1hfd

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Template:STRUCTURE 1hfd

Contents

HUMAN COMPLEMENT FACTOR D IN A P21 CRYSTAL FORM

Template:ABSTRACT PUBMED 9753554

Disease

[CFAD_HUMAN] Defects in CFD are the cause of complement factor D deficiency (CFDD) [MIM:613912]. CFDD is an immunologic disorder characterized by increased susceptibility to bacterial infections, particularly Neisseria infections, due to a defect in the alternative complement pathway.

Function

[CFAD_HUMAN] Factor D cleaves factor B when the latter is complexed with factor C3b, activating the C3bbb complex, which then becomes the C3 convertase of the alternate pathway. Its function is homologous to that of C1s in the classical pathway.

About this Structure

1hfd is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

  • Jing H, Babu YS, Moore D, Kilpatrick JM, Liu XY, Volanakis JE, Narayana SV. Structures of native and complexed complement factor D: implications of the atypical His57 conformation and self-inhibitory loop in the regulation of specific serine protease activity. J Mol Biol. 1998 Oct 9;282(5):1061-81. PMID:9753554 doi:10.1006/jmbi.1998.2089

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