2a39
From Proteopedia
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HUMICOLA INSOLENS ENDOCELLULASE EGI NATIVE STRUCTURE
Overview
Cellulose is the major polysaccharide component of the plant cell wall and, the most abundant naturally produced macromolecule on Earth. The enzymic, degradation of cellulose, by cellulases, is therefore of great, environmental and commercial significance. Cellulases are found in 12 of, the glycoside hydrolase families classified according to their amino acid, sequence similarities. Endoglucanase I (Cel7B), from the soft-rot fungus, Humicola insolens, is a family 7 enzyme. The structure of the native form, of Cel7B from H. insolens at 2.2 A resolution has been solved by molecular, replacement using the known Trichoderma reesei cellobiohydrolase I [Divne, Stahlberg, Reinikainen, Ruohonen, Pettersson, Knowles, Teeri and Jones, (1994) Science 265, 524-528] structure as the search model. ... [(full description)]
About this Structure
2A39 is a [Single protein] structure of sequence from [Humicola insolens] with NAG as [ligand]. Active as [[1]], with EC number [3.2.1.4]. Full crystallographic information is available from [OCA].
Reference
Crystal structure of the family 7 endoglucanase I (Cel7B) from Humicola insolens at 2.2 A resolution and identification of the catalytic nucleophile by trapping of the covalent glycosyl-enzyme intermediate., MacKenzie LF, Sulzenbacher G, Divne C, Jones TA, Woldike HF, Schulein M, Withers SG, Davies GJ, Biochem J. 1998 Oct 15;335 ( Pt 2):409-16. PMID:9761741
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