Characterization;
Gene expression;
Metagenomic library;
Penicillin G acylase;
D O I:
暂无
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摘要:
One clone (ACPGA001) exhibiting penicillin G acylase (PGA) activity was screened from a metagenomic library by using a medium containing penicillin G. A novel PGA gene from the inserted fragment of ACPGA001 was obtained by sequencing. The amino acid sequence of ACPGA001 PGA exhibited <33 % similarity to PGAs retrieved from GenBank. This gene was expressed in Escherichia coli M15 and the recombinant protein was purified and characterized. The ACPGA001 PGA exhibited a maximum activity at 60 °C and showed high activity at pH 4–10 with an optimum pH of 8.0. This enzyme was stable at 40 °C for 70 min with a half-life of 60 min at 55 °C. These beneficial characteristics of ACPGA001 PGA provide some advantages for the potential application of ACPGA001 PGA in industry.
机构:
Department of Chemistry, Moscow State University, Moscow
Innovations and High Technologies MSU Ltd., ul. Tsymlyanskaya 16, MoscowDepartment of Chemistry, Moscow State University, Moscow
Stepashkina A.V.
Savin S.S.
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Innovations and High Technologies MSU Ltd., ul. Tsymlyanskaya 16, Moscow
Bach Institute of Biochemistry, Russian Academy of Sciences, Leninskii prosp. 33, MoscowDepartment of Chemistry, Moscow State University, Moscow
Savin S.S.
Skirgello O.E.
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机构:
Department of Chemistry, Moscow State University, Moscow
Innovations and High Technologies MSU Ltd., ul. Tsymlyanskaya 16, MoscowDepartment of Chemistry, Moscow State University, Moscow
Skirgello O.E.
Tishkov V.I.
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机构:
Department of Chemistry, Moscow State University, Moscow
Innovations and High Technologies MSU Ltd., ul. Tsymlyanskaya 16, Moscow
Bach Institute of Biochemistry, Russian Academy of Sciences, Leninskii prosp. 33, MoscowDepartment of Chemistry, Moscow State University, Moscow
机构:Fudan Univ, Sch Pharm, Dept Drug Biosynth, Shanghai 200032, Peoples R China
Yong, W
Shi, XL
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机构:Fudan Univ, Sch Pharm, Dept Drug Biosynth, Shanghai 200032, Peoples R China
Shi, XL
Yuan, ZY
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机构:Fudan Univ, Sch Pharm, Dept Drug Biosynth, Shanghai 200032, Peoples R China
Yuan, ZY
Pei, Z
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机构:
Fudan Univ, Sch Pharm, Dept Drug Biosynth, Shanghai 200032, Peoples R ChinaFudan Univ, Sch Pharm, Dept Drug Biosynth, Shanghai 200032, Peoples R China