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Crystal structure of a chitinase (RmChiA) from the thermophilic fungus Rhizomucor miehei with a real active site tunnel.

Biochimica et biophysica acta. Proteins and proteomics - 1 Nov 2021

Jiang Zhengqiang, Hu Songqing, Ma Junwen, Liu Yuchun, Qiao Zhu, Yan Qiaojuan, Gao Yonggui, Yang Shaoqing

Abstract excerpt

A chitinase gene (RmChiA) encoding 445 amino acid (aa) residues from a fungus Rhizomucor miehei was cloned and overexpressed in Escherichia coli. Two kinds of RmChiA crystal forms, with space groups P32 2 1 and P1, were obtained by sitting-drop vapor diffusion and the structures were determined by X-ray diffraction. The overall structure of RmChiA monomer, which is the first structure of bacterial-type chitinases...

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PMID: 34358705
DOI: 10.1016/j.bbapap.2021.140709

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