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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
12
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pubmed:dateCreated |
1996-7-25
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pubmed:abstractText |
NK cells express cell surface receptors for MHC class I proteins (KIR). Engagement of these receptors inhibits NK cell cytotoxic programs. KIR can be expressed on T cells, and their engagement also results in inhibition of effector functions initiated by the CD3/TCR complex. While human KIR genes belong to the Ig gene superfamily, mouse KIR belong to a family of dimeric lectins. Despite these distinct evolutionary origins, we show here that both HLA-Cw3-specific human p58.183 receptors and H-2D d/k-specific mouse Ly49A receptors recruit the same protein tyrosine phosphatases, PTP1C and PTP1D, upon phosphorylation of critical intracytoplasmic tyrosine residues. These results document a common pathway by which diverse KIR can down-regulate NK and T cell activation programs, and further define the sequence of the immunoreceptor tyrosine-based inhibitory motif (ITIM), initially described in FcgammaRIIB1, and expressed in both human and mouse KIR.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0022-1767
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
156
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
4531-4
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:8648092-Amino Acid Sequence,
pubmed-meshheading:8648092-Animals,
pubmed-meshheading:8648092-Humans,
pubmed-meshheading:8648092-Killer Cells, Natural,
pubmed-meshheading:8648092-Lymphocyte Activation,
pubmed-meshheading:8648092-Mice,
pubmed-meshheading:8648092-Molecular Sequence Data,
pubmed-meshheading:8648092-Phosphopeptides,
pubmed-meshheading:8648092-Phosphotyrosine,
pubmed-meshheading:8648092-Protein Tyrosine Phosphatases,
pubmed-meshheading:8648092-Receptors, Immunologic,
pubmed-meshheading:8648092-Signal Transduction
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pubmed:year |
1996
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pubmed:articleTitle |
Human and mouse killer-cell inhibitory receptors recruit PTP1C and PTP1D protein tyrosine phosphatases.
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pubmed:affiliation |
Center for Immunology, INSERM/CNRS of Marseille-Luminy, France.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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