C1q Antibodies

Mouse Gene ID: 12259

Description: Involved in several processes, including complement-mediated synapse pruning; microglial cell activation; and nervous system development. Acts upstream of or within complement activation, classical pathway. Located in postsynapse. Is expressed in brain; foot; genitourinary system; and pancreas. Used to study epilepsy and systemic lupus erythematosus. Human ortholog(s) of this gene implicated in glomerulonephritis. Orthologous to human C1QA (complement C1q A chain).

Mouse UniProt ID: P98086 

Function: C1q associates with the proenzymes C1r and C1s to yield C1, the first component of the serum complement system. The collagen-like regions of C1q interact with the Ca2+-dependent C1r2C1s2 proenzyme complex, and efficient activation of C1 takes place on interaction of the globular heads of C1q with the Fc regions of IgG or IgM antibody present in immune complexes.

Molecular Function: Complement pathway, Immunity, Innate immunity

Subcellular location: secreted

kDa: 26

C1q; AdicNA