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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2000-6-21
pubmed:abstractText
Killer cell immunoglobulin-like receptors (KIR) bind HLA class I proteins in an allele- and locus-specific manner. This report describes the use of transfectants expressing recombinant chimeric proteins, comprising the extracellular portions of KIR molecules and the transmembrane and cytoplasmic tails of CD3-zeta, to create an in vitro system in which signaling is readily measured and that preserves the specificity of the KIR / HLA-C interaction. The identity of the amino acid residues on the KIR molecule important for binding to the HLA protein is not well understood; although some KIR2D residues involved in HLA-C recognition have been identified, their relative importance and whether other amino acids contribute to binding was unclear. This novel system was used to study, by site-directed mutagenesis, the role of various amino acids in KIR binding to HLA-C ligand. The data presented here show that while multiple polymorphic residues contribute to the HLA-C binding site on KIR proteins, two clusters of polymorphic residues define the group allotype specificity of HLA-C binding to a KIR2D molecule.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0014-2980
pubmed:author
pubmed:issnType
Print
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1480-5
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Definition of polymorphic residues on killer Ig-like receptor proteins which contribute to the HLA-C binding site.
pubmed:affiliation
Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138, USA.
pubmed:publicationType
Journal Article