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Entrez GeneID

Protein Accession#

Gene Name

C4BPB

Gene Alias

C4BP

Gene Description

complement component 4 binding protein, beta

Omim ID

Gene Ontology

Gene Summary

This gene encodes a member of a superfamily of proteins composed predominantly of tandemly arrayed short consensus repeats of approximately 60 amino acids. A single, unique beta-chain encoded by this gene assembles with seven identical alpha-chains into the predominant isoform of C4b-binding protein, a multimeric protein that controls activation of the complement cascade through the classical pathway. C4b-binding protein has a regulatory role in the coagulation system also, mediated through the beta-chain binding of protein S, a vitamin K-dependent protein that serves as a cofactor of activated protein C. The genes encoding both alpha and beta chains are located adjacent to each other on human chromosome 1 in the regulator of complement activation gene cluster. Alternative splicing gives rise to multiple transcript variants. [provided by RefSeq

Other Designations

C4b binding protein, beta chain|OTTHUMP00000034288|OTTHUMP00000034289|OTTHUMP00000034375|complement component 4 binding protein, beta chain|complement component 4-binding protein, beta