STRUCTURE OF A SOLUBLE, GLYCOSYLATED FORM OF THE HUMAN COMPLEMENT REGULATORY PROTEIN CD59STRUCTURE OF A SOLUBLE, GLYCOSYLATED FORM OF THE HUMAN COMPLEMENT REGULATORY PROTEIN CD59

Structural highlights

1cdq is a 1 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:Solution NMR
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

CD59_HUMAN Defects in CD59 are the cause of CD59 deficiency (CD59D) [MIM:612300.[1]

Function

CD59_HUMAN Potent inhibitor of the complement membrane attack complex (MAC) action. Acts by binding to the C8 and/or C9 complements of the assembling MAC, thereby preventing incorporation of the multiple copies of C9 required for complete formation of the osmolytic pore. This inhibitor appears to be species-specific. Involved in signal transduction for T-cell activation complexed to a protein tyrosine kinase. The soluble form from urine retains its specific complement binding activity, but exhibits greatly reduced ability to inhibit MAC assembly on cell membranes.

Evolutionary Conservation

 

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

References

  1. Motoyama N, Okada N, Yamashina M, Okada H. Paroxysmal nocturnal hemoglobinuria due to hereditary nucleotide deletion in the HRF20 (CD59) gene. Eur J Immunol. 1992 Oct;22(10):2669-73. PMID:1382994 doi:http://dx.doi.org/10.1002/eji.1830221029
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