Target Information
C1q is a sub-component of complement C1. C1q associates with complement components C1r and C1s, which are required for the progression of the proteolytic complement cascade. Deficiency of C1q has been associated with lupus erythematosus and glomerulonephritis. C1q is composed of 18 polypeptide chains: six A-chains, six B-chains, and six C-chains. Each chain contains a collagen-like region located near the N terminus and a C-terminal globular region. The A-, B-, and C-chains are arranged in the order A-C-B on chromosome 1.
Synonyms
AI255395; AI385742; C1q; C1qa; C1qb; C1qc; C1Q-C; C1QG; Ciqc; complement C1q A chain; complement C1q B chain; complement C1q C chain; complement C1q chain A; complement C1q chain B; complement C1q subcomponent subunit A; complement C1q subcomponent subunit A-like protein; Complement C1q subcomponent subunit B; Complement C1q subcomponent subunit C; complement component 1, q subcomponent, A chain; complement component 1, q subcomponent, alpha polypeptide; complement component 1, q subcomponent, B chain; complement component 1, q subcomponent, beta polypeptide; complement component 1, q subcomponent, C chain; complement component 1, q subcomponent, c polypeptide; complement component 1, q subcomponent, gamma polypeptide; complement component C1q, A chain; complement component C1q, B chain; complement subcomponent C1q chain B