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To provide more context, in the latter study, the previously noted bimodular structure (C4A-C4B) has been updated to a quadrimodular structure of one to four discrete segments, containing one or more RP-C4-CYP21-TNX modules. [2] The size of either C4A or C4B gene can be 21 kb (long, L) or 14.6 kb (short, S).
12268 Ensembl ENSG00000244207 ENSG00000206340 ENSG00000244731 ENSG00000227746 ENSMUSG00000073418 UniProt P0C0L4 P01029 RefSeq (mRNA) NM_001252204 NM_007293 NM_009780 RefSeq (protein) NP_001239133 NP_009224 NP_033910 Location (UCSC) Chr 6: 31.98 – 32 Mb Chr 17: 34.95 – 34.96 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Complement C4-A is a kind of the Complement component 4 ...
Anaphylatoxins, or complement peptides, are fragments (C3a, C4a and C5a) that are produced as part of the activation of the complement system. [2] Complement components C3, C4 and C5 are large glycoproteins that have important functions in the immune response and host defense. [ 3 ]
The C4 gene encodes the complement component 4, which is involved in the complement system and is an important part of the innate immune system. The gene has two forms: C4A and C4B, encoding form A and B of the complement component 4 protein, respectively. [22]
The complement system, also known as complement cascade, is a part of the humoral, innate immune system and enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promote inflammation, and attack the pathogen's cell membrane. [1]
C. C1 complex; C1-inhibitor; C3-convertase; C3a (complement) C3b; C4A; C5-convertase; C8 complex; Cell-bound complement activation products; Classical complement pathway
The MASPs are very similar to C1r and C1s molecules of the classical complement pathway. When the carbohydrate-recognising heads of MBL bind to specifically arranged mannose residues on the surface of a pathogen, MASP-1 and MASP-2 are activated to cleave complement components C4 and C2 into C4a, C4b, C2a, and C2b. In f, two smaller MBL ...
The classical pathway is distinct from the other complement pathways in its unique activation triggers and cascade sequence. Activation of the complement pathway through the classical, lectin or alternative complement pathway is followed by a cascade of reactions eventually leading to the membrane attack complex.