Cloning, Expression and Purification ofBacillus cereusEndochitinase in theEscherichia coliAD494(DE3)pLysS Expression System
Author(s) -
WeiMing Chen,
GenHung Chen,
Ching-San Chen,
ShannTzong Jiang
Publication year - 2009
Publication title -
bioscience biotechnology and biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.509
H-Index - 116
eISSN - 1347-6947
pISSN - 0916-8451
DOI - 10.1271/bbb.80618
Subject(s) - bacillus cereus , escherichia coli , chitinase , recombinant dna , cloning (programming) , biology , microbiology and biotechnology , molecular cloning , gene , gene expression , biochemistry , bacteria , genetics , computer science , programming language
A chitinase gene from Bacillus cereus was cloned and expressed in Escherichia coli. The purified recombinant chitinase had much higher (128 fold) specificity to pNP-beta-(GlcNAc)(3) than to pNP-beta-(GlcNAc), suggesting endochitinase. Thirty-three amino acids in the N-terminal were recognized and cut off during expression, which consequently made the M(r) not correspond to that predicted.
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