Search results
Results From The WOW.Com Content Network
C3 convertase (C4bC2b, formerly C4b2a) belongs to family of serine proteases and is necessary in innate immunity as a part of the complement system which eventuate in opsonisation of particles, release of inflammatory peptides, C5 convertase formation and cell lysis.
Complement component 3, often simply called C3, is a protein of the immune system that is found primarily in the blood. It plays a central role in the complement system of vertebrate animals and contributes to innate immunity. In humans it is encoded on chromosome 19 by a gene called C3. [5] [6]
Bb remains bound to C3(H 2 O) to form C3(H 2 O)Bb. This complex is also known as a fluid-phase C3-convertase. This convertase, the alternative pathway C3-convertase, although only produced in small amounts, can cleave multiple C3 proteins into C3a and C3b. The complex is believed to be unstable until it binds properdin, a serum protein. The ...
Cleavage of Arg-Ser bond in complement component C3 alpha-chain to yield C3a and C3b, and Arg- bond in complement component C5 alpha-chain to yield C5a and C5b This enzyme is a bimolecular complex of complement fragment Bb with either C3b or cobra venom factor.
This activated C1 complex cleaves C4 and C2 forming a C4bC2b complex that covalently bonds to the surface of the microbe and functions as a C3 convertase, binding and cleaving C3 into C3a and C3b. Binding of a C3b molecule to the C4bC2b complex (C4b2b3b) results in the formation of a C5 convertase, which cleaves C5 into C5a and C5b.
For premium support please call: 800-290-4726 more ways to reach us
13137 Ensembl ENSG00000196352 ENSMUSG00000026401 UniProt P08174 Q61476 RefSeq (mRNA) NM_000574 NM_001114543 NM_001114544 NM_001114752 NM_001300902 NM_001300903 NM_001300904 NM_007827 NM_001317361 RefSeq (protein) NP_000565 NP_001108224 NP_001287831 NP_001287832 NP_001287833 NP_001304290 NP_031853 NP_001391877 Location (UCSC) Chr 1: 207.32 – 207.39 Mb Chr 1: 130.32 – 130.35 Mb PubMed search ...
The target of C5 convertase is complement protein C5. C5 is a two-chain (α, β) plasma glycoprotein (Mr = 196,000). C5 and C3 have similar structure. However, C5 does not appear to contain the internal thiol ester group reported for C3 and C4.