C1S gene

complement C1s

The information on this page was automatically extracted from online scientific databases.

From NCBI Gene:

This gene encodes a serine protease, which is a major constituent of the human complement subcomponent C1. C1s associates with two other complement components C1r and C1q in order to yield the first component of the serum complement system. Defects in this gene are the cause of selective C1s deficiency. [provided by RefSeq, Mar 2009]

From UniProt:

C1s B chain is a serine protease that combines with C1q and C1r to form C1, the first component of the classical pathway of the complement system. C1r activates C1s so that it can, in turn, activate C2 and C4.

From NCBI Gene:

  • Complement component c1s deficiency

From UniProt:

Complement component C1s deficiency (C1SD): A rare defect resulting in C1 deficiency and impaired activation of the complement classical pathway. C1 deficiency generally leads to severe immune complex disease with features of systemic lupus erythematosus and glomerulonephritis. [MIM:613783]

Cytogenetic Location: 12p13, which is the short (p) arm of chromosome 12 at position 13

Molecular Location: base pairs 7,060,676 to 7,071,032 on chromosome 12 (Homo sapiens Annotation Release 108, GRCh38.p7) (NCBI)

Cytogenetic Location: 12p13, which is the short (p) arm of chromosome 12 at position 13