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Structural and functional characterization of new cellulases, focusing in the relation between catalytic domains and CBMs

Grant number: 14/04105-4
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): April 01, 2015
Effective date (End): March 28, 2019
Field of knowledge:Biological Sciences - Biochemistry - Enzymology
Acordo de Cooperação: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Fábio Márcio Squina
Grantee:Marcelo Vizoná Liberato
Host Institution: Pró-Reitoria de Pós-Graduação, Pesquisa, Extensão e Inovação. Universidade de Sorocaba (UNISO). Sorocaba , SP, Brazil
Associated scholarship(s):17/12597-2 - The structure and function of three multimodular glycoside hydrolases related to cellulose, hemicellulose and pectin breakdown, and the influence of the accessory modules in the catalytic activity., BE.EP.PD


Bioethanol has been considered as a promising source of renewable energy not only Brazil, which has high capacity of biofuel production, but in the whole world. This interest has grown thanks to new techniques that produce ethanol by biomass degradation (second generation bioethanol). The key to the success of this technique is to use a set of lignocellulolytic enzymes that, in synergy, are able to degrade biomass releasing fermentable sugars. Many of these enzymes has been characterized, but, as there are a diversity of structural forms and a multitude of functions (with different specificities), it is still far from achieving an efficient and low cost enzyme cocktail. Accordingly , this project aims to study the three-dimensional structure of new cellulases found by the group CTBE in metagenomic lybraries, characterize the function of them, understand the effects of the interaction between the different modules of the enzymes in their activities and to propose and study mutations targeting an improvement in activity, thermostability and specificity. (AU)

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Scientific publications (9)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CAMPOS, BRUNA MEDEIA; LIBERATO, MARCELO VIZONA; ALVAREZ, THABATA MARIA; ZANPHORLIN, LETICIA MARIA; EMATSU, GABRIELA CRISTINA; BARUD, HERNANE; POLIKARPOV, IGOR; RULLER, ROBERTO; GILBERT, HARRY J.; DE MATTOS ZERI, ANA CAROLINA; et al. A Novel Carbohydrate-binding Module from Sugar Cane Soil Metagenome Featuring Unique Structural and Carbohydrate Affinity Properties. Journal of Biological Chemistry, v. 291, n. 45, p. 23734-23743, . (13/06336-0, 08/58037-9, 14/04105-4, 10/11469-1)
BRENELLI, LIVIA B.; PERSINOTI, GABRIELA F.; FRANCO CAIRO, JOAO PAULO L.; LIBERATO, MARCELO V.; GONCALVES, THIAGO AUGUSTO; OTERO, IGOR V. R.; MAINARDI, PEDRO H.; FELBY, CLAUS; SETTE, LARA D.; SQUINA, FABIO M.. Novel redox-active enzymes for ligninolytic applications revealed from multiomics analyses of Peniophora sp. CBMAI 1063, a laccase hyper-producer strain. SCIENTIFIC REPORTS, v. 9, . (13/03061-0, 13/19486-0, 15/07008-2, 14/04105-4, 16/09950-0, 15/06971-3, 15/50590-4, 17/16089-1)
PIMENTEL, AGNES C.; EMATSU, GABRIELA C. G.; LIBERATO, MARCELO V.; PAIXAO, DOUGLAS A. A.; FRANCO CAIRO, JOAO PAULO L.; MANDELLI, FERNANDA; TRAMONTINA, ROBSON; GANDIN, CESAR A.; DE OLIVEIRA NETO, MARIO; SQUINA, FABIO M.; et al. Biochemical and biophysical properties of a metagenome-derived GH5 endoglucanase displaying an unconventional domain architecture. International Journal of Biological Macromolecules, v. 99, p. 384-393, . (14/06923-6, 14/04105-4, 16/01926-2, 10/11469-1, 14/12861-3, 08/58037-9)
ALVAREDO PAIXAO, DOUGLAS ANTONIO; TOMAZETTO, GEIZECLER; SODRE, VICTORIA RAMOS; GONCALVES, THIAGO A.; UCHIMA, CRISTIANE AKEMI; BUCHLI, FERNANDA; ALVAREZ, THABATA MARIA; PERSINOTI, GABRIELA FELIX; DA SILVA, MARCIO JOSE; BRAGATTO, JULIANO; et al. Microbial enrichment and meta-omics analysis identify CAZymes from mangrove sediments with unique properties. Enzyme and Microbial Technology, v. 148, . (12/19040-0, 15/50590-4, 14/04105-4, 16/09950-0, 15/23279-6, 18/18101-1, 17/16089-1)
TRAMONTINA, ROBSON; FRANCO CAIRO, JOAO PAULO L.; LIBERATO, MARCELO V.; MANDELLI, FERNANDA; SOUSA, AMANDA; SANTOS, SAMANTHA; RABELO, SARITA CANDIDA; CAMPOS, BRUNA; IENCZAK, JACIANE; RULLER, ROBERTO; et al. The Coptotermes gestroi aldo-keto reductase: a multipurpose enzyme for biorefinery applications. BIOTECHNOLOGY FOR BIOFUELS, v. 10, . (13/06336-0, 12/20549-4, 14/20576-7, 14/04105-4, 08/58037-9)
PIMENTEL, AGNES C.; LIBERATO, MARCELO V.; CAIRO, JOAO PAULO L. FRANCO; TOMAZETTO, GEIZECLER; GANDIN, CESAR A.; NETO, MARIO DE OLIVEIRA; ALVAREZ, THABATA M.; SQUINA, FABIO M.. Structural and functional insights of the catalytic GH5 and Calx-beta domains from the metagenome-derived endoglucanase CelE2. Enzyme and Microbial Technology, v. 165, p. 10-pg., . (16/01926-2, 15/50590-4, 20/05784-3, 14/04105-4, 10/11469-1, 16/09950-0, 15/23279-6)
CONTESINI, FABIANO JARES; LIBERATO, MARCELO VIZONA; RUBIO, MARCELO VENTURA; CALZADO, FELIPE; ZUBIETA, MARIANE PALUDETTI; RIANO-PACHON, DIEGO MAURICIO; SQUINA, FABIO MARCIO; BRACHT, FABRICIO; SKAF, MUNIR S.; DAMASIO, ANDRE RICARDO. Structural and functional characterization of a highly secreted alpha-L-arabinofuranosidase (GH62) from Aspergillus nidulans grown on sugarcane bagasse. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS, v. 1865, n. 12, p. 1758-1769, . (13/08293-7, 12/20549-4, 14/04105-4, 14/15403-6, 13/24988-5, 14/23051-2, 08/58037-9)
LIBERATO, MARCELO VIZONA; PRATES, ERICA TEIXEIRA; GONCALVES, THIAGO AUGUSTO; BERNARDES, AMANDA; VILELA, NATHALIA; FATTORI, JULIANA; EMATSU, GABRIELA CRISTINA; CHINAGLIA, MARIANA; MACHI GOMES, EMERSON RODRIGO; MIGLIORINI FIGUEIRA, ANA CAROLINA; et al. Insights into the dual cleavage activity of the GH16 laminarinase enzyme class on beta-1,3 and beta-1,4 glycosidic bonds. Journal of Biological Chemistry, v. 296, . (17/08166-6, 14/04105-4, 15/50612-8, 17/16089-1, 17/22669-0, 13/15582-5, 13/08293-7)

Unique properties of a Dictyostelium discoideum carbohydrate-binding module expand our understanding of CBM-ligand interactions

. Journal of Biological Chemistry, v. 298, n. 5, p. 10-pg., . (15/50590-4, 13/06336-0, 15/23279-6, 20/15595-3, 14/04105-4, 20/05784-3, 15/14009-5, 17/17275-3)

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