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Characterization of Pneumocystis murina Bgl2, an Endo-β-1,3-Glucanase and Glucanosyltransferase.

J. Infect. Dis.. 2019; 
KuttyGeetha,DavisA Sally,SchuckKaitlynn,MastersonMya,WangHonghui,LiuYueqin,KovacsJose
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Bacterial Expression System … sequence encoding 286 amino acids of P. murina Bgl2 (spanning amino acids 22–307; GenBank accession number XP_019613310) was optimized for bacterial expression, synthesized, and cloned into pET28b (+) expression vector, which includes a His tag (GenScript USA) … Get A Quote

摘要

Glucan is the major cell wall component of Pneumocystis cysts. In the current study, we have characterized Pneumocystis Bgl2 (EC 3.2.1.58), an enzyme with glucanosyltransferase and β-1,3 endoglucanase activity in other fungi. Pneumocystis murina, Pneumocystis carinii, and Pneumocystis jirovecii bgl2 complementary DNA sequences encode proteins of 437, 447, and 408 amino acids, respectively. Recombinant P. murina Bgl2 expressed in COS-1 cells demonstrated β-glucanase activity, as shown by degradation of the cell wall of Pneumocystis cysts. It also cleaved reduced laminaripentaose and transferred oligosaccharides, resulting in polymers of 6 and 7 glucan residues, demonstrating glucanosyltra... More

关键词

Pneumocystis ,Bgl2,cell wall,endoglucanase,glucan,glucanosyltransferase,