Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2004-1-27
pubmed:abstractText
A cytosolic phospholipase A2 (PLA2) was purified 640-fold from rat liver by sequential anion-exchange chromatography, Ca2+-precipitation/KCl-solubilization, gel filtration chromatography, and affinity chromatography. A single peak of PLA2 activity was eluted at an apparent molecular mass of 197 kDa from a Superdex 200HR gel filtration column. In the presence of Ca2+, the purified enzyme catalyzed the hydrolysis of 81.8 nmol of phosphatidylethanolamine per hour per mg of protein. The apparent Km was 1.83 nM. The enzyme was inhibited by arachidonyl trifluoromethyl ketone (AACOCF3), an inhibitor of cPLA2. However, it was not inhibited by bromoenol lactone (BEL), an inhibitor of iPLA2, and p-bromophenacyl bromide (p-BPB), an inhibitor of sPLA2. These data suggest that the purified enzyme is a novel Ca2+-dependent cytosolic PLA2.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1016-8478
pubmed:author
pubmed:issnType
Print
pubmed:day
31
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
361-7
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Purification and characterization of a cytosolic phospholipase A2 from rat liver.
pubmed:affiliation
Department of Biological Sciences, Institute for Basic Sciences, Sungkyunkwan University, Suwon 440-746, Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't