Cloning, purification, crystallization and preliminary X-ray studies of a carbohydrate-binding module (CBM_E1) derived from sugarcane soil metagenome.

ABSTRACT: In recent years, owing to the growing global demand for energy, dependence on fossil fuels, limited natural resources and environmental pollution, biofuels have attracted great interest as a source of renewable energy. However, the production of biofuels from plant biomass is still considered to be an expensive technology. In this context, the study of carbohydrate-binding modules (CBMs), which are involved in guiding the catalytic domains of glycoside hydrolases for polysaccharide degradation, is attracting growing attention. Aiming at the identification of new CBMs, a sugarcane soil metagenomic library was analyzed and an uncharacterized CBM (CBM_E1) was identified. In this study, CBM_E1 was expressed, purified and crystallized. X-ray diffraction data were collected to 1.95?Å resolution. The crystals, which were obtained by the sitting-drop vapour-diffusion method, belonged to space group I23, with unit-cell parameters a = b = c = 88.07?Å.

SUBMITTER: Campos BM 

PROVIDER: S-EPMC4157425 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature