rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
3
|
pubmed:dateCreated |
1998-10-28
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pubmed:databankReference |
|
pubmed:abstractText |
The three-dimensional structure of the soluble ecto-domain of HLA-DM has been determined to 2.5 A resolution by X-ray crystallography. HLA-DM has both peptide exchange activity and acts as a chaperone to peptide-free class II MHC molecules. As predicted, the structure is similar to that of classical class II MHC molecules except that the peptide-binding site is altered to an almost fully closed groove. An unusual cavity is found at the center of the region that binds peptides in class II MHC molecules, and a tryptophanrich lateral surface is identified that is a candidate both for binding to HLA-DR, to effect catalysis, and to HLA-DO, an inhibitor.
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Sep
|
pubmed:issn |
1074-7613
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
9
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
377-83
|
pubmed:dateRevised |
2011-11-17
|
pubmed:meshHeading |
pubmed-meshheading:9768757-Antigen Presentation,
pubmed-meshheading:9768757-Antigens,
pubmed-meshheading:9768757-Catalysis,
pubmed-meshheading:9768757-Crystallography, X-Ray,
pubmed-meshheading:9768757-HLA-D Antigens,
pubmed-meshheading:9768757-HLA-DR Antigens,
pubmed-meshheading:9768757-Histocompatibility Antigens Class II,
pubmed-meshheading:9768757-Humans,
pubmed-meshheading:9768757-Molecular Sequence Data,
pubmed-meshheading:9768757-Peptides,
pubmed-meshheading:9768757-Protein Conformation,
pubmed-meshheading:9768757-Sequence Homology, Amino Acid,
pubmed-meshheading:9768757-Species Specificity
|
pubmed:year |
1998
|
pubmed:articleTitle |
The structure of HLA-DM, the peptide exchange catalyst that loads antigen onto class II MHC molecules during antigen presentation.
|
pubmed:affiliation |
Department of Cellular and Molecular Biology, Howard Hughes Medical Institute, Harvard University, Cambridge, Massachusetts 02138, USA. mosyak@crystal.harvard.edu
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|