Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2S Suppl
pubmed:dateCreated
2000-4-12
pubmed:abstractText
Homocysteine thiolactone, an intramolecular thioester of homocysteine, is synthesized by methionyl-tRNA synthetase in an error-editing reaction that prevents translational incorporation of homocysteine into proteins. The synthesis of thiolactone occurs in all human cell types investigated. An increase in homocysteine levels leads to elevation of thiolactone levels in human cells. In cultured human cells and in human serum, homocysteine thiolactone reacts with proteins by a mechanism involving homocysteinylation of protein lysine residues. The homocysteinylation leads to protein damage. A calcium-dependent homocysteine thiolactonase, tightly associated with HDL in human serum, may prevent protein damage by detoxifying thiolactone.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0022-3166
pubmed:author
pubmed:issnType
Print
pubmed:volume
130
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
377S-381S
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Homocysteine thiolactone: metabolic origin and protein homocysteinylation in humans.
pubmed:affiliation
Department of Microbiology & Molecular Genetics, UMDNJ-New Jersey Medical School, Newark 07103, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Review