Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1977-4-15
pubmed:abstractText
Prostaglandin endoperoxide E isomerase catalyzes the isomerization of the endoperoxy group of prostaglandin H and produces prostaglandin E. The enzyme was solubilized with Tween 20 from bovine vesicular gland microsomes and purified 26-fold by successive column chromatography on DEAE-cellulose and omega-aminobutyl Sepharose 4B. The previously known requirement for glutathione was further investigated. The activity of freshly prepared enzyme was destroyed rapidly with a half-life of about 30 min at 24 degrees, pH 8.0. Various thiol compounds including glutathione protected the enzyme from such an inactivation. However, several findings indicated that glutathione was possibly specifically involved as a coenzyme in the isomerase reaction, but was not oxidized in a stoichiometric quantity. The enzyme also isomerized prostaglandin G at a rate approximately half of that of prostaglandin H.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
10
pubmed:volume
252
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
890-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
Prostaglandin endoperoxide E isomerase from bovine vesicular gland microsomes, a glutathione-requiring enzyme.
pubmed:publicationType
Journal Article