Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1996-9-24
pubmed:abstractText
Phospholipase C (phosphatidylcholine phosphohydrolase, EC 3.1.4.3) and lipase (EC 3.1.1.3) activities were detected in the supernatant fluid of Pseudomonas fluorescens strain D cultures. A combination of ultrafiltration and successive chromatography through columns of Sephadex G-75 and DEAE-cellulose was used to purify the phospholipase C over 700-fold from the culture medium, with 28.5% yield. The purified enzyme appeared as a single band after polyacrylamide gel electrophoresis. The apparent molecular mass of the phospholipase C was 36,000 daltons when estimated by gel permeation chromatography. The purified enzyme hydrolysed phosphatidylcholine more efficiently than phosphatidylethanolamine. The synthetic substrate p-nitrophenylphosphorylcholine, phosphatidylinositol or sphingomyelin were not hydrolysed. Hydrolysis of phosphatidylcholine was inhibited by EDTA (1mM) and stimulated by Zn2+, Mg2+ ions and detergents. These properties of the enzyme indicate that it is distinct from the previously reported Ps. fluorescens phospholipase C.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1121-7138
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
113-21
pubmed:dateRevised
2011-2-25
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Characterisation of a phospholipase C produced by Pseudomonas fluorescens.
pubmed:affiliation
Department of Biochemistry and Microbiology, University of Plovdiv, Bulgaria.
pubmed:publicationType
Journal Article