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Description for Protein -

Complement component 4B, telomeric
1 total interacting proteins; 1 platelet interacting proteins
Icon Book Platelet Evidence (proteome studies/others : 0/0)
(Not detected in platelets)
Summary:
This gene encodes the basic form of complement factor 4, part of the classical activation pathway. The protein is expressed as a single chain precursor which is proteolytically cleaved into a trimer of alpha, beta, and gamma chains prior to secretion. The trimer provides a surface for interaction between the antigen-antibody complex and other complement components. The alpha chain may be cleaved to release C4 anaphylatoxin, a mediator of local inflammation. Deficiency of this protein is associated with systemic lupus erythematosus. This gene localizes to the major histocompatibility complex (MHC) class III region on chromosome 6. Varying haplotypes of this gene cluster exist, such that individuals may have 1, 2, or 3 copies of this gene. In addition, this gene exists as a long form and a short form due to the presence or absence of a 6.4 kb endogenous HERV-K retrovirus in intron 9. This record represents the second, more telomeric copy of this gene found in some haplotypes. (PubMed Links)
Domains and Motifs:
None Available
Gene Ontology:
Gene Ontology Annotations
KEGG - Enzyme ID(s):
None Available
KEGG - Orthology:
None Available
KEGG - Pathway(s):
None Available
Nomenclature / Alternative Names:
-
Approved Symbol:

(De-) Phosphorylations:
Total (de-) phosphorylation sites: 1
Human (de-) phosphorylation sites: 1; No platelet phosphorylation sites
Phosphorylation Targets:
Total phosphorylation targets: 0
Human phosphorylation targets: 0;Predicted platelet targets: 0
Protein Characteristics:
Isoform-specific Information
Icon DrugsAssociated Drugs (DrugBank Accession):

None Available

Associated Genetic Diseases:

None Available
Predicted Transmembrane Domains:
  • Isoform 1 : 0
    • Additional Identifiers:

    HPRD: 18631 Entrez Gene ID: 432395 OMIM ID: - Swissprot Accession: -