Hermes HF, Sonke T, Peters PJ, van Balken JA, Kamphuis J, Dijkhuizen L, Meijer EM. Purification and Characterization of an l-Aminopeptidase from Pseudomonas putida ATCC 12633.
Appl Environ Microbiol 2010;
59:4330-4. [PMID:
16349130 PMCID:
PMC195905 DOI:
10.1128/aem.59.12.4330-4334.1993]
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Abstract
An l-aminopeptidase of Pseudomonas putida, used in an industrial process for the hydrolysis of d,l-amino acid amide racemates, was purified to homogeneity. The highly l-enantioselective enzyme resembled thiol reagent-sensitive alkaline serine proteinases and was strongly activated by divalent cations. It possessed a high substrate specificity for dipeptides and alpha-H amino acid amides, e.g., l-phenylglycine amide.
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