Cloning, Overexpression, and Characterization of a Novel Thermostable Penicillin G Acylase from Achromobacter xylosoxidans : Probing the Molecular Basis for Its High Thermostability
نویسندگان
چکیده
منابع مشابه
Cloning, overexpression, and characterization of a novel thermostable penicillin G acylase from Achromobacter xylosoxidans: probing the molecular basis for its high thermostability.
The gene encoding a novel penicillin G acylase (PGA), designated pgaW, was cloned from Achromobacter xylosoxidans and overexpressed in Escherichia coli. The pgaW gene contains an open reading frame of 2586 nucleotides. The deduced protein sequence encoded by pgaW has about 50% amino acid identity to several well-characterized PGAs, including those of Providencia rettgeri, Kluyvera cryocrescens,...
متن کاملMolecular cloning and analysis of the gene encoding the thermostable penicillin G acylase from Alcaligenes faecalis.
Alcaligenes faecalis penicillin G acylase is more stable than the Escherichia coli enzyme. The activity of the A. faecalis enzyme was not affected by incubation at 50 degrees C for 20 min, whereas more than 50% of the E. coli enzyme was irreversibly inactivated by the same treatment. To study the molecular basis of this higher stability, the A. faecalis enzyme was isolated and its gene was clon...
متن کاملMolecular cloning of the penicillin G acylase gene from Arthrobacter viscosus.
Penicillin G acylase was purified from the cultured filtrate of Arthrobacter viscosus 8895GU and was found to consist of two distinct subunits with apparent molecular weights of 24,000 (alpha) and 60,000 (beta). The partial N-terminal amino acid sequences of the alpha and beta subunits were determined with a protein gas phase sequencer, and a 29-base oligonucleotide corresponding to the partial...
متن کاملPenicillin G Acylase, a biocatalyst and its potential application
The PGA enzyme belongs to the family of N-terminal nucleophile (Ntn) hydrolases. The enzyme Penicillin G Acylase (PGA) mainly produced from Penicillium chrysogenum, E.coli. The synthesis of PGA enzyme is depends on the physico-chemical parameters like carbon source, pH, temperature and media were optimized for higher production of enzyme. There are different methods of purification of PGA enzym...
متن کاملIsolation of a Penicillin Acylase Producing E.coli and Kinetic Characterization of the Whole Cell Enzyme Activity
Penicillin acylase (EC 3.5.1.11) has been a target of study for a long time because of its pivotal role in the deacylation of the penicillin into the 6- aminopenicillanic acid (6-APA) and the side-chain organic acids. This property of penicillin acylase has been exploited commercially for large scale production of 6-APA, which is the key intermediate in the manufacture of semi-synthetic penicil...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2004
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.70.5.2764-2770.2004