6ilj

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Cryo-EM structure of Echovirus 6 complexed with its attachment receptor CD55 at PH 5.5Cryo-EM structure of Echovirus 6 complexed with its attachment receptor CD55 at PH 5.5

Structural highlights

6ilj is a 5 chain structure with sequence from Echovirus e6 and Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:CD55, CR, DAF (HUMAN)
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[DAF_HUMAN] This protein recognizes C4b and C3b fragments that condense with cell-surface hydroxyl or amino groups when nascent C4b and C3b are locally generated during C4 and c3 activation. Interaction of daf with cell-associated C4b and C3b polypeptides interferes with their ability to catalyze the conversion of C2 and factor B to enzymatically active C2a and Bb and thereby prevents the formation of C4b2a and C3bBb, the amplification convertases of the complement cascade.[1]

References

  1. Ward T, Pipkin PA, Clarkson NA, Stone DM, Minor PD, Almond JW. Decay-accelerating factor CD55 is identified as the receptor for echovirus 7 using CELICS, a rapid immuno-focal cloning method. EMBO J. 1994 Nov 1;13(21):5070-4. PMID:7525274

6ilj, resolution 3.60Å

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