Divalent metal activation of a GH43 β-xylosidase.

  title={Divalent metal activation of a GH43 β-xylosidase.},
  author={Charles C. Lee and Jay D. Braker and Arabela A. Grigorescu and Kurt C Wagschal and Douglas Brian Jordan},
  journal={Enzyme and microbial technology},
  volume={52 2},
Depolymerization of xylan, a major fraction of lignocellulosic biomass, releases xylose which can be converted into transportation fuels and chemical feedstocks. A requisite enzyme for the breakdown of xylan is β-xylosidase. A gene encoding the 324-amino acid β-xylosidase, RS223-BX, was cloned from an anaerobic mixed microbial culture. This glycoside hydrolase belongs to family 43. Unlike other GH43 enzymes, RS223-BX can be strongly activated by exogenously supplied Ca(2+), Co(2+), Fe(2+), Mg(2… CONTINUE READING


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