Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
1994-6-22
pubmed:abstractText
The consensus pentapeptide GXSXG is found in virtually all lipases/esterases and generally contains the active site serine. The primary sequence of hormone-sensitive lipase contains a single copy of this pentapeptide, surrounding Ser-423. We have analyzed the catalytic role of Ser-423 by site-directed mutagenesis and expression of the mutant hormone-sensitive lipase in COS cells. Substitution of Ser-423 by several different amino acids resulted in the complete abolition of both lipase and esterase activity, whereas mutation of other conserved serine residues had no effect on the catalytic activity. These results strongly suggest that Ser-423 is the active site serine of hormone-sensitive lipase.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
344
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
234-8
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Identification of the active site serine of hormone-sensitive lipase by site-directed mutagenesis.
pubmed:affiliation
Department of Medical and Physiological Chemistry, Lund University, Sweden.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't