3eyf

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Crystal structure of anti-human cytomegalovirus antibody 8f9 plus gB peptideCrystal structure of anti-human cytomegalovirus antibody 8f9 plus gB peptide

Structural highlights

3eyf is a 6 chain structure with sequence from Homo sapiens and Human herpesvirus 5 strain Towne. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.3Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

Q6PJF2_HUMAN

Publication Abstract from PubMed

Immunoglobulin genes are generated somatically through specialized mechanisms resulting in a vast repertoire of antigen-binding sites. Despite the stochastic nature of these processes, the V-genes that encode most of the antigen-combining site are under positive evolutionary selection, raising the possibility that V-genes have been selected to encode key structural features of binding sites of protective antibodies against certain pathogens. Human, neutralizing antibodies to human cytomegalovirus that bind the AD-2S1 epitope on its gB envelope protein repeatedly use a pair of well-conserved, germline V-genes IGHV3-30 and IGKV3-11. Here, we present crystallographic, kinetic and thermodynamic analyses of the binding site of such an antibody and that of its primary immunoglobulin ancestor. These show that these germline V-genes encode key side chain contacts with the viral antigen and thereby dictate key structural features of the hypermutated, high-affinity neutralizing antibody. V-genes may thus encode an innate, protective immunological memory that targets vulnerable, invariant sites on multiple pathogens.

Germline V-genes sculpt the binding site of a family of antibodies neutralizing human cytomegalovirus.,Thomson CA, Bryson S, McLean GR, Creagh AL, Pai EF, Schrader JW EMBO J. 2008 Oct 8;27(19):2592-602. Epub 2008 Sep 4. PMID:18772881[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Thomson CA, Bryson S, McLean GR, Creagh AL, Pai EF, Schrader JW. Germline V-genes sculpt the binding site of a family of antibodies neutralizing human cytomegalovirus. EMBO J. 2008 Oct 8;27(19):2592-602. Epub 2008 Sep 4. PMID:18772881 doi:10.1038/emboj.2008.179

3eyf, resolution 2.30Å

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