Crystal structure of 1,3Gal43A, an exo-β-1,3-galactanase from Clostridium thermocellum.

  title={Crystal structure of 1,3Gal43A, an exo-β-1,3-galactanase from Clostridium thermocellum.},
  author={Daohua Jiang and Junping Fan and Xianping Wang and Yan Zhao and Bo Huang and Jianfeng Liu and Xuejun Cai Zhang},
  journal={Journal of structural biology},
  volume={180 3},
Glycoside hydrolase family 43 (GH43) consists of a variety of enzymes distributed widely in prokaryotes and eukaryotes. The mechanism by which GH43 enzymes hydrolyze oligosaccharides requires three essential acidic amino acid residues. However, one of them is thought to be missing in galactan β-1,3-galactosidases from the GH43 family. Ct1,3Gal43A, from Clostridium thermocellum, is comprised of a GH43 domain, a CBM13 domain, and a dockerin domain and exhibits an unusual ability to hydrolyze β-1… CONTINUE READING
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