1
|
Valladares V, Pasquini C, Thiengo SC, Mello-Silva CC. Feasibility of near-infrared spectroscopy for species identification and parasitological diagnosis of freshwater snails of the genus Biomphalaria (Planorbidae). PLoS One 2021; 16:e0259832. [PMID: 34762684 PMCID: PMC8584770 DOI: 10.1371/journal.pone.0259832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 10/27/2021] [Indexed: 11/19/2022] Open
Abstract
Near Infrared Spectroscopy (NIRS) has been applied in epidemiological surveillance studies of insect vectors of parasitic diseases, such as the Dengue's mosquitoes. However, regarding mollusks, vectors of important worldwide helminth diseases such as schistosomiasis, fascioliasis and angiostrongyliasis, NIRS studies are rare. This work proposes to establish and standardize the procedure of data collection and analysis using NIRS applied to medical malacology, i.e., to mollusk vectors identifications. Biomphalaria shells and live snails were analyzed regarding several operational aspects, such as: moisture, shell side and position of the live animal for acquisition of NIR spectra. Representative spectra of Biomphalaria shells and live snails were collected using an average of 50 scans per sample and resolution of 16 cm-1. For shells, the sample should first be dried for a minimum of 15 days at an average temperature of 26±1°C, and then placed directly in the equipment measurement window with its left side facing the light beam. Live animals should be dried with absorbent paper; placed into a glass jar, and analyzed similarly to the shells. Once standardized, the technique was applied aiming at two objectives: identification of Biomphalaria using only the shells and parasitological diagnosis for Schistosoma mansoni infection. The discrimination of the three Biomphalaria species intermediate hosts of S. mansoni only by shell has technical limit due to the scarcity of organic material. Nevertheless, it was possible to differentiate B. straminea from B. tenagophila and B. glabrata with 96% accuracy. As for the parasitological diagnosis, it was possible to differentiate infected mollusks shedding S. mansoni cercariae from the non-infected ones with 82, 5% accuracy. In conclusion, the Near Infrared Spectroscopy (NIR's) technique has proven to be an innovative and sound tool to detect infection by S. mansoni in the different species of Biomphalaria intermediate hosts.
Collapse
Affiliation(s)
- Vanessa Valladares
- Evaluation and Promotion of Environmental Health Laboratory, Instituto Oswaldo Cruz-Fiocruz, Rio de Janeiro, RJ, Brazil
| | - Célio Pasquini
- National Institute of Advanced Analytical Sciences and Technologies (INCTAA), State University of Campinas—UNICAMP / Chemistry Institute, Campinas, SP, Brazil
| | | | - Clélia Christina Mello-Silva
- Evaluation and Promotion of Environmental Health Laboratory, Instituto Oswaldo Cruz-Fiocruz, Rio de Janeiro, RJ, Brazil
| |
Collapse
|
2
|
Zhao R, Takeuchi T, Koyanagi R, Villar-Briones A, Yamada L, Sawada H, Ishikawa A, Iwanaga S, Nagai K, Che Y, Satoh N, Endo K. Phylogenetic comparisons reveal mosaic histories of larval and adult shell matrix protein deployment in pteriomorph bivalves. Sci Rep 2020; 10:22140. [PMID: 33335265 PMCID: PMC7747718 DOI: 10.1038/s41598-020-79330-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 12/01/2020] [Indexed: 11/08/2022] Open
Abstract
Molluscan shells are organo-mineral composites, in which the dominant calcium carbonate is intimately associated with an organic matrix comprised mainly of proteins and polysaccharides. However, whether the various shell matrix proteins (SMPs) date to the origin of hard skeletons in the Cambrian, or whether they represent later deployment through adaptive evolution, is still debated. In order to address this issue and to better understand the origins and evolution of biomineralization, phylogenetic analyses have been performed on the three SMP families, Von Willebrand factor type A (VWA) and chitin-binding domain-containing protein (VWA-CB dcp), chitobiase, and carbonic anhydrase (CA), which exist in both larval and adult shell proteomes in the bivalves, Crassostrea gigas and Pinctada fucata. In VWA-CB dcp and chitobiase, paralogs for larval and adult SMPs evolved before the divergence of these species. CA-SMPs have been taken as evidence for ancient origins of SMPs by their presumed indispensable function in biomineralization and ubiquitous distribution in molluscs. However, our results indicate gene duplications that gave rise to separate deployments as larval and adult CA-SMPs occurred independently in each lineage after their divergence, which is considerably more recent than hitherto assumed, supporting the "recent heritage and fast evolution" scenario for SMP evolution.
Collapse
Affiliation(s)
- Ran Zhao
- Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.
- Department of Biology, Shenzhen MSU-BIT University, 1 International University Park Road, Dayun New Town, Longgang District, Shenzhen, Guangdong Province, People's Republic of China.
| | - Takeshi Takeuchi
- Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa, 904-0495, Japan
| | - Ryo Koyanagi
- DNA Sequencing Section, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa, 904-0495, Japan
| | - Alejandro Villar-Briones
- Instrumental Analysis Section, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa, 904-0495, Japan
| | - Lixy Yamada
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Sugashima, Toba, 517-0004, Japan
| | - Hitoshi Sawada
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Sugashima, Toba, 517-0004, Japan
| | - Akito Ishikawa
- Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shunsuke Iwanaga
- Nagasaki Prefectural Institute of Fisheries, Nagasaki, Nagasaki, 851-2213, Japan
| | - Kiyohito Nagai
- Pearl Research Institute, Mikimoto Co., Ltd, Shima, Mie, 517-0403, Japan
| | - Yuqi Che
- Department of Biology, Shenzhen MSU-BIT University, 1 International University Park Road, Dayun New Town, Longgang District, Shenzhen, Guangdong Province, People's Republic of China
| | - Noriyuki Satoh
- Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa, 904-0495, Japan
| | - Kazuyoshi Endo
- Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
| |
Collapse
|
3
|
Jin C, Li JL, Liu XJ. Teosin, a novel basic shell matrix protein from Hyriopsis cumingii induces calcium carbonate polycrystal formation. Int J Biol Macromol 2020; 150:1229-1237. [PMID: 31743712 DOI: 10.1016/j.ijbiomac.2019.10.134] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 10/14/2019] [Accepted: 10/14/2019] [Indexed: 11/18/2022]
Abstract
In this study, a novel matrix protein (teosin) was isolated from Hyriopsis cumingii. Gene expression analysis showed that teosin is mainly expressed in the mantle and blood, and a hybridization signal was found in dorsal epithelial cells of the mantle pallial by in situ hybridization. Moreover, teosin expression during pearl formation indicated its participation in initial nacreous layer biomineralization, and suppressing teosin expression resulted in irregular crystal morphology and disordered arrangement in RNAi assay. In vitro crystallization assays indicated teosin could increase the size of calcite. By turning the sample stage about 15°, we got the high-resolution TEM images of the crystals' edges. This is a novel method to observe the crystal which is over 200 nm under TEM. In the control experiment group, the calcite show the character of long range order. The calcite induced by teosin were composed of nano-grains, and the polycrystal character were confirmed by EDS. These results suggested that teosin is involved in regulating crystal morphology regulation and inducing polycrystal formation during nacreous-layer formation.
Collapse
Affiliation(s)
- Can Jin
- Shaoxing University, Shaoxing 312000, China
| | - Jia-Le Li
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Shanghai Engineering Research Center of Aquaculture, Shanghai 201306, China.
| | - Xiao-Jun Liu
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China.
| |
Collapse
|
4
|
First proteomic analyses of the dorsal and ventral parts of the Sepia officinalis cuttlebone. J Proteomics 2017; 150:63-73. [DOI: 10.1016/j.jprot.2016.08.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/19/2016] [Accepted: 08/23/2016] [Indexed: 12/12/2022]
|
5
|
A honeycomb composite of mollusca shell matrix and calcium alginate. Colloids Surf B Biointerfaces 2016; 139:100-6. [DOI: 10.1016/j.colsurfb.2015.12.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 11/11/2015] [Accepted: 12/02/2015] [Indexed: 11/19/2022]
|
6
|
Kanold JM, Guichard N, Immel F, Plasseraud L, Corneillat M, Alcaraz G, Brümmer F, Marin F. Spine and test skeletal matrices of the Mediterranean sea urchin Arbacia lixula--a comparative characterization of their sugar signature. FEBS J 2015; 282:1891-905. [PMID: 25702947 DOI: 10.1111/febs.13242] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 01/19/2015] [Accepted: 02/17/2015] [Indexed: 11/27/2022]
Abstract
Calcified structures of sea urchins are biocomposite materials that comprise a minor fraction of organic macromolecules, such as proteins, glycoproteins and polysaccharides. These macromolecules are thought to collectively regulate mineral deposition during the process of calcification. When occluded, they modify the properties of the mineral. In the present study, the organic matrices (both soluble and insoluble in acetic acid) of spines and tests from the Mediterranean black sea urchin Arbacia lixula were extracted and characterized, in order to determine whether they exhibit similar biochemical signatures. Bulk characterizations were performed by mono-dimensional SDS/PAGE, FT-IR spectroscopy, and an in vitro crystallization assay. We concentrated our efforts on characterization of the sugar moieties. To this end, we determined the monosaccharide content of the soluble and insoluble organic matrices of A. lixula spines and tests by HPAE-PAD, together with their respective lectin-binding profiles via enzyme-linked lectin assay. Finally, we performed in situ localization of N-acetyl glucosamine-containing saccharides on spines and tests using gold-conjugated wheatgerm agglutinin. Our data show that the test and spine matrices exhibit different biochemical signatures with regard to their saccharidic fraction, suggesting that future studies should analyse the regulation of mineral deposition by the matrix in these two mineralized structures in detail. This study re-emphasizes the importance of non-protein moieties, i.e. sugars, in calcium carbonate systems, and highlights the need to clearly identify their function in the biomineralization process.
Collapse
Affiliation(s)
- Julia M Kanold
- Department of Zoology, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Germany
| | - Nathalie Guichard
- UMR CNRS 6282 Biogéosciences, Bâtiment des Sciences Gabriel, Université de Bourgogne, Dijon, France
| | - Françoise Immel
- UMR CNRS 6282 Biogéosciences, Bâtiment des Sciences Gabriel, Université de Bourgogne, Dijon, France
| | - Laurent Plasseraud
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302, Faculté des Sciences Mirande, Université de Bourgogne, Dijon, France
| | - Marion Corneillat
- Unité Propre Soutien de Programme PROXISS, Département Agronomie Environnement AgroSupDijon, Dijon Cedex, France
| | - Gérard Alcaraz
- Unité Propre Soutien de Programme PROXISS, Département Agronomie Environnement AgroSupDijon, Dijon Cedex, France
| | - Franz Brümmer
- Department of Zoology, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Germany
| | - Frédéric Marin
- UMR CNRS 6282 Biogéosciences, Bâtiment des Sciences Gabriel, Université de Bourgogne, Dijon, France
| |
Collapse
|
7
|
Álvarez Nogal R, Molist García P. The outer mantle epithelium ofHaliotis tuberculata(Gastropoda Haliotidae): an ultrastructural and histochemical study using lectins. ACTA ZOOL-STOCKHOLM 2014. [DOI: 10.1111/azo.12090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rafael Álvarez Nogal
- Department of Molecular Biology (Celular Biology); Campus Vergaza; University of León; León 24071 Spain
| | - Pilar Molist García
- Departament of Functional Biology and Health Sciences; As Lagoas Marcosende; University of Vigo; Vigo 36310 Spain
| |
Collapse
|
8
|
Miyamoto H, Endo H, Hashimoto N, limura K, Isowa Y, Kinoshita S, Kotaki T, Masaoka T, Miki T, Nakayama S, Nogawa C, Notazawa A, Ohmori F, Sarashina I, Suzuki M, Takagi R, Takahashi J, Takeuchi T, Yokoo N, Satoh N, Toyohara H, Miyashita T, Wada H, Samata T, Endo K, Nagasawa H, Asakawa S, Watabe S. The Diversity of Shell Matrix Proteins: Genome-Wide Investigation of the Pearl Oyster, Pinctada fucata. Zoolog Sci 2013; 30:801-16. [DOI: 10.2108/zsj.30.801] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Hiroshi Miyamoto
- Department of Genetic Engineering, Faculty of Biology-Oriented Science and Technology, Kinki University, 930 Nishimitani, Kinokawa, Wakayama 649-6493, Japan
| | - Hirotoshi Endo
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Naoki Hashimoto
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Kurin limura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Yukinobu Isowa
- Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shigeharu Kinoshita
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Tomohiro Kotaki
- Laboratory of Cell Biology, The Graduate School of Environmental Health Sciences, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Tetsuji Masaoka
- National Research Institute of Aquaculture, Fisheries Research Agency, 422-1, Hiruta, Tamaki, Mie 519-0423, Japan
| | - Takumi Miki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Seiji Nakayama
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Chihiro Nogawa
- Laboratory of Cell Biology, The Graduate School of Environmental Health Sciences, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Atsuto Notazawa
- Laboratory of Cell Biology, The Graduate School of Environmental Health Sciences, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Fumito Ohmori
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Isao Sarashina
- Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Michio Suzuki
- Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ryousuke Takagi
- Department of Genetic Engineering, Faculty of Biology-Oriented Science and Technology, Kinki University, 930 Nishimitani, Kinokawa, Wakayama 649-6493, Japan
| | - Jun Takahashi
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Takeshi Takeuchi
- Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Naoki Yokoo
- Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Nori Satoh
- Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Haruhiko Toyohara
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Tomoyuki Miyashita
- Department of Genetic Engineering, Faculty of Biology-Oriented Science and Technology, Kinki University, 930 Nishimitani, Kinokawa, Wakayama 649-6493, Japan
| | - Hiroshi Wada
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Tetsuro Samata
- Laboratory of Cell Biology, The Graduate School of Environmental Health Sciences, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Kazuyoshi Endo
- Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiromichi Nagasawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Shuichi Asakawa
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Shugo Watabe
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| |
Collapse
|
9
|
Abstract
In nature, mollusk shells have a role in protecting the soft body of the mollusk from predators and from the external environment, and the shells consist mainly of calcium carbonate and small amounts of organic matrices. Organic matrices in mollusk shells are thought to play key roles in shell formation. However, enough information has not been accumulated so far. High toughness and stiffness have been focused on as being adaptable to the development of organic–inorganic hybrid materials. Because mollusks can produce elaborate microstructures containing organic matrices under ambient conditions, the investigation of shell formation is expected to lead to the development of new inorganic–organic hybrid materials for various applications. In this review paper, we summarize the structures of mollusk shells and their process of formation, together with the analysis of various organic matrices related to shell calcification.
Collapse
Affiliation(s)
- Michio Suzuki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hiromichi Nagasawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| |
Collapse
|
10
|
Pavat C, Zanella-Cléon I, Becchi M, Medakovic D, Luquet G, Guichard N, Alcaraz G, Dommergues JL, Serpentini A, Lebel JM, Marin F. The shell matrix of the pulmonate land snail Helix aspersa maxima. Comp Biochem Physiol B Biochem Mol Biol 2012; 161:303-14. [DOI: 10.1016/j.cbpb.2011.12.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 12/07/2011] [Accepted: 12/10/2011] [Indexed: 10/14/2022]
|
11
|
Trinkler N, Labonne M, Marin F, Jolivet A, Bohn M, Poulain C, Bardeau JF, Paillard C. Clam shell repair from the brown ring disease: a study of the organic matrix using confocal Raman micro-spectrometry and WDS microprobe. Anal Bioanal Chem 2010; 396:555-67. [PMID: 19838689 DOI: 10.1007/s00216-009-3114-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2009] [Revised: 08/27/2009] [Accepted: 08/27/2009] [Indexed: 02/05/2023]
Abstract
Since 1987, the Manila clam Ruditapes philippinarum has been regularly affected by the brown ring disease (BRD), an epizootic caused by the bacterium Vibrio tapetis. This disease is characterized by the development of a brown deposit on the inner face of valves. While most of the clams die from the BRD infection, some of them are able to recover by mineralizing a new repair shell layer, which covers the brown deposit by a process of encapsulation. The purpose of this work was to study the organic matrix of the shells of Manila clams in the inner shell layer before, during and after the brown deposit and during the shell repair process by confocal Raman micro-spectrometry and wavelength dispersive spectrometry (WDS) microprobe. In addition, the organic matrix of the repaired shell layer was extracted and quantified, by using standard biochemical shell matrix extractions protocols. The brown deposit exhibited high luminescence intensity in Raman spectra, and an increase of S, C, Sr (forming two peaks) and a decrease of Ca, Na concentrations (% w/w), using WDS microprobe mapping and cross-sectional transects. The signature of these trace elements was similar to that recorded on periostracal lamina (% w/w). The high S concentration likely corresponds to the presence of a high amount of sulfated organic compounds. Interestingly, on cross-sectional transects, before the brown deposit, a thin layer of the shell showed also a high luminescence, which may suggest that this layer is modified by bacteria. After the brown deposit, at the beginning of the shell repair process, the luminescence and the S concentration remain high, before declining the level found in non-BRD-affected shells. Quantification of the organic matrix shows that the shell repair layer zone is significantly different from non-BRD-affected shell layer, in particular with a much higher amount of insoluble matrix.
Collapse
Affiliation(s)
- Nowenn Trinkler
- IUEM, LEMAR, UMR CNRS/UBO/IRD 6539, Technopole Brest Iroise, 29280 Plouzané, France
| | | | | | | | | | | | | | | |
Collapse
|
12
|
de Paula SM, Silveira M. Studies on molluscan shells: Contributions from microscopic and analytical methods. Micron 2009; 40:669-90. [DOI: 10.1016/j.micron.2009.05.006] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2007] [Revised: 05/07/2009] [Accepted: 05/10/2009] [Indexed: 10/20/2022]
|
13
|
Marie B, Marin F, Marie A, Bédouet L, Dubost L, Alcaraz G, Milet C, Luquet G. Evolution of nacre: biochemistry and proteomics of the shell organic matrix of the cephalopod Nautilus macromphalus. Chembiochem 2009; 10:1495-506. [PMID: 19472248 DOI: 10.1002/cbic.200900009] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In mollusks, one of the most widely studied shell textures is nacre, the lustrous aragonitic layer that constitutes the internal components of the shells of several bivalves, a few gastropods,and one cephalopod: the nautilus. Nacre contains a minor organic fraction, which displays a wide range of functions in relation to the biomineralization process. Here, we have biochemically characterized the nacre matrix of the cephalopod Nautilus macromphalus. The acid-soluble matrix contains a mixture of polydisperse and discrete proteins and glycoproteins, which interact with the formation of calcite crystals. In addition, a few bind calcium ions. Furthermore, we have used a proteomic approach,which was applied to the acetic acid-soluble and -insoluble shell matrices, as well as to spots obtained after 2D gel electrophoresis. Our data demonstrate that the insoluble and soluble matrices, although different in their bulk monosaccharide and amino acid compositions, contain numerous shared peptides. Strikingly, most of the obtained partial sequences are entirely new. A few only partly match with bivalvian nacre proteins.Our findings have implications for knowledge of the long-term evolution of molluskan nacre matrices.
Collapse
Affiliation(s)
- Benjamin Marie
- UMR CNRS 5561 Biogéosciences, Université de Bourgogne, 6 Bd Gabriel, 21000 Dijon, France.
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Arias JL, Fernández MS. Polysaccharides and proteoglycans in calcium carbonate-based biomineralization. Chem Rev 2008; 108:4475-82. [PMID: 18652513 DOI: 10.1021/cr078269p] [Citation(s) in RCA: 157] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- José L Arias
- Faculty of Veterinary and Animal Sciences, and Center for Advanced Interdisciplinary Research in Materials (CIMAT), Universidad de Chile, Casilla 2 Correo 15, Santiago, Chile.
| | | |
Collapse
|
15
|
Marie B, Luquet G, Pais De Barros JP, Guichard N, Morel S, Alcaraz G, Bollache L, Marin F. The shell matrix of the freshwater mussel Unio pictorum (Paleoheterodonta, Unionoida). Involvement of acidic polysaccharides from glycoproteins in nacre mineralization. FEBS J 2007; 274:2933-45. [PMID: 17488282 DOI: 10.1111/j.1742-4658.2007.05825.x] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Among molluscs, the shell biomineralization process is controlled by a set of extracellular macromolecular components secreted by the calcifying mantle. In spite of several studies, these components are mainly known in bivalves from only few members of pteriomorph groups. In the present case, we investigated the biochemical properties of the aragonitic shell of the freshwater bivalve Unio pictorum (Paleoheterodonta, Unionoida). Analysis of the amino acid composition reveals a high amount of glycine, aspartate and alanine in the acid-soluble extract, whereas the acid-insoluble one is rich in alanine and glycine. Monosaccharidic analysis indicates that the insoluble matrix comprises a high amount of glucosamine. Furthermore, a high ratio of the carbohydrates of the soluble matrix is sulfated. Electrophoretic analysis of the acid-soluble matrix revealed discrete bands. Stains-All, Alcian Blue, periodic acid/Schiff and autoradiography with (45)Ca after electrophoretic separation revealed three major polyanionic calcium-binding glycoproteins, which exhibit an apparent molecular mass of 95, 50 and 29 kDa, respectively. Two-dimensional gel electrophoresis shows that these bands, provisionally named P95, P50 and P29, are composed of numerous isoforms, the majority of which have acidic isoelectric points. Chemical deglycosylation of the matrix with trifluoromethanesulfonic acid induces a drastic shift of both the apparent molecular mass and the isoelectric point of these matrix components. This treatment induces also a modification of the shape of CaCO(3) crystals grown in vitro and a loss of the calcium-binding ability of two of the main matrix proteins (P95 and P50). Our findings strongly suggest that post-translational modifications display important functions in mollusc shell calcification.
Collapse
Affiliation(s)
- Benjamin Marie
- UMR CNRS 5561, Biogéosciences, Université de Bourgogne, 6 boulevard Gabriel, F-21000 Dijon, France.
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Marin F, Luquet G, Marie B, Medakovic D. Molluscan shell proteins: primary structure, origin, and evolution. Curr Top Dev Biol 2007; 80:209-76. [PMID: 17950376 DOI: 10.1016/s0070-2153(07)80006-8] [Citation(s) in RCA: 292] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
In the last few years, the field of molluscan biomineralization has known a tremendous mutation, regarding fundamental concepts on biomineralization regulation as well as regarding the methods of investigation. The most recent advances deal more particularly with the structure of shell biominerals at nanoscale and the identification of an increasing number of shell matrix protein components. Although the matrix is quantitatively a minor constituent in the shell of mollusks (less than 5% w/w), it is, however, the major component that controls different aspects of the shell formation processes: synthesis of transient amorphous minerals and evolution to crystalline phases, choice of the calcium carbonate polymorph (calcite vs aragonite), organization of crystallites in complex shell textures (microstructures). Until recently, the classical paradigm in molluscan shell biomineralization was to consider that the control of shell synthesis was performed primarily by two antagonistic mechanisms: crystal nucleation and growth inhibition. New concepts and emerging models try now to translate a more complex reality, which is remarkably illustrated by the wide variety of shell proteins, characterized since the mid-1990s, and described in this chapter. These proteins cover a broad spectrum of pI, from very acidic to very basic. The primary structure of a number of them is composed of different modules, suggesting that these proteins are multifunctional. Some of them exhibit enzymatic activities. Others may be involved in cell signaling. The oldness of shell proteins is discussed, in relation with the Cambrian appearance of the mollusks as a mineralizing phylum and with the Phanerozoic evolution of this group. Nowadays, the extracellular calcifying shell matrix appears as a whole integrated system, which regulates protein-mineral and protein-protein interactions as well as feedback interactions between the biominerals and the calcifying epithelium that synthesized them. Consequently, the molluscan shell matrix may be a source of bioactive molecules that would offer interesting perspectives in biomaterials and biomedical fields.
Collapse
Affiliation(s)
- Frédéric Marin
- UMR CNRS 5561 Biogéosciences, Université de Bourgogne 6 Boulevard Gabriel, 21000 DIJON, France
| | | | | | | |
Collapse
|
17
|
Zhang C, Zhang R. Matrix proteins in the outer shells of molluscs. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2006; 8:572-86. [PMID: 16614870 DOI: 10.1007/s10126-005-6029-6] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2005] [Accepted: 01/18/2006] [Indexed: 05/08/2023]
Abstract
The shells of molluscs are composed mainly of calcium carbonate crystals, with small amounts of matrix proteins. For more than 50 years, they have attracted attention for their unique mechanical and biological properties. Only recently, however, have researchers begun to realize that it is the matrix proteins that control the formation of calcium carbonate crystals and play key roles in their extraordinary properties, despite the fact that matrix proteins comprise less than 5% of the shell weight. This article reviews the matrix proteins identified to date from the shells of molluscs, their structural characteristics, and their roles in shell formation. Some suggestions are given for further investigation based on the summary and analysis.
Collapse
Affiliation(s)
- Cen Zhang
- Institute of Marine Biotechnology, Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing, 100084, China
| | | |
Collapse
|
18
|
Yano M, Nagai K, Morimoto K, Miyamoto H. Shematrin: A family of glycine-rich structural proteins in the shell of the pearl oyster Pinctada fucata. Comp Biochem Physiol B Biochem Mol Biol 2006; 144:254-62. [PMID: 16626988 DOI: 10.1016/j.cbpb.2006.03.004] [Citation(s) in RCA: 126] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2006] [Revised: 03/10/2006] [Accepted: 03/10/2006] [Indexed: 11/20/2022]
Abstract
Random sequencing of molecules from a cDNA library constructed from mantle mRNA of the pearl oyster Pinctada fucata was used to obtain information on organic matrix proteins in the shell. In the determined sequences, we identified 7 distinct cDNAs encoding similar glycine-rich domains. Complete sequence analysis of these cDNAs showed that the predicted sequences of the proteins, which we named shematrins, possessed similar domains comprising repeat sequences of two or more glycines, followed by a hydrophobic amino acid. In addition, in shematrin-1, -2 and -3, a repeat domain designated as XGnX (where X is a hydrophobic amino acid) was conserved. It is of further note that all the shematrin proteins have RKKKY, RRKKY or RRRKY as their C-terminal sequence. According to northern blot analysis, all shematrins are exclusively expressed in the mantle, and particularly in the edge region of the mantle; furthermore, peptide fragments similar to shematrin-1 and -2 were detected in the prismatic layer of shells by MALDI-TOF/TOF MS analysis. These findings suggest that many of shematrins are synthesized in the mantle edge and secreted into the prismatic layer of the shell, where the protein family is thought to provide a framework for calcification.
Collapse
Affiliation(s)
- Masato Yano
- Wakayama Prefecture Collaboration of Regional Entities for the Advancement of Technological Excellence, Japan Science and Technology Agency, Japan
| | | | | | | |
Collapse
|
19
|
Dauphin Y. Structure and composition of the septal nacreous layer of Nautilus macromphalus L. (Mollusca, Cephalopoda). ZOOLOGY 2006; 109:85-95. [PMID: 16384690 DOI: 10.1016/j.zool.2005.08.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2005] [Revised: 08/07/2005] [Accepted: 08/24/2005] [Indexed: 11/20/2022]
Abstract
The nacreous layer of Mollusca is the best-known aragonitic structure and is the usual model for biomineralization. However, data are based on less than 10 species. In situ observations of the septal nacreous layer of the cephalopod Nautilus shell has revealed that the tablets are composed of acicular laths. These laths are composed of round nanograins surrounded by an organic sheet. No hole has been observed in the decalcified interlamellar membranes. A set of combined analytical data shows that the organic matrices extracted from the nacreous layer are glycoproteins. In both soluble and insoluble matrices, S amino acids are rare and the soluble organic matrices have a higher sulfated sugar content than the insoluble matrices. It is possible that the observed differences in the structure and composition of the nacreous layers of the outer wall and septa of the Nautilus shell have a dual origin: evolution and functional adaptation. However, we have no appropriate data as yet to answer this question.
Collapse
Affiliation(s)
- Yannicke Dauphin
- UMR 8148 IDES, Bat. 504, Université Paris XI-Orsay, 91405 Orsay Cedex, France.
| |
Collapse
|
20
|
Sarashina I, Yamaguchi H, Haga T, Iijima M, Chiba S, Endo K. Molecular Evolution and Functionally Important Structures of Molluscan Dermatopontin: Implications for the Origins of Molluscan Shell Matrix Proteins. J Mol Evol 2006; 62:307-18. [PMID: 16474978 DOI: 10.1007/s00239-005-0095-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2005] [Accepted: 09/21/2005] [Indexed: 11/30/2022]
Abstract
A major shell matrix protein originally obtained from a freshwater snail is a molluscan homologue of Dermatopontins, a group of Metazoan proteins also called TRAMP (tyrosine-rich acidic matrix protein). We sequenced and identified 14 molluscan homologues of Dermatopontin from eight snail species belonging to the order Basommatophora and Stylommatophora. The bassommatophoran Dermatopontins fell into three types, one is suggested to be a shell matrix protein and the others are proteins having more general functions based on gene expression analyses. N-glycosylation is inferred to be important for the function involved in shell calcification, because potential N-glycosylation sites were found exclusively in the Dermatopontins considered as shell matrix proteins. The stylommatophoran Dermatopontins fell into two types, also suggested to comprise a shell matrix protein and a protein having a more general function. Phylogenetic analyses using maximum likelihood and Bayesian methods revealed that gene duplication events occurred independently in both basommatophoran and stylommatophoran lineages. These results suggest that the dermatopontin genes were co-opted for molluscan calcification at least twice independently after the divergence of basommatophoran and stylommatophoran lineages, or more recently than we have expected.
Collapse
Affiliation(s)
- Isao Sarashina
- Department of Earth Evolution Sciences, Graduate School of Life and Environmental Science, University of Tsukuba, Japan
| | | | | | | | | | | |
Collapse
|
21
|
Marin F, Amons R, Guichard N, Stigter M, Hecker A, Luquet G, Layrolle P, Alcaraz G, Riondet C, Westbroek P. Caspartin and Calprismin, Two Proteins of the Shell Calcitic Prisms of the Mediterranean Fan Mussel Pinna nobilis. J Biol Chem 2005; 280:33895-908. [PMID: 15994301 DOI: 10.1074/jbc.m506526200] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We used the combination of preparative electrophoresis and immunological detection to isolate two new proteins from the shell calcitic prisms of Pinna nobilis, the Mediterranean fan mussel. The amino acid composition of these proteins was determined. Both proteins are soluble, intracrystalline, and acidic. The 38-kDa protein is glycosylated; the 17-kDa one is not. Ala, Asx, Thr, and Pro represent the dominant residues of the 38-kDa protein, named calprismin. An N-terminal sequence was obtained from calprismin. This sequence, which comprises a pattern of 4 cysteine residues, is not related to any known protein. The second protein, named caspartin, exhibits an unusual amino acid composition, since Asx constitutes by far the main amino acid residue. Preliminary sequencing surprisingly suggests that the first 75 N-terminal residues are all Asp. Caspartin self-aggregates spontaneously into multimers. In vitro tests show that it inhibits the precipitation of calcium carbonate. Furthermore, it strongly interferes with the growth of calcite crystals. A polyclonal antiserum raised against caspartin was used to localize this protein in the shell by immunogold. The immunolocalization demonstrates that caspartin is distributed within the prisms and makes a continuous film at the interface between the prisms and the surrounding insoluble sheets. Our finding emphasizes the prominent role of aspartic acid-rich proteins for the building of calcitic prisms among molluscs.
Collapse
Affiliation(s)
- Frédéric Marin
- UMR CNRS 5561 "Biogéosciences," Université de Bourgogne, 6 Boulevard Gabriel, Dijon F-21000, France.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Tong H, Ma W, Wang L, Wan P, Hu J, Cao L. Control over the crystal phase, shape, size and aggregation of calcium carbonate via a L-aspartic acid inducing process. Biomaterials 2004; 25:3923-9. [PMID: 15020169 DOI: 10.1016/j.biomaterials.2003.10.038] [Citation(s) in RCA: 185] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2003] [Accepted: 10/13/2003] [Indexed: 11/19/2022]
Abstract
The acidic amino acid, such as aspartic acid (l-Asp), and glutamic acid are the primary active molecules of the glycoprotein on the organic/inorganic interface of biomineralized tissue. In this study, aspartic acid was used as the organic template in inducing the nucleation and growth of calcium carbonate. With the analysis of X-ray diffraction we investigated the relationship between the l-Asp concentration and the precipitation phase crystal structure of calcium carbonate. SEM and TEM were employed in the analysis of the morphological characteristic of the precipitation and the aggregation of the nanoscale porous phase. In order to get the direct evidence of the interaction between Ca2+ and l-Asp, the technique of QCM was used in the investigation of the coordinate interaction of Ca2+/l-Asp. As the results have shown, l-Asp alone is adequate to switch the transformation between calcite and vaterite, and neither soluble organic additions nor metal ions are needed. Meanwhile, the morphology, size and aggregative way of the deposition are also mediated with change of l-Asp concentration. To interpret the cause of the hierarchic structure range from nanoscale to micron-scale and the formation of the porous spheres of vaterite, an assumption of limited-fusion was proposed from the view of the small biomolecules polarity that can control over the growth of the crystals and the aggregation of the micro crystals. The conclusion also provide a new material synthesize strategy.
Collapse
Affiliation(s)
- Hua Tong
- College of Molecular Science and Chemistry, Wuhan Univeristy, Wuhan Hubei 430072, PR China.
| | | | | | | | | | | |
Collapse
|
23
|
Arias JL, Neira-Carrillo A, Arias JI, Escobar C, Bodero M, David M, Fernández MS. Sulfated polymers in biological mineralization: a plausible source for bio-inspired engineering. ACTA ACUST UNITED AC 2004. [DOI: 10.1039/b401396d] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
24
|
Marxen JC, Nimtz M, Becker W, Mann K. The major soluble 19.6 kDa protein of the organic shell matrix of the freshwater snail Biomphalaria glabrata is an N-glycosylated dermatopontin. BIOCHIMICA ET BIOPHYSICA ACTA 2003; 1650:92-8. [PMID: 12922172 DOI: 10.1016/s1570-9639(03)00203-6] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The major Biomphalaria glabrata shell matrix protein of 19.6 kDa was isolated by preparative electrophoresis and sequenced. The sequence of 148 amino acids showed 32% sequence identity to mammalian dermatopontin sequences and 34-37% identity to two invertebrate dermatopontins described previously. A unique feature of the shell matrix dermatopontin was the presence of a single N-glycosylation consensus sequence, the asparagine of which was completely modified with a pentasaccharide. Sequence analysis of this short N-glycan by mass spectrometry and carbohydrate composition analysis indicated that it was the ubiquitous N-glycan core oligosaccharide with the exception that the terminal mannoses were 3-O-methylated. Dermatopontin is widespread in mammalian extracellular matrices, including the matrix of biominerals such as bone and teeth. Its occurrence in an invertebrate biomineral indicates that such phylogenetically distant biomineral-forming systems as vertebrate bone and mollusk shell share components which have undergone surprisingly few changes during a long evolution.
Collapse
Affiliation(s)
- Julia C Marxen
- Zoologisches Institut und Museum der Universität Hamburg, D-20146 Hamburg, Germany
| | | | | | | |
Collapse
|
25
|
Dauphin Y. Soluble organic matrices of the calcitic prismatic shell layers of two Pteriomorphid bivalves. Pinna nobilis and Pinctada margaritifera. J Biol Chem 2003; 278:15168-77. [PMID: 12576478 DOI: 10.1074/jbc.m204375200] [Citation(s) in RCA: 117] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The calcitic prisms of the shells of two bivalves, Pinna and Pinctada, are considered simple prisms according to some morphological and mineralogical characteristics. Scanning electron microscopic and atomic force microscopic studies show that the microstructures and nanostructures of these two shells are different. Pinna prisms are monocrystalline, whereas Pinctada prisms are not. Moreover, intraprismatic membranes are present only in the Pinctada prisms. The soluble organic matrices extracted from these prisms are acidic, but their bulk compositions differ. Ultraviolet and infrared spectrometries, fluorescence, high pressure liquid chromatography, and electrophoresis show that the sugar-protein ratios and the molecular weights are different. Sulfur is mainly associated with acidic sulfated sugars, not with amino acids, and the role of acidic sulfated sugars is still underestimated. Thus, the simple prism concept is not a relevant model for the biomineralization processes in the calcitic prismatic layer of mollusk shells.
Collapse
Affiliation(s)
- Yannicke Dauphin
- Laboratoire de Paléontologie, FRE 2566, Université Paris XI-Orsay, F-91405 Orsay, France.
| |
Collapse
|
26
|
Dauphin Y. Comparison of the soluble matrices of the calcitic prismatic layer of Pinna nobilis (Mollusca, Bivalvia, Pteriomorpha). Comp Biochem Physiol A Mol Integr Physiol 2002; 132:577-90. [PMID: 12044767 DOI: 10.1016/s1095-6433(02)00099-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The calcitic prisms of the outer layer of the shell of Pinna nobilis, surrounded by thick organic walls, contain a soluble intracrystalline matrix. The structure and composition of the outer interprismatic walls are not well known. The current viewpoint is they are composed of an insoluble matrix. Another thick organic structure, the interlamellar sheet of the nacreous layer, is composed of insoluble and soluble matrices. The composition of two sets of soluble organic matrices from the calcitic layer of Pinna nobilis, extracted with and without the organic walls are compared. According to the various analyses (SEM and AFM, UV and FTIR spectrometry, HPLC, electrophoreses, XANES), the main characteristics of the two matrices are similar, but not identical. Thus, the organic walls contain soluble components. However, the three-layered structure of the interlamellar sheet of the nacreous layer has not been observed.
Collapse
Affiliation(s)
- Y Dauphin
- UMR 8616, Laboratoire de Paléontologie, bât. 504, Université Paris XI-Orsay, F-91405 Orsay Cedex, France.
| |
Collapse
|
27
|
Abstract
The numerous proteins occluded within the molluscan shell play a key role in the control of the mineralization process. Although extensively studied, these proteins are still poorly known, mainly because they are difficult to fractionate. In the present paper, we present, for the first time, a simple combined strategy for separating successfully large amounts of molluscan shell proteins. Since shell proteins do not absorb at 280 nm, our approach is based on the "blind" separation of these proteins by a preparative denaturing electrophoresis. They are subsequently detected on dot-blot with polyclonal antibodies raised against the unfractionated soluble matrix. In the present case, this approach allows one to collect enough purified proteins to obtain amino-acid composition as well as N-terminal sequences, and to perform in vitro tests and glycosylation studies. Furthermore, this method permits one to raise polyclonal antibodies against the isolated proteins.
Collapse
Affiliation(s)
- F Marin
- Gaia Science Center, LIC, Gorlaeus Laboratoria, Einsteinweg 55, Leiden, 2300 RA, The Netherlands.
| | | | | |
Collapse
|
28
|
Sud D, Doumenc D, Lopez E, Milet C. Role of water-soluble matrix fraction, extracted from the nacre of Pinctada maxima, in the regulation of cell activity in abalone mantle cell culture (Haliotis tuberculata). Tissue Cell 2001; 33:154-60. [PMID: 11392668 DOI: 10.1054/tice.2000.0166] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In mollusks, the mantle is responsible for the secretion of an organic matrix that mineralizes to form the shell. A model of mantle cell culture has been established from the nacreous gastropod Haliotis tuberculata. First, viability of cells, quantified by the MTT (3-(4,5-dimethylthiazol-2yl)-2,5-diphenyl tetrazolium bromide) reduction assay, was monitored in order to determine a cell density and a time-culturing period in order to investigate biomineralization processes in vitro. During the first 11 days of culture, an increase of MTT response demonstrated an activation of cultured cells mitochondrial activity as confirmed by the total protein content assay. The effect of a water-soluble extract from the organic matrix of Pinctada maxima (WSM) was tested on this cell culture system for 11 days-period exposure. WSM reduced the global viability of mantle cells in a dose-dependent way which corresponded to a cell death. Alkaline phosphatase activity normalized to total protein content increased in the presence of WSM. This increase may be due to an activation of cells and a selection of one (or a few) cell type(s). Further investigations will help us to determine this selectivity issue.
Collapse
Affiliation(s)
- D Sud
- Muséum National d'Histoire Naturelle, Laboratoire de Biologie des Invertébres Marins et Malacologie, Paris, France.
| | | | | | | |
Collapse
|
29
|
Bédouet L, Schuller MJ, Marin F, Milet C, Lopez E, Giraud M. Soluble proteins of the nacre of the giant oyster Pinctada maxima and of the abalone Haliotis tuberculata: extraction and partial analysis of nacre proteins. Comp Biochem Physiol B Biochem Mol Biol 2001; 128:389-400. [PMID: 11250534 DOI: 10.1016/s1096-4959(00)00337-7] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Several proteins from nacre of the oyster Pinctada maxima and the abalone Haliotis tuberculata were extracted and partly characterized. Proteins dispersed in aragonite were solubilized during demineralization with acetic acid whereas proteins adsorbed on conchiolin were extracted with sodium dodecyl sulfate and beta-mercaptoethanol. The matrix of Pinctada maxima nacre is composed of one main protein with an apparent molecular weight of 20 kDa (p20). This protein was found in the acetic acid soluble fraction of nacre, as well as in the Laemmli-solubilized extract of conchiolin. In addition, the p20 solubilized with acetic acid can form oligomers made of 6 monomers linked together by disulfide bridges. The first N-terminal 21 amino acids of p20 were determined and no homology with known proteins was found. In Haliotis tuberculata nacre, 5 main proteins were solubilized during demineralization and 3 glycoproteins were detected. Stains-all and Alcian blue staining revealed polyanionic proteins in the extracts isolated from Pinctada maxima and Haliotis tuberculata nacre.
Collapse
Affiliation(s)
- L Bédouet
- Station de Biologie Marine, MNHN, BP 225, 29 182 Concarneau cedex, France
| | | | | | | | | | | |
Collapse
|
30
|
Hasse B, Ehrenberg H, Marxen JC, Becker W, Epple M. Calcium carbonate modifications in the mineralized shell of the freshwater snail Biomphalaria glabrata. Chemistry 2000; 6:3679-85. [PMID: 11073237 DOI: 10.1002/1521-3765(20001016)6:20<3679::aid-chem3679>3.0.co;2-#] [Citation(s) in RCA: 153] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The mineralized shell (consisting of calcium carbonate) of the tropical freshwater snail Biomphalaria glabrata was investigated with high resolution synchrotron X-ray powder diffractometry and X-ray absorption spectroscopy (EXAFS). Parts from different locations of the snail shell were taken from animals of different age grown under various keeping conditions. Additionally, eggs with ages of 60, 72, 120, and 140 hours were examined. Traces of aragonite were found as first crystalline phase in 120 h old eggs, however, Ca K-edge EXAFS indicated the presence of aragonitic structures already in the X-ray amorphous sample of 72 h age. The main component of the shell of adult animals was aragonite in all cases, but in some cases minor amounts of vaterite (below 1.5%) are formed. The content of vaterite is generally low in the oldest part of the shell (the center) and increases towards the mineralizing zone (the shell margin). In juvenile snails, almost no vaterite was detectable in any part of the shell.
Collapse
Affiliation(s)
- B Hasse
- Solid State Chemistry, Faculty of Chemistry, University of Bochum, Germany
| | | | | | | | | |
Collapse
|
31
|
Marxen JC, Becker W. Calcium binding constituents of the organic shell matrix from the freshwater snail Biomphalaria glabrata. Comp Biochem Physiol B Biochem Mol Biol 2000; 127:235-42. [PMID: 11079377 DOI: 10.1016/s0305-0491(00)00261-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Ca2+ binding of an EDTA-free water-soluble (SM) and -insoluble (IM) organic matrix of the freshwater snail Biomphalaria glabrata was investigated, using a 45Ca2+ autoradiography after SDS-electrophoretical separation and a calcium binding assay. Electrophoresis of the SM showed a considerable amount of Alcian blue and Stains all positive material, regarded as glycosaminoglycans (GAGs) or proteoglycans (PGs). This part of the SM was slightly positive after 45Ca2+ autoradiography at pH 6.8. The Ca2+ binding increased, raising the pH to 7.4 and 8.0 and was especially strong when simulating the real conditions of the extrapallial space with a carbonate buffer of pH 7.4. The Ca2+ binding assay of the IM showed the same pH-dependency that was observed in the SM. The titration of the IM with Ca2+ at pH 8.0 lead to a dissociation constant of 7.5 x 10(-5) M. While Mg2+ displaced 45Ca2+ in the same way as nonradioactive Ca2+, an approximately 400-fold amount of Na+ was necessary to reduce the binding of 45Ca2+ to 50%. The Ca2+ binding of the organic matrix from the B. glabrata shell appears to be a process of low specificity, medium affinity and high pH-dependency. Apparently, acidic carbohydrate-rich PGs are the only calcium binding constituents of the organic shell matrix.
Collapse
Affiliation(s)
- J C Marxen
- Department of Zoology, University of Hamburg, Germany.
| | | |
Collapse
|
32
|
Becker W, Marxen J, Epple M, Reelsen O. Influence of microgravity on crystal formation in biomineralization. J Appl Physiol (1985) 2000; 89:1601-7. [PMID: 11007601 DOI: 10.1152/jappl.2000.89.4.1601] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Biomineralized tissues are widespread in animals. They are essential elements in skeletons and in statocysts. The function of both can only be understood with respect to gravitational force, which has always been present. Therefore, it is not astonishing to identify microgravity as a factor influencing biomineralization, normally resulting in the reduction of biomineralized materials. All known biominerals are composite materials, in which the organic matrix and the inorganic materials, organized in crystals, interact. If, during remodeling and turnover processes under microgravity, a defective organization of these crystals occurs, a reduction in biomineralized materials could be the result. To understand the influence of microgravity on the formation of biocrystals, we studied the shell-building process of the snail Biomphalaria glabrata as a model system. We show that, under microgravity (space shuttle flights STS-89 and STS-90), shell material is built in a regular way in both adult snails and snail embryos during the beginning of shell development. Microgravity does not influence crystal formation. Because gravity has constantly influenced evolution, the organization of biominerals with densities near 3 must have gained independence from gravitational forces, possibly early in evolution.
Collapse
Affiliation(s)
- W Becker
- Zoological Institute and Museum, University Hamburg, D-20146 Hamburg, Germany.
| | | | | | | |
Collapse
|
33
|
Marin F, Corstjens P, de Gaulejac B, de Vrind-De Jong E, Westbroek P. Mucins and molluscan calcification. Molecular characterization of mucoperlin, a novel mucin-like protein from the nacreous shell layer of the fan mussel Pinna nobilis (Bivalvia, pteriomorphia). J Biol Chem 2000; 275:20667-75. [PMID: 10770949 DOI: 10.1074/jbc.m003006200] [Citation(s) in RCA: 144] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A cDNA expression library constructed from mantle tissue mRNA of the Mediterranean fan mussel Pinna nobilis was screened with antibodies raised against the acetic acid-soluble shell matrix of the same species. This resulted in the isolation of a 2138-base pair cDNA, containing 13 tandem repeats of 93 base pairs. The deduced protein has a molecular mass of 66.7 kDa and a isoelectric point of 4.8. This protein, which is enriched in serine and proline residues, was overexpressed, purified, and used for producing polyclonal antibodies. Immunological in situ and in vitro tests showed that the protein is localized in the nacreous aragonitic layer of P. nobilis, but not in the calcitic prisms. Because this protein of the nacre of P. nobilis exhibits some mucin-like characteristics, we propose the name mucoperlin. This is the first paper reporting the cloning of a molluscan mucin and the first molecular evidence for the involvement of a mucin in molluscan calcification. This finding corroborates our previous hypothesis that some of the proteinaceous constituents of the molluscan shell matrix would derive from mucins, common to many metazoan lineages of the late Precambrian (Marin, F., Smith, M., Isa, Y., Muyzer, G. and Westbroek, P. (1996) Proc. Natl. Acad. Sci. U. S. A. 93, 1554-1559). The adaptation of an ancestral mucin to a new function, the regulation of the mineralization process, may be one of the molecular events, among others, that would explain the simultaneous emergence of organized calcification in many metazoan lineages during the Cambrian explosion.
Collapse
Affiliation(s)
- F Marin
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands.
| | | | | | | | | |
Collapse
|