Linked Life Data

19285036

Source:http://linkedlifedata.com/resource/pubmed/id/19285036

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-4-6
pubmed:abstractText
Phosphatidylserine (PS), a relatively abundant component of mammalian cell membranes, plays important roles in biological processes including apoptosis and cell signaling. It is believed that phosphatidyl-L-serine is the only naturally occurring PS. Here, we describe for the first time the occurrence of phosphatidyl-D-serine (D-PS) in rat cerebrum. Quantitative HPLC analysis of the derivatives of serine liberated from PS by hydrolysis revealed that the amount of D-PS was approximately 1% of the total PS in the cerebrum. Enzymatic cleavage of cerebrum PS with phospholipase D and phospholipase C resulted in the release of both isomers of serine and phosphoserine, respectively, providing additional evidence for the existence of D-PS. Free D-serine was incorporated into PS in an in vitro system using a cerebrum extract, and this activity was inhibited by EDTA, suggesting the occurrence of a divalent cation-dependent enzyme that synthesizes D-PS by a base-exchange reaction.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1090-2104
pubmed:author
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
382
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
415-8
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Occurrence of phosphatidyl-D-serine in the rat cerebrum.
pubmed:affiliation
Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't