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Article
Research record from PeerJ, 2026-08-17. PMID 42626667.
Article
Research record from BMJ Open Respir Res, 2026-03-27. PMID 41895789.
Indicators
Complement C2 (752 aa, ~83 kDa) is encoded by the human C2 gene. This protein is involved in post-translational protein processing and complement activity.
Indicators
Complement C5 (1676 aa, ~188 kDa) is encoded by the human C5 gene. This protein is involved in complement-mediated immunity.
Indicators
A protein complex composed of 18 complement component 1q (C1q) subcomponent chains: six C1qA, six C1qB and six C1qC. The C1q complex is part of the complement component C1 complex (C1 complex) and undergoes confirmational rearrangement following binding of pentraxins or antigen-antibody complexes that include either immunoglobulin M (IgM) or several IgG molecules. These confirmational changes activate the C1r chains of the C1 complex, which, in turn, cleaves C1s chains of the C1 complex. Following C1s cleavage, the C1 complex can proteolytically activate C2 and C4 and promotes formation of C3-convertase, which cleaves C3 and activates the classical complement pathway.
Indicators
Complement component C6 (934 aa, ~105 kDa) is encoded by the human C6 gene. This protein is involved in complement-mediated host defense responses.
Indicators
Complement component C7 (843 aa, ~94 kDa) is encoded by the human C7 gene. This protein is involved in insertion of the membrane attack complex in lipid bilayers.
Indicators
A heterotrimeric protein complex composed of complement component 8 (C8) chains alpha, beta and gamma. The alpha and gamma chains form a disulfide-linked dimer that is noncovalently associated with the beta chain. C8 inserts itself into target cell membranes following formation of the C5b-6-7 complex and then recruits 10-16 molecules of C9 to complete the formation of the membrane attack complex.
Indicators
Complement component C9 (559 aa, ~63 kDa) is encoded by the human C9 gene. This protein plays a role in complement-mediated bacterial cell lysis.
Tests
The determination of the amount of complement factor H-related Protein 1 in a sample.
Article
Research record from Diagnostics (Basel), 2026-05-16. PMID 42196882.
Glossary Term
A range of values for a parameter that may contain the parameter and the degree of confidence that it is in fact there.
