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Bento JAC, Bassinello PZ, Morais DK, Souza Neto MAD, Bataus LAM, Carvalho RN, Caliari M, Soares Júnior MS. Pre-gelatinized flours of black and carioca bean by-products: Development of gluten-free instant pasta and baked snacks. Int J Gastron Food Sci 2021. [DOI: 10.1016/j.ijgfs.2021.100383] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Paixão e Silva GDL, Bento JAC, Bataus LAM, Soares Júnior MS, Caliari M. Purple and Beige‐Fleshed Sweet Potato Starches Modified by Autoclaving. STARCH-STARKE 2021. [DOI: 10.1002/star.202000210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Giselle de Lima Paixão e Silva
- Department of Food Engineering. Rodovia GO‐462, Km 0, CP 131, Campus Samambaia Federal University of Goiás (UFG) – School of Agronomy CEP 74690‐900 Goiânia Brazil
| | - Juliana Aparecida Correia Bento
- Department of Food Engineering. Rodovia GO‐462, Km 0, CP 131, Campus Samambaia Federal University of Goiás (UFG) – School of Agronomy CEP 74690‐900 Goiânia Brazil
| | - Luiz Artur Mendes Bataus
- Institute of Biological Sciences Federal University of Goiás (UFG) CP 131, CEP 74690‐900, Goiânia Goiás Brazil
| | - Manoel Soares Soares Júnior
- Department of Food Engineering. Rodovia GO‐462, Km 0, CP 131, Campus Samambaia Federal University of Goiás (UFG) – School of Agronomy CEP 74690‐900 Goiânia Brazil
| | - Márcio Caliari
- Department of Food Engineering. Rodovia GO‐462, Km 0, CP 131, Campus Samambaia Federal University of Goiás (UFG) – School of Agronomy CEP 74690‐900 Goiânia Brazil
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Bento JAC, Ferreira KC, Fidelis MC, Souza Neto MAD, Paixão e Silva GDL, Bataus LAM, Caliari M, Soares Júnior MS. Ultrasound Modification of White Garland‐Lily Starch: Functional, Thermal, and Pasting Properties. STARCH-STARKE 2020. [DOI: 10.1002/star.202000129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Juliana Aparecida Correia Bento
- Federal University of Goiás (UFG) ‐ School of Agronomy Rodovia GO‐462, Km 0, CP 131, Campus Samambaia, CEP Goiânia 74690‐900 Brazil
| | - Karen Carvalho Ferreira
- Federal University of Goiás (UFG) ‐ School of Agronomy Rodovia GO‐462, Km 0, CP 131, Campus Samambaia, CEP Goiânia 74690‐900 Brazil
| | - Marília Cândido Fidelis
- Federal University of Goiás (UFG) ‐ School of Agronomy Rodovia GO‐462, Km 0, CP 131, Campus Samambaia, CEP Goiânia 74690‐900 Brazil
| | - Menandes Alves de Souza Neto
- Federal University of Goiás (UFG) ‐ School of Agronomy Rodovia GO‐462, Km 0, CP 131, Campus Samambaia, CEP Goiânia 74690‐900 Brazil
| | - Gisele de Lima Paixão e Silva
- Federal University of Goiás (UFG) ‐ School of Agronomy Rodovia GO‐462, Km 0, CP 131, Campus Samambaia, CEP Goiânia 74690‐900 Brazil
| | - Luiz Artur Mendes Bataus
- Federal University of Goiás (UFG) ‐ Institute of Biological Sciences Av. Goiás ‐ Chácaras Califórnia, CP 131, Campus Samambaia, CEP Goiânia 74001‐970 Brazil
| | - Márcio Caliari
- Federal University of Goiás (UFG) ‐ School of Agronomy Rodovia GO‐462, Km 0, CP 131, Campus Samambaia, CEP Goiânia 74690‐900 Brazil
| | - Manoel Soares Soares Júnior
- Federal University of Goiás (UFG) ‐ School of Agronomy Rodovia GO‐462, Km 0, CP 131, Campus Samambaia, CEP Goiânia 74690‐900 Brazil
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Gama AR, Brito-Cunha CCQ, Campos ITN, de Souza GRL, Carneiro LC, Bataus LAM. Streptomyces thermocerradoensis I3 secretes a novel bifunctional xylanase/endoglucanase under solid-state fermentation. Biotechnol Prog 2019; 36:e2934. [PMID: 31642208 DOI: 10.1002/btpr.2934] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 10/02/2019] [Accepted: 10/15/2019] [Indexed: 11/08/2022]
Abstract
Lignocellulosic wastes can be potentially converted into several bioproducts such as glucose, xylo-oligosaccharides, and bioethanol. Certain processes, such as enzymatic hydrolysis, are generally needed to convert biomass into bioproducts. The present study investigated the production of xylanases and cellulases by Streptomyces thermocerradoensis I3 under solid-state fermentation (SSF), using wheat bran as a low-cost medium. The activities of xylanase and carboxymethyl cellulase (CMCase) were evaluated until 96 hr of incubation. The highest enzyme activity was observed after 72 hr of incubation. The crude enzyme extract was sequentially filtered, first using a 50 kDa filter, followed by a 30 kDa filter. Fraction 3 (F3) exhibited activities of both xylanase and CMCase. Xylanase and CMCase showed optimum activity at 70°C and pH 6.0 and 55°C and pH 6.0, respectively. The zymogram analysis showed a single activity band with a molecular mass of approximately 17 kDa. These findings provide strong evidence that the enzyme is a bifunctional xylanase/endoglucanase. This enzyme improved the saccharification of sugarcane bagasse by 1.76 times that of commercial cellulase. This enzyme has potential applications in various biotechnological procedures.
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Affiliation(s)
- Aline Rodrigues Gama
- Departament of Biochemistry and Molecular Biology, Federal University of Goiás, Goiânia, Brazil
| | | | - Ivan T N Campos
- Departament of Biochemistry and Molecular Biology, Federal University of Goiás, Goiânia, Brazil
| | | | - Lilian Carla Carneiro
- Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil
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da Cruz GAF, de Jesus Pires D, Bataus LAM, Silva RDR, Barbosa MS, Gomes RP, Braga CASB, Carneiro LC. Cultivable microbiome and its resistance to antimicrobials isolated from Zaprionus indianus. Environ Monit Assess 2018; 190:616. [PMID: 30267157 DOI: 10.1007/s10661-018-6974-y] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 09/05/2018] [Indexed: 06/08/2023]
Abstract
The objective of this study was to identify Z. indianus in PEJC and PESCAN. Listed are the following methods: to isolate bacteria from the integument of the Z. indianus species collected and to check the resistance of microorganisms to antibiotics. Collections of Z. indianus were performed in four seasons of the two parks. The results obtained suggest that the low amount of Z. indianus collected can be justified by environmental factors such as high average temperature and low average humidity. It is noted that there is a predominance of bacteria of the Enterobacteriaceae family found in both the PEJC and the PESCAN. The antibiogram performed for the isolated PEJC bacteria shows statistical significance when comparing the edge and inside values of the park. Studies with fungi were also carried out, and it was evidenced that Trichophyton spp. was the genus that most inhabited the two environments studied. The ability of fluconazole and ketoconazole to inhibit fungal growth was also investigated, and considering the concentration tested may suggest that they have good action spectra. Plasmid profile data show that 60% of antibiotic-resistant bacteria have plasmids. The values found show that Z. indianus can act as vectors of microorganisms that affect the healthy animals and humans and that these organisms may be influenced by seasons.
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Affiliation(s)
| | - Débora de Jesus Pires
- State University of Goiás, 14 street, 327, Jardim América neighborhood, Morrinhos City, GO, 75650-000, Brazil
| | - Luiz Artur Mendes Bataus
- Federal University of Goiás, 235 street, Universitário neighborhood, Goânia City, GO, 74605-050, Brazil
| | - Rassan Dyego Romão Silva
- Federal University of Goiás, 235 street, Universitário neighborhood, Goânia City, GO, 74605-050, Brazil
| | - Mônica Santiago Barbosa
- Federal University of Goiás, 235 street, Universitário neighborhood, Goânia City, GO, 74605-050, Brazil
| | - Raylane Pereira Gomes
- Federal University of Goiás, 235 street, Universitário neighborhood, Goânia City, GO, 74605-050, Brazil
| | | | - Lilian Carla Carneiro
- Federal University of Goiás, 235 street, Universitário neighborhood, Goânia City, GO, 74605-050, Brazil.
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de Queiroz Brito Cunha CC, Gama AR, Cintra LC, Bataus LAM, Ulhoa CJ. Improvement of bread making quality by supplementation with a recombinant xylanase produced by Pichia pastoris. PLoS One 2018; 13:e0192996. [PMID: 29481569 PMCID: PMC5826528 DOI: 10.1371/journal.pone.0192996] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 02/03/2018] [Indexed: 11/22/2022] Open
Abstract
Xylanases (EC 3.2.1.8) are hydrolytic enzymes, which randomly cleave the β-1,4-linked xylose residues from xylan. The synthetic gene xynBS27 from Streptomyces sp. S27 was successfully cloned and expressed in Pichia pastoris. The full-length gene consists of 729 bp and encodes 243 amino acids including 51 residues of a putative signal peptide. This enzyme was purified in two steps and was shown to have a molecular weight of 20 kDa. The purified r-XynBS27 was active against beechwood xylan and oat spelt xylan as expected for GH 11 family. The optimum pH and temperature values for the enzyme were 6.0 and 75 °C, respectively. The Km and Vmax were 12.38 mg/mL and 13.68 μmol min/mg, respectively. The r-XynBS27 showed high xylose tolerance and was inhibited by some metal ions and by SDS. r-XynBS27 was employed as an additive in the bread making process. A decrease in firmness, stiffness and consistency, and improvements in specific volume and reducing sugar content were recorded.
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Affiliation(s)
| | | | - Lorena Cardoso Cintra
- Federal University of Goiás, Campus Samambaia, Goiânia, Goiás, Brazil
- University of Brasília, Campus Darcy Ribeiro, Distrito Federal, Brasília, Brazil
| | | | - Cirano José Ulhoa
- Federal University of Goiás, Campus Samambaia, Goiânia, Goiás, Brazil
- University of Brasília, Campus Darcy Ribeiro, Distrito Federal, Brasília, Brazil
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Dourado PL, Cardoso VL, Coelho ASG, Bataus LAM. Sequence analysis and characterization of plasmid pLK39 isolated from endophytic Salmonella sp. isolated from Solanum lycocarpum. Curr Microbiol 2014; 69:846-51. [PMID: 25086582 DOI: 10.1007/s00284-014-0663-z] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 06/11/2014] [Indexed: 10/24/2022]
Abstract
The complete nucleotide sequence of a small cryptic plasmid pLK39 isolated from endophytic Salmonella sp. was determined. This plasmid is 4,029 bp long with an overall GC content of 55.4 %. Sequence analyses of pLK39 revealed extensive homology to several plasmids: pRK10, pK, pSW200, pBERT, pST728/06-2, pSW100, pEC3, and pUCD5000. Using the ORF Finder program, 35 putative ORFs was identified, 30 showed more than 35 residues. After performing a search for homologous sequences to the pLK39 at BLASTn software on NCBI, it was ascertained that the plasmid has a ColE1-like replication origin and also a region of mobilization proteins from relaxase family (mobCABD). Besides these mobilization proteins, the pLK39 codes a putative DUF903 protein family, which is characterized as assumed external cytoplasmic membrane lipoprotein. A recombinant form of pLK39 carrying a kanamycin resistance gene is stably maintained in Escherichia coli cells grown in the absence of selection pressure. pLK39 was compatible with pUC18, pBR322, and pACYC184.
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Affiliation(s)
- Pericles Lopes Dourado
- Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, GO, 74001-970, Brazil,
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da Silva EF, Freiria-Oliveira AH, Custódio CHX, Ghedini PC, Bataus LAM, Colombari E, de Castro CH, Colugnati DB, Rosa DA, Cravo SLD, Pedrino GR. A1 noradrenergic neurons lesions reduce natriuresis and hypertensive responses to hypernatremia in rats. PLoS One 2013; 8:e73187. [PMID: 24039883 PMCID: PMC3769347 DOI: 10.1371/journal.pone.0073187] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 07/17/2013] [Indexed: 11/18/2022] Open
Abstract
Noradrenergic neurons in the caudal ventrolateral medulla (CVLM; A1 group) contribute to cardiovascular regulation. The present study assessed whether specific lesions in the A1 group altered the cardiovascular responses that were evoked by hypertonic saline (HS) infusion in non-anesthetized rats. Male Wistar rats (280-340 g) received nanoinjections of antidopamine-β-hydroxylase-saporin (A1 lesion, 0.105 ng.nL(-1)) or free saporin (sham, 0.021 ng.nL(-1)) into their CVLMs. Two weeks later, the rats were anesthetized (2% halothane in O2) and their femoral artery and vein were catheterized and led to exit subcutaneously between the scapulae. On the following day, the animals were submitted to HS infusion (3 M NaCl, 1.8 ml • kg(-1), b.wt., for longer than 1 min). In the sham-group (n = 8), HS induced a sustained pressor response (ΔMAP: 35±3.6 and 11±1.8 mmHg, for 10 and 90 min after HS infusion, respectively; P<0.05 vs. baseline). Ten min after HS infusion, the pressor responses of the anti-DβH-saporin-treated rats (n = 11)were significantly smaller(ΔMAP: 18±1.4 mmHg; P<0.05 vs. baseline and vs. sham group), and at 90 min, their blood pressures reached baseline values (2±1.6 mmHg). Compared to the sham group, the natriuresis that was induced by HS was reduced in the lesioned group 60 min after the challenge (196±5.5 mM vs. 262±7.6 mM, respectively; P<0.05). In addition, A1-lesioned rats excreted only 47% of their sodium 90 min after HS infusion, while sham animals excreted 80% of their sodium. Immunohistochemical analysis confirmed a substantial destruction of the A1 cell group in the CVLM of rats that had been nanoinjected withanti-DβH-saporin. These results suggest that medullary noradrenergic A1 neurons are involved in the excitatory neural pathway that regulates hypertensive and natriuretic responses to acute changes in the composition of body fluid.
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Affiliation(s)
- Elaine Fernanda da Silva
- Department of Physiological Sciences, Biological Sciences Institute, Federal University of Goiás,Goiânia, Goiás, Brazil
| | | | | | - Paulo César Ghedini
- Department of Physiological Sciences, Biological Sciences Institute, Federal University of Goiás,Goiânia, Goiás, Brazil
| | - Luiz Artur Mendes Bataus
- Department of Physiological Sciences, Biological Sciences Institute, Federal University of Goiás,Goiânia, Goiás, Brazil
| | - Eduardo Colombari
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University, Araraquara, São Paulo, Brazil
| | - Carlos Henrique de Castro
- Department of Physiological Sciences, Biological Sciences Institute, Federal University of Goiás,Goiânia, Goiás, Brazil
| | - Diego Basile Colugnati
- Department of Physiological Sciences, Biological Sciences Institute, Federal University of Goiás,Goiânia, Goiás, Brazil
| | - Daniel Alves Rosa
- Department of Physiological Sciences, Biological Sciences Institute, Federal University of Goiás,Goiânia, Goiás, Brazil
| | - Sergio L. D. Cravo
- Department of Physiology, Federal University of São Paulo, São Paulo, São Paulo, Brazil
| | - Gustavo Rodrigues Pedrino
- Department of Physiological Sciences, Biological Sciences Institute, Federal University of Goiás,Goiânia, Goiás, Brazil
- * E-mail:
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Brito-Cunha CCDQ, de Campos ITN, de Faria FP, Bataus LAM. Screening and Xylanase Production by Streptomyces sp. Grown on Lignocellulosic Wastes. Appl Biochem Biotechnol 2013; 170:598-608. [DOI: 10.1007/s12010-013-0193-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 03/11/2013] [Indexed: 10/27/2022]
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Dias-Penna KGB, Melo-Reis PRD, Mesquita MMD, Silva JBD, Bataus LAM. Dificuldades na identificação laboratorial da talassemia alfa. J Bras Patol Med Lab 2010. [DOI: 10.1590/s1676-24442010000200004] [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: 11/22/2022] Open
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Marcello CM, Steindorff AS, da Silva SP, Silva RDN, Mendes Bataus LA, Ulhoa CJ. Expression analysis of the exo-β-1,3-glucanase from the mycoparasitic fungus Trichoderma asperellum. Microbiol Res 2010; 165:75-81. [DOI: 10.1016/j.micres.2008.08.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2007] [Revised: 08/05/2008] [Accepted: 08/08/2008] [Indexed: 10/21/2022]
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da Silva Sobrinho I, Bataus LAM, Maitan VR, Ulhoa CJ. Purification and properties of an N-acetylglucosaminidase from Streptomyces cerradoensis. Biotechnol Lett 2006; 27:1273-6. [PMID: 16215824 DOI: 10.1007/s10529-005-0218-2] [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: 03/22/2005] [Revised: 06/14/2005] [Accepted: 06/15/2005] [Indexed: 10/25/2022]
Abstract
An N-acetylglucosaminidase produced by Streptomyces cerradoensis was partially purified giving, by SDS-PAGE analysis, two main protein bands with Mr of 58.9 and 56.4 kDa. The Km and Vmax values for the enzyme using p-nitrophenyl-beta-N-acetylglucosaminide as substrate were of 0.13 mM: and 1.95 U mg(-1) protein, respectively. The enzyme was optimally activity at pH 5.5 and at 50 degrees C when assayed over 10 min. Enzyme activity was strongly inhibited by Cu2+ and Hg2+ at 10 mM, and was specific to substrates containing acetamide groups such as p-nitrophenyl-beta-N-acetylglucosaminide and p-nitrophenyl-beta-D-N,N'-diacetylchitobiose.
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Pereira M, Parente JA, Bataus LAM, Cardoso DDDDP, Soares RBA, Soares CMDA. Chemotaxis and flagellar genes of Chromobacterium violaceum. Genet Mol Res 2004; 3:92-101. [PMID: 15100991] [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: 04/29/2023]
Abstract
The availability of the complete genome of the Gram-negative beta-proteobacterium Chromobacterium violaceum has increasingly impacted our understanding of this microorganism. This review focuses on the genomic organization and structural analysis of the deduced proteins of the chemosensory adaptation system of C. violaceum. C. violaceum has multiple homologues of most chemotaxis genes, organized mostly in clusters in the bacterial genome. We found at least 67 genes, distributed in 10 gene clusters, involved in the chemotaxis of C. violaceum. A close examination of the chemoreceptors methyl-accepting chemotaxis proteins (MCPs), and the deduced sequences of the members of the two-component signaling system revealed canonical motifs, described as essential for the function of the deduced proteins. The chemoreceptors found in C. violaceum include the complete repertoire of such genes described in bacteria, designated as tsr, tar, trg, and tap; 41 MCP loci were found in the C. violaceum genome. Also, the C. violaceum genome includes a large repertoire of the proteins of the chemosensory transducer system. Multiple homologues of bacterial chemotaxis genes, including CheA, CheB, CheD, CheR, CheV, CheY, CheZ, and CheW, were found in the C. violaceum genome.
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Affiliation(s)
- Maristela Pereira
- Laboratório de Biologia Molecular, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brasil
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Felipe MSS, Andrade RV, Petrofeza SS, Maranhão AQ, Torres FAG, Albuquerque P, Arraes FBM, Arruda M, Azevedo MO, Baptista AJ, Bataus LAM, Borges CL, Campos EG, Cruz MR, Daher BS, Dantas A, Ferreira MASV, Ghil GV, Jesuino RSA, Kyaw CM, Leitão L, Martins CR, Moraes LMP, Neves EO, Nicola AM, Alves ES, Parente JA, Pereira M, Poças-Fonseca MJ, Resende R, Ribeiro BM, Saldanha RR, Santos SC, Silva-Pereira I, Silva MAS, Silveira E, Simões IC, Soares RBA, Souza DP, De-Souza MT, Andrade EV, Xavier MAS, Veiga HP, Venancio EJ, Carvalho MJA, Oliveira AG, Inoue MK, Almeida NF, Walter MEMT, Soares CMA, Brígido MM. Transcriptome characterization of the dimorphic and pathogenic fungus Paracoccidioides brasiliensis by EST analysis. Yeast 2003; 20:263-71. [PMID: 12557278 DOI: 10.1002/yea.964] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.2] [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: 11/07/2022] Open
Abstract
Paracoccidioides brasiliensis is a pathogenic fungus that undergoes a temperature-dependent cell morphology change from mycelium (22 degrees C) to yeast (36 degrees C). It is assumed that this morphological transition correlates with the infection of the human host. Our goal was to identify genes expressed in the mycelium (M) and yeast (Y) forms by EST sequencing in order to generate a partial map of the fungus transcriptome. Individual EST sequences were clustered by the CAP3 program and annotated using Blastx similarity analysis and InterPro Scan. Three different databases, GenBank nr, COG (clusters of orthologous groups) and GO (gene ontology) were used for annotation. A total of 3,938 (Y = 1,654 and M = 2,274) ESTs were sequenced and clustered into 597 contigs and 1,563 singlets, making up a total of 2,160 genes, which possibly represent one-quarter of the complete gene repertoire in P. brasiliensis. From this total, 1,040 were successfully annotated and 894 could be classified in 18 functional COG categories as follows: cellular metabolism (44%); information storage and processing (25%); cellular processes-cell division, posttranslational modifications, among others (19%); and genes of unknown functions (12%). Computer analysis enabled us to identify some genes potentially involved in the dimorphic transition and drug resistance. Furthermore, computer subtraction analysis revealed several genes possibly expressed in stage-specific forms of P. brasiliensis. Further analysis of these genes may provide new insights into the pathology and differentiation of P. brasiliensis.
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Affiliation(s)
- M S S Felipe
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade de Brasília, 70910-900 Brasília, DF, Brasil.
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Rodrigues FM, Diniz-Filho JAF, Bataus LAM, Bastos RP. Hypothesis testing of genetic similarity based on RAPD data using Mantel tests and model matrices. Genet Mol Biol 2002. [DOI: 10.1590/s1415-47572002000400013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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