Linked Life Data

8058315

Source:http://linkedlifedata.com/resource/pubmed/id/8058315

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1994-9-15
pubmed:abstractText
The function of p53 is modulated by binding to a number of cellular and viral proteins, such as MDM2 and SV40 large T antigen. An initial immunochemical characterization of the p53-MDM2 complex in a rat fibroblast cell line (Clone 6) suggested that the anti-p53 monoclonal antibody Bp53-19 failed to immunoprecipitate the complex, and only recognized a fraction of the available p53 protein. Following the recent identification of the Bp53-19 epitope at the N-terminal end of p53, in the vicinity of where MDM2 protein was known to bind, we investigated the possibility that Bp53-19 might identify a region of p53 that interacts with MDM2 protein. MDM2 was found to bind with great specificity to short synthetic peptides derived from the N-terminus of p53. Several p53 synthetic peptides libraries, and an alanine substitution series at the optimal binding site, were used to establish the MDM2 binding site, in fine detail, to the sequence TFSGLW (aa 18-23) in mouse and TFSDLW in man (aa 18-23). The key residues required for MDM2 binding are almost identical to those required for the monoclonal antibody Bp53-19 to bind and this region of p53 is recognised by many other anti-p53 antibodies.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0950-9232
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2523-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Immunochemical analysis of the interaction of p53 with MDM2;--fine mapping of the MDM2 binding site on p53 using synthetic peptides.
pubmed:affiliation
Dept. of Biochemistry, Dundee University, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't