The white-rot fungus Phanerochaete chrysosporium has two intracellular beta-glucosidases (BGL1A and BGL1B) belonging to glycoside hydrolase (GH) family 1. BGL1B effectively hydrolyzes cellobiose and cellobionolactone, but BGL1A does not. We have determined the crystal structure of BGL1A in substrate-free and gluconolactone complexed forms. The overall structure and the characteristic of subsite -1 (glycone site) were similar to those of other known GH1 enzymes. The loop regions covering on the (beta/alpha)(8) barrel was significantly deviated, and they form a unique subsite +1 (aglycone site) of BGL1A.
Crystal structure of intracellular family 1 beta-glucosidase BGL1A from the basidiomycete Phanerochaete chrysosporium.,Nijikken Y, Tsukada T, Igarashi K, Samejima M, Wakagi T, Shoun H, Fushinobu S FEBS Lett. 2007 Apr 3;581(7):1514-20. Epub 2007 Mar 13. PMID:17376440
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↑ Tsukada T, Igarashi K, Yoshida M, Samejima M. Molecular cloning and characterization of two intracellular beta-glucosidases belonging to glycoside hydrolase family 1 from the basidiomycete Phanerochaete chrysosporium. Appl Microbiol Biotechnol. 2006 Dec;73(4):807-14. Epub 2006 Aug 9. PMID:16896601 doi:10.1007/s00253-006-0526-z
↑ Nijikken Y, Tsukada T, Igarashi K, Samejima M, Wakagi T, Shoun H, Fushinobu S. Crystal structure of intracellular family 1 beta-glucosidase BGL1A from the basidiomycete Phanerochaete chrysosporium. FEBS Lett. 2007 Apr 3;581(7):1514-20. Epub 2007 Mar 13. PMID:17376440 doi:10.1016/j.febslet.2007.03.009