Brazilian Archives of Biology and Technology (Jan 1999)

Chimeric ß-glucosidase between Cellvibrio gilvus and Ruminococcus albus enzymes

  • Truong Thi Hoa,
  • Ajay Singh,
  • Kenji Iwakiri,
  • Chika Aoyagi,
  • Ken Tokuyasu,
  • Kunio Ohmiya,
  • Kiyoshi Hayashi

DOI
https://doi.org/10.1590/S1516-89131999000300006
Journal volume & issue
Vol. 42, no. 3
pp. 303 – 306

Abstract

Read online

Based on homology search in the amino acid sequences, a chimeric ß-glucosidase with enzyme activity has been prepared by replacing C-terminal region of Thr509-Arg646 from Cellvibrio gilvus with N-terminal region of Arg160-Gly283 from Ruminococcus albus. The chimeric enzyme showed broader optimum pH and slightly higher heat stability compared with original C. gilvus enzyme.Baseado na busca de homólogos na seqüência de aminoácidos, uma ß glucosidase - quimérica com atividade enzimática foi preparada para substituir C-terminal na região de Thr509-Arg646 de Cellvibrio gilvus com N-terminal na região de Arg160-Gly283 de Ruminococcus albus. A enzima quimérica mostrou pH ótimo mais amplo e estabilidade levemente mais alta ao calor comparada com a enzima original de C. gilvus.

Keywords