No. 319, Xianxia Road, Shanghai 200051, China, Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, and CMC Development Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
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Tominaga H, Coury DA, Amano H, Kakinuma M. Isolation and characterization of a cDNA encoding a heat shock protein 70 from a sterile mutant of Ulva pertusa (Ulvales, Chlorophyta). Ecotoxicology 2010; 19:577-588. [PMID: 20111994 DOI: 10.1007/s10646-010-0462-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/11/2010] [Indexed: 05/28/2023]
Abstract
Synthesis and accumulation of molecular chaperones are universal responses found in all cellular organisms when exposed to a variety of unfavorable conditions. Heat shock protein 70 (Hsp70), which is one of the major classes of molecular chaperones, plays a particularly important role in cellular stress responses, and the Hsp70 system is the most intensely studied in higher plants and algae. Therefore, we isolated and characterized a cDNA clone encoding Hsp70 from a sterile strain of Ulva pertusa (Ulvales, Chlorophyta). The sterile U. pertusa Hsp70 (UpHsp70) cDNA consisted of 2,272 nucleotides and had an open reading frame encoding a polypeptide of 663 amino acid (AA) residues with a molecular mass of 71.7 kDa. Amino acid alignment and phylogenetic analysis of Hsp70s from other organisms showed that UpHsp70 was more similar to cytoplasmic Hsp70s from green algae and higher plants (> or =75%) than to those from other algae and microorganisms. Southern blot analysis indicated that the sterile U. pertusa genome had at least four cytoplasmic Hsp70-encoding genes. UpHsp70 mRNA levels were significantly affected by diurnal changes, rapidly increased by high-temperature stress, and gradually increased by exposure to copper, cadmium, and lead. These results suggest that UpHsp70 plays particularly important roles in adaptation to high-temperature conditions and diurnal changes, and is potentially involved in tolerance to heavy metal toxicity.
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Sugiura Y, Matsuda K, Okamoto T, Yamada Y, Imai K, Ito T, Kakinuma M, Amano H. The inhibitory effects of components from a brown alga, Eisenia arborea, on degranulation of mast cells and eicosanoid synthesis. J Funct Foods 2009. [DOI: 10.1016/j.jff.2009.08.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Hida T, Mitsumori S, Honma T, Hiramatsu Y, Hashizume H, Okada T, Kakinuma M, Kawata K, Oda K, Hasegawa A, Masui T, Nogusa H. Practical Diastereoselective Synthesis and Scale-up Study of (+)-2-((1R,2R,3R,5S)-2-Amino-6,6-dimethylbicyclo[3.1.1]hept-3-yl)ethanol: A Key Intermediate of the Novel Prostaglandin D2 Receptor Antagonist S-5751. Org Process Res Dev 2009. [DOI: 10.1021/op9001092] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takemasa Hida
- CMC Research Laboratories, Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No.319, Xianxia Road, Shanghai 200051, China, Shionogi Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, CMC Research Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan, and Nichia Pharmaceutical Industry, 224-20, Kawauchi Cho Hiraishi Ebisuno, Tokushima, 771-0132, Japan
| | - Susumu Mitsumori
- CMC Research Laboratories, Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No.319, Xianxia Road, Shanghai 200051, China, Shionogi Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, CMC Research Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan, and Nichia Pharmaceutical Industry, 224-20, Kawauchi Cho Hiraishi Ebisuno, Tokushima, 771-0132, Japan
| | - Tsunetoshi Honma
- CMC Research Laboratories, Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No.319, Xianxia Road, Shanghai 200051, China, Shionogi Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, CMC Research Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan, and Nichia Pharmaceutical Industry, 224-20, Kawauchi Cho Hiraishi Ebisuno, Tokushima, 771-0132, Japan
| | - Yoshiharu Hiramatsu
- CMC Research Laboratories, Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No.319, Xianxia Road, Shanghai 200051, China, Shionogi Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, CMC Research Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan, and Nichia Pharmaceutical Industry, 224-20, Kawauchi Cho Hiraishi Ebisuno, Tokushima, 771-0132, Japan
| | - Hiroshi Hashizume
- CMC Research Laboratories, Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No.319, Xianxia Road, Shanghai 200051, China, Shionogi Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, CMC Research Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan, and Nichia Pharmaceutical Industry, 224-20, Kawauchi Cho Hiraishi Ebisuno, Tokushima, 771-0132, Japan
| | - Tetsuo Okada
- CMC Research Laboratories, Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No.319, Xianxia Road, Shanghai 200051, China, Shionogi Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, CMC Research Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan, and Nichia Pharmaceutical Industry, 224-20, Kawauchi Cho Hiraishi Ebisuno, Tokushima, 771-0132, Japan
| | - Makoto Kakinuma
- CMC Research Laboratories, Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No.319, Xianxia Road, Shanghai 200051, China, Shionogi Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, CMC Research Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan, and Nichia Pharmaceutical Industry, 224-20, Kawauchi Cho Hiraishi Ebisuno, Tokushima, 771-0132, Japan
| | - Kyozo Kawata
- CMC Research Laboratories, Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No.319, Xianxia Road, Shanghai 200051, China, Shionogi Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, CMC Research Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan, and Nichia Pharmaceutical Industry, 224-20, Kawauchi Cho Hiraishi Ebisuno, Tokushima, 771-0132, Japan
| | - Katsuo Oda
- CMC Research Laboratories, Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No.319, Xianxia Road, Shanghai 200051, China, Shionogi Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, CMC Research Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan, and Nichia Pharmaceutical Industry, 224-20, Kawauchi Cho Hiraishi Ebisuno, Tokushima, 771-0132, Japan
| | - Aiko Hasegawa
- CMC Research Laboratories, Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No.319, Xianxia Road, Shanghai 200051, China, Shionogi Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, CMC Research Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan, and Nichia Pharmaceutical Industry, 224-20, Kawauchi Cho Hiraishi Ebisuno, Tokushima, 771-0132, Japan
| | - Toshiaki Masui
- CMC Research Laboratories, Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No.319, Xianxia Road, Shanghai 200051, China, Shionogi Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, CMC Research Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan, and Nichia Pharmaceutical Industry, 224-20, Kawauchi Cho Hiraishi Ebisuno, Tokushima, 771-0132, Japan
| | - Hideo Nogusa
- CMC Research Laboratories, Shanghai Office, Shionogi & Co., Ltd., 306A, 3F, Building A, Far East International Plaza, No.319, Xianxia Road, Shanghai 200051, China, Shionogi Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan, CMC Research Laboratories, Shionogi & Co., Ltd., 1-3, Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan, and Nichia Pharmaceutical Industry, 224-20, Kawauchi Cho Hiraishi Ebisuno, Tokushima, 771-0132, Japan
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Kakinuma M, Coury DA, Nakamoto C, Sakaguchi K, Amano H. Molecular analysis of physiological responses to changes in nitrogen in a marine macroalga, Porphyra yezoensis (Rhodophyta). Cell Biol Toxicol 2008; 24:629-39. [DOI: 10.1007/s10565-007-9053-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2007] [Accepted: 12/20/2007] [Indexed: 10/22/2022]
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13
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Yoshida A, Kakinuma M, Matsuba T, Suzuki H, Takahashi A, Tanaka M. Effectiveness of Using GnRH Antagonist Protocol With Unsuccessful Long Protocol GnRH Agonist Cases (Full Term Pregnancies Had Not Resulted) in In-Vitro Fertilization (IVF) Cycles. Fertil Steril 2005. [DOI: 10.1016/j.fertnstert.2005.07.794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yoshida A, Kakinuma M, Matsuba T, Seida K, Suzuki H, Tanaka M. Effectiveness of Using Estradiol-GnRH Antagonist Protocol with Unsuccessful Oral Contraceptive Pill-GnRH Antagonist Protocol Cases (full term pregnancies had not resulted) in In-Vitro Fertilization (IVF) Cycles. Fertil Steril 2005. [DOI: 10.1016/j.fertnstert.2005.07.107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Kakinuma M, Coury DA, Inagaki E, Itoh S, Yoshiura Y, Amano H. Isolation and characterization of a single-copy actin gene from a sterile mutant of Ulva pertusa (Ulvales, Chlorophyta). Gene 2004; 334:145-55. [PMID: 15256264 DOI: 10.1016/j.gene.2004.03.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2003] [Revised: 03/05/2004] [Accepted: 03/29/2004] [Indexed: 11/21/2022]
Abstract
We constructed a cDNA library from sterile Ulva pertusa (Ulvales, Chlorophyta), and isolated and characterized a full-length cDNA clone encoding actin. The actin (ACT) cDNA consisted of 1487 nucleotides (nt) and had an open reading frame (ORF) encoding a polypeptide of 377 amino acid (AA) residues. The ACT gene had one intron in the 5'-untranslated region and three introns in the coding region. Transcription started 26 nt downstream of the putative TATA box. A potential polyadenylation signal, TGTAG, was located 100 nt downstream of the terminator codon, TAG. Amino acid alignment with actins from various algae and land plants showed that sterile U. pertusa actin was more similar to actins from Chlorophyta, Phaeophyta, Euglenophyta, and higher plants (over 76.9%) than to actins from Rhodophyta. Southern blot analysis indicated that the sterile U. pertusa genome has only a single actin-encoding gene. Thalli grown on a 12D/12L photoperiod increased in surface area some two-fold over 24 h regardless of the nutritional conditions. The growth rate of thalli during the light period was significantly higher than that during the dark period. Northern hybridization indicated that the expression of actin mRNA was induced and repressed by the light and dark treatments, respectively. These results suggest that the U. pertusa cell division cycle has a periodicity of 24 h and that the ACT gene is highly transcribed during cell growth and development in the light period.
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Affiliation(s)
- Makoto Kakinuma
- Laboratory of Marine Biochemistry, Faculty of Bioresources, Mie University, Tsu Mie 514-8507, Japan
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Nishino Y, Komurasaki T, Yuasa T, Kakinuma M, Izumi K, Kobayashi M, Fujiie S, Gotoh T, Masui Y, Hajima M, Takahira M, Okuyama A, Kataoka T. Practical Large-Scale Synthesis of the 2-Aminomethylpyrrolidin-4-ylthio-Containing Side Chain of the Novel Carbapenem Antibiotic Doripenem. Org Process Res Dev 2003. [DOI: 10.1021/op0340412] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yutaka Nishino
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Tadafumi Komurasaki
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Tetsuya Yuasa
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Makoto Kakinuma
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Kenji Izumi
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Makoto Kobayashi
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Shinichiro Fujiie
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Teruhiro Gotoh
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Yoshiyuki Masui
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Makoto Hajima
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Masayuki Takahira
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Akira Okuyama
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
| | - Takahiro Kataoka
- Bulk Chemicals Process R&D Department, Manufacturing Technology R&D Laboratories, Shionogi & Co., Ltd., Kuise Terajima 2-chome, Amagasaki, Hyogo 660-0813, Japan
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17
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Togashi M, Kakinuma M, Nakaya M, Ooi T, Watabe S. Differential scanning calorimetry and circular dichroism spectrometry of walleye pollack myosin and light meromyosin. J Agric Food Chem 2002; 50:4803-4811. [PMID: 12166963 DOI: 10.1021/jf0116000] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The thermodynamic properties of myosin and its C-terminal fragment, light meromyosin (LMM), from walleye pollack, a typical cold-water fish efficiently utilized on an industrial scale, were analyzed by using differential scanning calorimetry (DSC) and circular dichroism (CD) spectrometry. Recombinant walleye pollack LMM expressed in Escherichia coli was also subjected to DSC and CD measurements for reference. The two proteins prepared from frozen surimi showed three endothermic peaks, the transition temperatures (T(m)) of which were quite similar, although overall DSC patterns differed considerably from one another. Their alpha-helical contents determined by CD were low compared to values reported before for other species. On the other hand, recombinant LMM gave four endothermic peaks at 27.4, 30.8, 36.5, and 43.4 degrees C in DSC and showed an alpha-helical content of approximately 80%. The peak at 27.4 degrees C could not be observed in walleye pollack LMM prepared from frozen surimi and thus was possibly attributed to its C terminus, because this extreme C-terminal region is supposedly truncated during preparation of LMM by tryptic digestion.
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Affiliation(s)
- Marie Togashi
- Laboratory of Aquatic Molecular Biology and Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan
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Tanaka A, Igarashi M, Kakinuma M, Oh-i T, Koga M, Okuda T. The occurrence of various collagen diseases in one family: a sister with ISSc, PBC, APS, and SS and a brother with systemic lupus erythematosus. J Dermatol 2001; 28:547-53. [PMID: 11732722 DOI: 10.1111/j.1346-8138.2001.tb00028.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We encountered siblings who had collagen diseases and related symptoms. Case 1 was a 53-year-old woman who had limited cutaneous systemic sclerosis (ISSc) associated with primary biliary cirrhosis (PBC), antiphospholipid antibody syndrome (APS), and subclinical Sjögren's syndrome (SS). Case 2 was a 48-year-old man, her younger brother, with systemic lupus erythematosus (SLE) that developed at 32 years of age. Investigation of their family revealed that their mother had Raynaud's phenomenon, arthritis, and subclinical Sjögren's syndrome, and that another younger brother of Cases 1 and 2 had Raynaud's phenomenon and general fatigue. HLA analysis revealed that the sister and brother had some identical HLA antigens in common, including A2, A33 (19), B67, B44 (12), Cw7, DR2, DR6, DR52, and DQ1. The sister, brother and their mother had common HLA antigens including A2, B67, Cw7, DR2, and DQ1. Although Cases 1 and 2 shared the same HLA system, they presented different phenotypes of collagen disease.
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Affiliation(s)
- A Tanaka
- Department of Dermatology, Tokyo Medical University, Japan
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Kakinuma M, Hatanaka A, Fukushima H, Nakaya M, Maeda K, Doi Y, Ooi T, Watabe S. Differential scanning calorimetry of light meromyosin fragments having various lengths of carp fast skeletal muscle isoforms. J Biochem 2000; 128:11-20. [PMID: 10876153 DOI: 10.1093/oxfordjournals.jbchem.a022720] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Various recombinant light meromyosin (LMM) fragments were prepared from cDNAs encoding the 10 degrees C and 30 degrees C types of myosin heavy chain isoforms predominantly expressed in fast skeletal muscles of the 10 degrees C- and 30 degrees C-acclimated carp, respectively. These included three kinds of quarter fragments, 1/4-, 2/4-, and 4/4-quarter, composed of residues 1-130, 131-270, and 401-563 from the N-terminus, respectively, as well as three halves, N-, M-, and C-half fragments, containing residues 1-301, 131-400, and 302-563, respectively, and 69K fragments of residues 1-525. Unfortunately, in spite of extensive efforts, the 3/4-quarter fragment was not expressed for both 10 degrees C and 30 degrees C types in our expression system using Escherichia coli. All the LMM fragments except for the 10- and 30-2/4 quarters for the 10 degrees C and 30 degrees C types, respectively, exhibited a typical pattern of a-helix in CD spectrometry. When these were subjected to differential scanning calorimetry (DSC), 30 degrees C-type LMM fragments were all found to be more thermostable than the 10 degrees C-type counterparts. To identify amino acid substitutions responsible for different thermostabilities between the 10 degrees C- and 30 degrees C-type LMMs, six mutant proteins were prepared, mainly focusing on substitutions in the C-terminal half of LMM, and subjected to DSC and CD analyses. For three mutants in which two residues of the 10 degrees C type were replaced by those of the 30 degrees C type, 10-S355T/T361A, 10-M415L/L417V, and 10-S535A/H536Q, the endothermic peaks in DSC increased by 1.4-2.0 degrees C from that of the original 10 degrees C type. The T(m) values for two single-residue substitutions, 10-H449R and 10-T491I, shifted 0.8 and 1.3 degrees C higher than that for the 10 degrees C-type LMM, respectively, whereas the last mutant, 10-G61V, showed no change in thermostability. The finding that the difference in T(m) values for major endothermic peaks from the 10-69K and 30-69K fragments was 4.6 degrees C, which roughly corresponds to that between the original 10 degrees C and 30 degrees C types, suggested that the eight substitutions located in the C-terminal region of the 69K fragments (residues 302-525) are major candidates for the residues responsible for the difference in thermostability between the 10 degrees C- and 30 degrees C-type LMMs.
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Affiliation(s)
- M Kakinuma
- Laboratory of Aquatic Molecular Biology and Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan
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20
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Kokuryo Y, Nakatani T, Kakinuma M, Kabaki M, Kawata K, Kugimiya A, Kawada K, Matsumoto M, Suzuki R, Ohtani M. New gamma-fluoromethotrexates modified in the pteridine ring: synthesis and in vitro immunosuppressive activity. Eur J Med Chem 2000; 35:529-34. [PMID: 10889331 DOI: 10.1016/s0223-5234(00)00147-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Our continuing program to develop new antifolate drugs useful against rheumatoid arthritis led us to modify the pteridine ring of gamma-fluoromethotrexate. Pyrrolopyrimidine derivatives 1e and 1t were found to exhibit potent suppressive effects on the responses of both T and B cells to mitogens, although tetrahydropyridopyrimidine derivatives 2e and 2t and quinazoline derivatives 3e, 3t and 4e showed very weak suppressive activities. Thus, conversion of the pteridine ring of gamma-fluoromethotrexate to a pyrrolopyrimidine ring led to a new potential antirheumatic compound.
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Affiliation(s)
- Y Kokuryo
- Shionogi Research Laboratories, Shionogi & Co. Ltd., Fukushima-ku, 553-0002, Osaka, Japan
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Shoya Y, Kobayashi T, Koda T, Ikuta K, Kakinuma M, Kishi M. Two proline-rich nuclear localization signals in the amino- and carboxyl-terminal regions of the Borna disease virus phosphoprotein. J Virol 1998; 72:9755-62. [PMID: 9811710 PMCID: PMC110486 DOI: 10.1128/jvi.72.12.9755-9762.1998] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Borna disease virus (BDV) uses a unique strategy of replication and transcription which takes place in the nucleus, unlike other known, nonsegmented, negative-stranded RNA viruses of animal origin. In this process, viral constituents necessary for replication must be transported to the nucleus from the cytoplasm. We report here the evidence that BDV P protein, which may play an important role in viral replication and transcription, is transported into the nucleus in the absence of other viral constituents. This transportation is accomplished by its own nuclear localization signals (NLSs), which are present in both N-terminal (29PRPRKIPR36) and C-terminal (181PPRIYPQLPSAPT193) regions of the protein. These two NLSs can function independently and both have several Pro residues as key amino acids.
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Affiliation(s)
- Y Shoya
- Sections of Bacterial Infection, Institute of Immunological Science, Hokkaido University, Sapporo 060-0815, Japan
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Affiliation(s)
- T Koda
- Section of Bacterial Infection, Institute of Immunological Science, Hokkaido University, Kita-ku, Kita-15, Nishi-7, Sapporo 060 Japan
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Kakinuma M, Nakaya M, Hatanaka A, Hirayama Y, Watabe S, Maeda K, Ooi T, Suzuki S. Thermal unfolding of three acclimation temperature-associated isoforms of carp light meromyosin expressed by recombinant DNAs. Biochemistry 1998; 37:6606-13. [PMID: 9572878 DOI: 10.1021/bi972344g] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Differential scanning calorimetry (DSC) was performed to investigate thermodynamic properties of three carp fast skeletal light meromyosin (LMM) isoforms expressed in Escherichia coli by recombinant DNAs. Three isoforms were the 10 degreesC-, intermediate-, and 30 degreesC-type LMM predominantly expressed in carp acclimated to 10, 20, and 30 degreesC. The isoforms expressed in E. coli by recombinant DNAs exhibited a typical pattern of alpha-helix in CD spectroscopy with two minima at 222 and 208 nm. Moreover, the three isoforms formed paracrystals typical of LMM, suggesting that expressed proteins retained intact structural properties. When the LMM isoforms were subjected to DSC analysis, the 10 degreesC and 30 degreesC types showed endotherms having transition temperatures (Tm) at 35.1 and 39.5 degreesC, respectively, which are responsible for thermal unfolding of alpha-helix. The intermediate type exhibited two comparable endotherms with Tm values at 34.9 and 40.6 degreesC, implying that it has intermediate thermodynamic properties between those of 10 degreesC and 30 degreesC types. However, a chimeric LMM having the 10 degreesC and 30 degreesC type as N- and C-terminal halves, respectively, showed the DSC pattern typical of the whole 30 degreesC-type molecule. On the other hand, another chimeric LMM composed of the N-terminal 30 degreesC type and C-terminal 10 degreesC type gave the pattern of the full 10 degreesC type. These results suggest that thermodynamic properties of the C-terminal half largely account for thermal unfolding of the whole molecule.
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Affiliation(s)
- M Kakinuma
- Laboratory of Aquatic Molecular Biology and Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan
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Zheng JY, Koda T, Fujiwara T, Kishi M, Ikehara Y, Kakinuma M. A novel Rab GTPase, Rab33B, is ubiquitously expressed and localized to the medial Golgi cisternae. J Cell Sci 1998; 111 ( Pt 8):1061-9. [PMID: 9512502 DOI: 10.1242/jcs.111.8.1061] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Small GTP-binding proteins of the Rab family play important roles at defined steps of vesicular transport in protein secretion and the endocytosis pathway. In mammals, more than 30 proteins belonging to the Rab family have been reported to date. We report here the molecular cloning and characterization of a novel Rab protein, Rab33B. The amino acid sequence of Rab33B shows 55.3% identity to the Rab33A protein (previously called S10), and these two proteins share unique amino acid sequences at the effector domain. The genomic organization of rab33B was the same as rab33A: it consists of two exons. Thus, these two proteins make a subclass within the Rab family. Northern blot analysis showed that rab33B is expressed ubiquitously in mouse tissues, in contrast to rab33A whose expression is restricted to the brain and the immune system. A 26 kDa protein was detected by western blotting using a Rab33B-specific monoclonal antibody. Using immunofluorescence studies, Rab33B was shown to co-localize with (alpha)-mannosidase II, a Golgi-specific marker. Immunoelectron microscopy analysis further defined the localization of Rab33B to the medial Golgi cisternae. These results suggest Rab33B plays a role in intra-Golgi transport.
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Affiliation(s)
- J Y Zheng
- Section of Bacterial Infection, Institute of Immunological Science, Hokkaido University, Sapporo, Japan
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Kobayashi T, Shoya Y, Koda T, Takashima I, Lai PK, Ikuta K, Kakinuma M, Kishi M. Nuclear targeting activity associated with the amino terminal region of the Borna disease virus nucleoprotein. Virology 1998; 243:188-97. [PMID: 9527928 DOI: 10.1006/viro.1998.9049] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The Borna disease virus (BDV) replicates in the nucleus. The viral p40 protein (N), which is found abundantly in the nucleus in BDV-infected cells, may play an important role in virus replication. To analyze the amino acid residues involved in the nuclear targeting of BDV N, a series of eukaryotic expression plasmids encoding deletion mutants of N was constructed and transfected into COS-7 cells. In indirect immunofluorescence assays with a rabbit anti-BDV N antiserum, wild-type N was located in the nucleus of transfected cells in the absence of other viral constituents. In contrast, mutants lacking the 13 NH2-terminal amino acid residues 1MPPKRRLVDDADA13 in common gave a cytoplasmic localization pattern. Similarly, a mutant with substitution of 4KRR6 by 4NSG6 was retained in the cytoplasm. Furthermore, a nonapeptide, 3PKRRLVDDA11, derived from the NH2-terminal region of N conferred nuclear targeting activity to beta-galactosidase, which normally resides in the cytoplasm. Thus, we have identified the nuclear targeting signal of the BDV N and narrowed it to the NH2-terminal region where 4KRR6 basic amino acid residues are located.
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Affiliation(s)
- T Kobayashi
- Institute of Immunological Science, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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26
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Miyazawa T, Iino Y, Ogawa K, Kishimoto H, Kakinuma M, Shiga J. [Mucous pathology and macrolide treatment of paranasal sinusitis in children]. Jpn J Antibiot 1998; 51 Suppl A:100-2. [PMID: 9597499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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27
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Watabe S, Hirayama Y, Nakaya M, Kakinuma M, Kikuchi K, Guo XF, Kanoh S, Chaen S, Ooi T. Carp expresses fast skeletal myosin isoforms with altered motor functions and structural stabilities to compensate for changes in environmental temperature. J Therm Biol 1997. [DOI: 10.1016/s0306-4565(97)00057-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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28
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Itoh Y, Kajino K, Ogasawara K, Takahashi A, Namba K, Negishi I, Matsuki N, Iwabuchi K, Kakinuma M, Good RA, Onoé K. Interaction of pigeon cytochrome c-(43-58) peptide analogs with either T cell antigen receptor or I-Ab molecule. Proc Natl Acad Sci U S A 1997; 94:12047-52. [PMID: 9342360 PMCID: PMC23698 DOI: 10.1073/pnas.94.22.12047] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
We determined that a pigeon cytochrome c-derived peptide, p43-58, possesses two anchor residues, 46 and 54, for binding with the I-Ab molecule that are compatible to the position 1 (P1) and position 9 (P9) of the core region in the major histocompatibility complex (MHC) class II binding peptides, respectively. In the present study to analyze each binding site between P1 and P9 of p43-58 to either I-Ab or T cell antigen receptor (TCR), we investigated T cell responses to a series of peptides (P2K, P3K, P4K, P5K, P6K, P7K, and P8E) that sequentially substituted charged amino acid residues for the residues at P2 to P8 of p43-58. T cells from C57BL/10 (I-Ab) mice immunized with P4K or P6K did not mount appreciable proliferative responses to the immunogens, but those primed with other peptides (P2K, P3K, P5K, P7K, and P8E) showed substantial responses in an immunogen-specific manner. It was demonstrated by binding studies that P1 and P9 functioned as main anchors and P4 and P6 functioned as secondary anchors to I-Ab. Analyses of Vbeta usage of T cell lines specific for these analogs suggested that P8 interacts with the complementarity-determining region 1 (CDR1)/CDR2 of the TCR beta chain. Furthermore, sequencing of the TCR on T cell hybridomas specific for these analogs indicated that P5 interacts with the CDR3 of the TCR beta chain. The present findings are consistent with the three-dimensional structure of the trimolecular complex that has been reported for TCR/peptide/MHC class I molecules.
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Affiliation(s)
- Y Itoh
- Section of Pathology, Institute of Immunological Science, Hokkaido University, Sapporo 060, Japan
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29
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Nakaya M, Kakinuma M, Watabe S, Ooi T. Differential scanning calorimetry and CD spectrometry of acclimation temperature-associated types of carp light meromyosin. Biochemistry 1997; 36:9179-84. [PMID: 9230050 DOI: 10.1021/bi9701181] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Differential scanning calorimetry and CD spectrometry were employed to study the thermal unfolding of light meromyosin (LMM) prepared from carp acclimated to different temperatures. The transition temperatures given by the major peaks at pH 8.0 in 0.6 M KCl for LMM from carp acclimated to 10 degrees C were 32.5 and 39.5 degrees C with the calorimetric enthalpies (DeltaHcal) of 269 and 52 kcal/mol, respectively. LMM from carp acclimated to 20 degrees C exhibited three peaks of transition temperatures at 34.5, 40.2, and 46.9 with DeltaHcal of 152, 20, and 10 kcal/mol, respectively. On the other hand, LMM from carp acclimated to 30 degrees C showed two different patterns. The first experiment gave two transition temperatures at 39.2 and 47.3 degrees C with DeltaHcal of 231 and 39 kcal/mol, respectively. The second series of experiments resulted in showing three peaks of 34.4, 39.5, and 47.5 degrees C with DeltaHcal of 117, 123, and 28 kcal/mol, respectively. N-terminal amino acid sequence analysis revealed that LMM at the second series of experiments with the 30 degrees C-acclimated carp contained component(s) predominant in the 20 degrees C-acclimated carp. Thermal unfolding responsible for these transition temperatures was well explained by melting of alpha-helices which could be determined by far-ultraviolet CD spectroscopy. These results clearly demonstrate that the 30 degrees C-acclimated carp contained the most thermostable LMM.
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Affiliation(s)
- M Nakaya
- Laboratory of Aquatic Molecular Biology and Biotechnology, University of Tokyo, Japan
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30
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Kakinuma M, Tang WR, Arimura Y, Koda T, Kishi M. Organization of RT1-DOa and RT1-DOb loci. Transplant Proc 1997; 29:1670. [PMID: 9142226 DOI: 10.1016/s0041-1345(97)00009-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- M Kakinuma
- Institute of Immunological Science, Hokkaido University, Sapporo, Japan
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31
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Abstract
As a step toward understanding the transcriptional regulation of the adrenocorticotropin receptor (ACTH-R) gene, we examined the full length cDNA sequence of the mouse ACTH-R by rapid amplification of cDNA ends, and the organization of the gene. Mouse ACTH-R mRNA consists of 374 bp in the 5'-untranslated region (UTR), 888 bp in the coding sequence, and 445 bp in the 3'-UTR, the 1707 bp being fairly compatible with the 1.8-kb adrenal mRNA detected by Northern analysis. The mouse ACTH-R gene consists of at least four exons; the first three exons encode 5'-UTR and the fourth exon encodes part of 5'-UTR, the entire coding region, and the whole of 3'-UTR. We also defined two mRNA species, one with and one without the 57-bp exon 2, produced by alternative splicing.
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Affiliation(s)
- C Shimizu
- Department of Medicine II, Hokkaido University School of Medicine, Sapporo, Japan
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32
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Abstract
We previously reported the cloning of a human S10 cDNA which encodes a small GTP-binding protein belonging to the Rab subfamily. Here we describe a mouse S10 cDNA and its genomic structure. Mouse S10 is 92.3% homologous at the nucleotide level and 98.3% identical at the amino acid level compared to human S10. The mouse S10 gene is comprised of two exons and a single intron. Northern blotting of tissue RNAs indicates that the S10 gene is predominantly expressed in brain.
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Affiliation(s)
- J Y Zheng
- Institute of Immunological Science, Hokkaido University, Sapporo, Japan
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33
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Imai J, Hirayama Y, Kikuchi K, Kakinuma M, Watabe S. cDNA cloning of myosin heavy chain isoforms from carp fast skeletal muscle and their gene expression associated with temperature acclimation. J Exp Biol 1997; 200:27-34. [PMID: 9023993 DOI: 10.1242/jeb.200.1.27] [Citation(s) in RCA: 78] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We have isolated cDNA clones encoding fast skeletal muscle myosin heavy chains of carp acclimated to 10, 20 and 30 degrees C for over 5 weeks. All clones covered at least the full length of L-meromyosin, the C-terminal part of the myosin molecule. Nucleotide sequence analysis on cDNA clones showed three types of 3' untranslated sequences, demonstrating that carp expresses at least three myosin heavy chain isoforms in fast skeletal muscle in an acclimation-temperature-dependent manner. cDNAs were identified which were the predominant types expressed in 10 degrees C- and 30 degrees C-acclimated fish, as well as an intermediate type present at all acclimation temperatures. Northern blot analysis using probes of three kinds of DNA fragments from the 3' untranslated region of carp acclimated to 10, 20 and 30 degrees C further confirmed the presence of acclimation-temperature-specific isoforms. In addition, it was found that mRNA levels of three isoforms were altered in an acclimation-temperature-dependent manner. When the deduced amino acid sequences of three types of carp L-meromyosin were compared with those of homoiotherms, the 30 degrees C-acclimated type was more similar to those of homoiotherms than was the 10 degrees C-acclimated type.
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Affiliation(s)
- J Imai
- Laboratory of Aquatic Molecular Biology and Biotechnology, Graduate School of Agriculture and Life Sciences, University of Tokyo, Japan
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34
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Shoya Y, Kobayashi T, Koda T, Lai PK, Tanaka H, Koyama T, Ikuta K, Kakinuma M, Kishi M. Amplification of a full-length Borna disease virus (BDV) cDNA from total RNA of cells persistently infected with BDV. Microbiol Immunol 1997; 41:481-6. [PMID: 9251059 DOI: 10.1111/j.1348-0421.1997.tb01881.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We have developed a novel reverse transcriptase-polymerase chain reaction (RT-PCR) to amplify the full-length 8.9 kilobase (kbp) cDNA of the Borna disease virus (BDV) RNA genome from the total cellular RNA of MDCK cells persistently infected with BDV (MDCK/BDV). Antigenomic BDV cDNA was reverse transcribed using a 53-mer oligonucleotide primer, corresponding to the 5'-terminus of a putative 3'-leader sequence of the BDV RNA genome, for 2 hr at 42 C followed by 30 min at 55 C. PCR was performed in the presence of this 53-mer antigenomic primer and a 25-mer primer, corresponding to the 3'-terminus of the BDV antigenomic cDNA, by use of an rTth DNA polymerase with proof-reading activity. The amplified full-length BDV cDNA was detected in as little as 20 ng of total cellular RNA of MDCK/BDV. This RT-PCR method should be a useful technique to study the molecular quasispecies of BDV.
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Affiliation(s)
- Y Shoya
- Institute of Immunological Science, Hokkaido University, Japan
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35
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Kijima H, Kubo M, Ishizuka T, Kakinuma M, Koike T. A novel missense mutation in the thyroid hormone receptor beta gene in a kindred with resistance to thyroid hormone. Hum Genet 1996; 97:407-8. [PMID: 8786093 DOI: 10.1007/bf02185783] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Direct sequencing of exon 9 of the thyroid hormone receptor beta (TRbeta) gene in a kindred with resistance to thyroid hormone revealed a substitution of threonine for methionine in codon 313 in one allele resulting from a T to C transition. This is a novel missense mutation that resides in one of the two mutational "hot-spot" regions of the TR beta gene suggesting altered triiodothyronine binding to this mutant receptor.
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Affiliation(s)
- H Kijima
- Department of Internal Medicine II, Hokkaido University School of Medicine, Sapporo, Japan
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36
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Kishi M, Arimura Y, Ikuta K, Shoya Y, Lai PK, Kakinuma M. Sequence variability of Borna disease virus open reading frame II found in human peripheral blood mononuclear cells. J Virol 1996; 70:635-40. [PMID: 8523585 PMCID: PMC189858 DOI: 10.1128/jvi.70.1.635-640.1996] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
A cDNA fragment of the Borna disease virus (BDV) open reading frame II (ORF-II), which encodes a 24-kDa phosphoprotein (p24 [P protein]), was amplified from total RNA of peripheral blood mononuclear cells (PBMC) from three psychiatric inpatients. The amplified cDNA fragments were cloned, sequenced, and analyzed. A total of 15 clones, 5 from each patient, were studied. Intrapatient divergencies of the BDV ORF-II nucleotide sequence were 4.2 to 7.3%, 4.8 to 7.3%, and 2.8 to 7.1% for the three patients, leading to differences of 7.7 to 14.5%, 10.3 to 17.1%, and 6.0 to 16.2%, respectively, in the deduced amino acid sequence for BDV p24. Interpatient divergencies among the 15 clones were 5.9 to 12.7% at the nucleotide level and 12.8 to 28.2% at the amino acid level. Thus, in p24, BDV in human PBMC of the patients undergoes mutation at high rates in vivo. Additionally, we found that the nucleotide sequence of the 15 human BDV ORF-II cDNA clones differed from those of the horse strains V and He/80-1 by 4.2 to 9.3%. However, comparison of the consensus amino acid sequence deduced from the 15 human clones with those of the horse strains revealed no human-specific amino acid residue, suggesting that the BDV infecting humans may be related to that infecting horses.
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Affiliation(s)
- M Kishi
- Section of Serology, Hokkaido University, Sapporo, Japan
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37
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Affiliation(s)
- Y Arimura
- Section of Bacterial Infection, Hokkaido University, Sapporo, Japan
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38
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Yoshimatsu K, Arikawa J, Yoshida R, Li H, Yoo YC, Kariwa H, Hashimoto N, Kakinuma M, Nobunaga T, Azuma I. Production of recombinant hantavirus nucleocapsid protein expressed in silkworm larvae and its use as a diagnostic antigen in detecting antibodies in serum from infected rats. Lab Anim Sci 1995; 45:641-6. [PMID: 8746523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The recombinant nucleocapsid protein (rNP) of Hantaan virus was expressed by a baculovirus vector in silkworm hemolymph and was used as an antigen in western blotting (WB). The rNP is expressed in insoluble form in hemolymph; therefore simple washing of the insoluble fraction with phosphate-buffered saline by low-speed centrifugation allowed preparation of purified antigen for WB. The rNP had strain-specific and hantavirus-common epitopes similar to the authentic NP antigen of hantavirus and was stable after transfer to membrane. For detection of antibody in serially obtained sera from experimentally infected rats, WB enabled detection of IgM antibodies 3 days after infection, which was at least 2 days earlier than detection by the indirect immunofluorescent antibody test (IFA). Thus WB had a higher sensitivity than the IFA for detection of hantavirus antibody in the serum of experimentally infected rats. The WB-determined IgG antibody titer was about 10 times higher than that determined by the IFA. No background staining was observed by WB even at a 1:10 dilution of serum. The selected rat sera with strong background staining or confusing staining patterns by IFA, but not focus reduction neutralization test titers, could be interpreted as test-negative because they did not have a specific reaction to virus antigen by WB. Thus the specificity of WB was higher than that of the IFA. Moreover, WB can distinguish specific from nonspecific reactions by the detection of the specific antigen on the WB membrane. Therefore the IFA or enzyme-linked immunosorbent assay followed by WB is recommended for serologic confirmation of hantavirus infection.
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Affiliation(s)
- K Yoshimatsu
- Institute of Immunological Science, Hokkaido University, Sapporo, Japan
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39
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Kishi M, Zheng YH, Bahmani MK, Tokunaga K, Takahashi H, Kakinuma M, Lai PK, Nonoyama M, Luftig RB, Ikuta K. Naturally occurring accessory gene mutations lead to persistent human immunodeficiency virus type 1 infection of CD4-positive T cells. J Virol 1995; 69:7507-18. [PMID: 7494257 PMCID: PMC189689 DOI: 10.1128/jvi.69.12.7507-7518.1995] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Proviral DNA from cells surviving severe but transient cytopathic effects, mediated by infection with recombinant human immunodeficiency virus type 1 (HIV-1) carrying a single gene mutation at vif, vpr, or vpu, was characterized by use of HIV-1-specific primer pairs in a two-step PCR. Deletion mutations were detected in a region that spanned the vif and vpr open reading frames. Cloning and sequencing of the amplified DNA from this region revealed frequent large deletions in a limited number of nucleotide positions. Analyses of the deletions suggested that (i) genetic recombination, (ii) template-primer slippage, and (iii) misalignment of the growing point during reverse transcription of the HIV-1 genome might be the mechanisms that generated the mutations. Apart from the large deletions, smaller deletions that gave frameshift mutations in vif and/or vpr prevailed. In addition, cells infected with a triple mutant defective in vif, vpr, and vpu did not show any cytopathic effect. Thus, mutations generating multiple accessory gene defects during HIV-1 replication correlate with viral persistence and loss of cytopathogenicity.
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Affiliation(s)
- M Kishi
- Section of Serology, Hokkaido University, Sapporo, Japan
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40
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Kishi M, Nakaya T, Nakamura Y, Kakinuma M, Takahashi TA, Sekiguchi S, Uchikawa M, Tadokoro K, Ikeda K, Ikuta K. Prevalence of Borna disease virus RNA in peripheral blood mononuclear cells from blood donors. Med Microbiol Immunol 1995; 184:135-8. [PMID: 8577314 DOI: 10.1007/bf00224350] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The presence of Borna disease virus (BDV) in peripheral blood mononuclear cells (PBMC) of 100 blood donors from Sapporo and 72 blood donors from Tokyo was examined using nested reverse transcriptase/polymerase chain reaction amplification with specific-primers for BDV p24. Anti-BDV p24 antibodies in the plasma of the 100 blood donors from Sapporo also were studied by enzyme-linked immunosorbent assay and by Western blot. BDV RNA was detected in 3 (4.2%) of the 72 PBMC samples from Tokyo, and in 5 (5%) of the 100 PBMC samples from Sapporo. In contrast, anti-p24 antibodies were found in only 1 (1%) of the donors from Sapporo. These results suggest that BDV infection in humans may be more widespread than previously thought.
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Affiliation(s)
- M Kishi
- Institute of Immunological Science, Hokkaido University, Sapporo, Japan
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41
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Affiliation(s)
- Y Arimura
- Section of Bacterial Infection, Hokkaido University, Sapporo, Japan
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42
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Kishi M, Nakaya T, Nakamura Y, Zhong Q, Ikeda K, Senjo M, Kakinuma M, Kato S, Ikuta K. Demonstration of human Borna disease virus RNA in human peripheral blood mononuclear cells. FEBS Lett 1995; 364:293-7. [PMID: 7538936 DOI: 10.1016/0014-5793(95)00406-y] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BDV naturally infects horses and sheep, and causes sporadic neurological disease. Serological evidence suggests an association of BDV, or a related virus, with specific psychiatric diseases in humans. Here, by using a nested RT-PCR technique, we demonstrate that human BDV RNA is present in the PBMC of psychiatric patients. In an examination of a total of 60 patients from 5 wards of a hospital in Japan, the detection rate differed within each ward, ranging from 8% to > 50% (37% on the average). Of particular note was the finding that the human derived BDV sequences, which included deleted forms in about 23% of the positive samples, were slightly different from those derived from horse BDV. These results suggest urgent consideration of the measures to be taken to cope with the effects of blood transfusion. In addition, the detection of a high level of BDV in the PBMC of patients will help our understanding of the pathogenesis in the disease.
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Affiliation(s)
- M Kishi
- Institute of Immunological Science, Hokkaido University, Sapporo, Japan
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43
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Arimura Y, Tang WR, Koda T, Kakinuma M. Analysis of a portion of the RT1 region containing H beta, H alpha, and DOa class II genes. Transplant Proc 1995; 27:1505-6. [PMID: 7725392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Y Arimura
- Section of Bacterial Infection, Hokkaido University, Sapporo, Japan
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44
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Affiliation(s)
- Y Arimura
- Section of Bacterial Infection, Hokkaido University, Sapporo, Japan
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45
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Abstract
A genomic DNA encoding a mouse adrenocorticotropin (ACTH) receptor was isolated. The predicted 296-amino-acid sequence showed 88.9 and 78.7% identities to the human and bovine homologues, respectively.
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Affiliation(s)
- M Kubo
- Second Department of Internal Medicine, School of Medicine, Hokkaido University, Sapporo, Japan
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46
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Kishi M, Tokunaga K, Zheng YH, Bahmani MK, Kakinuma M, Nonoyama M, Lai PK, Ikuta K. Superinfection of a defective human immunodeficiency virus type 1 provirus-carrying T cell clone with vif or vpu mutants gives cytopathic virus particles by homologous recombination. AIDS Res Hum Retroviruses 1995; 11:45-53. [PMID: 7734196 DOI: 10.1089/aid.1995.11.45] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The partially CD4-expressing T cell clone, Vpr-1, which carries a latent vpr-defective HIV-1 genome and expresses HIV-1 Nef protein only, was permissive to superinfection by HIV-1. Superinfection of Vpr-1 with vif- or vpu-defective mutants, which were noncytopathic, reactivated the vpr-defective virus and led to homologous recombination and cytopathogenesis. The data provide an experimental model for homologous recombination being an important mechanism whereby HIV-1 acquires genetic heterogeneity, and when occurring among defective virus in vivo bestows novel biological activities and virulence.
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MESH Headings
- CD4-Positive T-Lymphocytes/metabolism
- CD4-Positive T-Lymphocytes/virology
- Clone Cells
- Gene Expression Regulation, Viral
- Gene Products, nef/biosynthesis
- Gene Products, nef/genetics
- Gene Products, vif/biosynthesis
- Gene Products, vif/genetics
- Gene Products, vpr/biosynthesis
- Gene Products, vpr/genetics
- Genome, Viral
- HIV Infections/genetics
- HIV-1/genetics
- HIV-1/pathogenicity
- Humans
- Mutation
- Recombination, Genetic
- Superinfection/genetics
- nef Gene Products, Human Immunodeficiency Virus
- vif Gene Products, Human Immunodeficiency Virus
- vpr Gene Products, Human Immunodeficiency Virus
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Affiliation(s)
- M Kishi
- Section of Serology, Hokkaido University, Sapporo, Japan
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47
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Hasan S, Koda T, Kakinuma M. An upstream NF-Y-binding site is required for transcriptional activation from the hst promoter in F9 embryonal carcinoma cells. J Biol Chem 1994; 269:25042-8. [PMID: 7929190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Expression of hst (k-FGF, FGF-4), a member of the fibroblast growth factor gene family, is restricted to early stages of developing embryos and to embryonal carcinoma cells. In F9, which is a prototype of embryonal carcinoma cells expressing hst, the expression of hst gene is positively regulated by a downstream octamer motif that functions as an enhancer. We have investigated, by chloramphenicol acetyltransferase (CAT) reporter fusion gene analysis in F9, the cis-acting regulatory element within the hst promoter region that interacts with this enhancer. Electrophoretic mobility shift assay and methylation interference analysis showed that the hst promoter contains, in a segment termed Y, the sequence 5'-CTGATTGGCA-3', which closely resembles the consensus binding motif for the CCAAT-binding factor NF-Y. Deletions or mutations in this element substantially reduced expression of hst-CAT constructs. The nuclear factor binding to the Y segment of the hst promoter was indistinguishable from NF-Y, as inferred from interactions with specific anti-NF-Y monoclonal and polyclonal antibodies. We conclude that the expression of the hst gene in F9 is positively regulated by the coordinated interaction between an NF-Y-binding site and an octamer motif.
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Affiliation(s)
- S Hasan
- Section of Bacterial Infection, Graduate School of Environmental Science, Hokkaido University, Sapporo, Japan
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48
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Hasan S, Koda T, Kakinuma M. An upstream NF-Y-binding site is required for transcriptional activation from the hst promoter in F9 embryonal carcinoma cells. J Biol Chem 1994. [DOI: 10.1016/s0021-9258(17)31495-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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49
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Abstract
We investigated the breakpoints of the bcr gene in 46 Ph1-positive CML cases by Southern blot analysis of bcr rearrangement, and in 17 CML cases by a combination of Southern blot analysis and RT-PCR. By Southern blot, the breakpoint was not identified on M-bcr in three CML cases, of which one case showed the P210-type bcr/abl transcript and two cases showed the ALL-type (P190-type) bcr/abl transcript with or without P210 transcript. Later two cases showed unique hematological profiles such as thrombocytosis, mild myelofibrosis, and relative resistance to alkylating agents. Therefore, the present study suggests that expression of the P190-type transcript may affect clinical and hematological findings in CML.
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MESH Headings
- Adult
- Base Sequence
- Blotting, Southern
- DNA, Neoplasm/analysis
- DNA, Neoplasm/genetics
- Diagnosis, Differential
- Female
- Fusion Proteins, bcr-abl/genetics
- Gene Expression Regulation, Neoplastic
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/diagnosis
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Male
- Middle Aged
- Molecular Sequence Data
- Polymerase Chain Reaction
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/diagnosis
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
- RNA, Messenger/analysis
- RNA, Messenger/genetics
- Transcription, Genetic
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Affiliation(s)
- Y Kunieda
- Third Department of Internal Medicine, School of Medicine, Sapporo, Japan
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50
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Abstract
The hst-1 gene, which is implicated in mammalian embryonic development and morphological transformation of NIH3T3 cells, is expressed in undifferentiated F9 cells, but not in differentiated F9 and other well-differentiated cells, such as PYS-2, NIH3T3 and HeLa cells. An octamer element present in the 3' untranslated region acts as an enhancer. Although Oct3 is down-regulated when F9 cells are differentiated, transient expression of Oct3 did not enhance the hst-1 promoter activity in HeLa, NIH3T3 or PYS-2 cells. Thus, the role of Oct3 on hst-1 expression remains elusive, and an additional transcription factor which interacts may regulate hst-1 transcription in association with Oct1, Oct3 or both.
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Affiliation(s)
- T Koda
- Section of Bacterial Infection, Hokkaido University, Sapporo, Japan
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