Indicators
Complement C5
Complement C5 (1676 aa, ~188 kDa) is encoded by the human C5 gene. This protein is involved in complement-mediated immunity.
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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.
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Complement component C6 (934 aa, ~105 kDa) is encoded by the human C6 gene. This protein is involved in complement-mediated host defense responses.
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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.
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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.
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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.
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Complement component-4 (1744 aa, ~193 kDa) is part of the complement cascade, which mediates the innate immune response to infection. The full length protein is a precursor that is secreted as a trimeric molecule containing an alpha, beta and gamma chain. When the complement cascade is initiated, the protein is cleaved. This proteolysis releases both the alpha chain, C4 anaphylatoxin, which stimulates inflammation, and a dimer of the beta and gamma chains, which mediates the interaction between the antigen-antibody complex and other complement components.
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An enzyme complex that can reversibly convert ATP and creatine to phosphocreatine and ADP. Cytosolic creatine kinases are comprised of homodimers or heterodimers of creatine kinase B-type protein and creatine kinase M-type protein. Mitochondrial creatine kinases are octomers comprised of either four homodimers of creatine kinase U-type, mitochondrial protein or four creatine kinase S-type, mitochondrial protein homodimers.
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This gene plays a role in transcriptional regulation and in NF-kappa B signal transduction.
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This gene plays a role in protein degradation and cell cycle arrest.
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A natural cyclic polypeptide immunosuppressant isolated from the fungus Beauveria nivea. The exact mechanism of action of cyclosporine is not known but may involve binding to the cellular protein cytophilin, resulting in inhibition of the enzyme calcineurin. This agent appears to specifically and reversibly inhibit immunocompetent lymphocytes in the G0-or G1-phase of the cell cycle. T-lymphocytes are preferentially inhibited with T-helper cells as the primary target. Cyclosporine also inhibits lymphokine production and release. (NCI04)
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Cystatin-B (98 aa, ~11 kDa) is encoded by the human CSTB gene. This protein is involved in the regulation of cathepsins.