| Literature DB >> 2515095 |
M Sugai1, H Koike, Y M Hong, Y Miyake, R Nogami, H Suginaka.
Abstract
A bacteriolytic enzyme obtained from the culture fluid of Staphylococcus aureus FDA 209P was purified to homogeneity utilizing dye-ligand affinity column chromatography, hydrophobic interaction high pressure liquid chromatography (HPLC) and hydroxyapatite HPLC. Subsequent characterizations indicated that the purified enzyme acted as endo-beta-N-acetylglucosaminidase. The molecular weight determined by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) was 51,000 and the isoelectric point was higher than 10. The optimum pH for the enzyme activity on whole cells of Micrococcus luteus as a substrate was 8.0. Some heavy metal cations (Cu2+ and Zn2+) inhibited the enzyme activity at a concentration of 0.1 mM and others (Ba2+, Mg2+ and Co2+) showed a stimulating effect at a concentration of 1 mM.Entities:
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Year: 1989 PMID： 2515095 DOI： 10.1016/0378-1097(89)90209-7
Source DB: PubMed Journal: FEMS Microbiol Lett ISSN： 0378-1097 Impact factor: 2.742