Gene Symbol |
A2M
|
Entrez Gene |
2
|
Alt Symbol |
A2MD, CPAMD5, FWP007, S863-7
|
Species |
Human
|
Gene Type |
protein-coding
|
Description |
alpha-2-macroglobulin
|
Other Description |
C3 and PZP-like alpha-2-macroglobulin domain-containing protein 5|alpha-2-M
|
Swissprots |
Q13677 Q68DN2 P01023 Q59F47 Q5QTS0 Q6PN97 Q6PIY3
|
Accessions |
AAK38109 AAK38110 CAA48670 CAA77774 CCO13665 EAW88590 P01023 AB209614 BAD92851 AK307832 AK312482 AY591530 AAT02228 BC026246 AAH26246 BC040071 AAH40071 BX504041 BX647329 BX648622 CR749334 CAH18188 M11313 AAA51551 M36501 AAA51552 XM_006719056 XP_006719119 NM_000014 NP_000005
|
Function |
Is able to inhibit all four classes of proteinases by a unique 'trapping' mechanism. This protein has a peptide stretch, called the 'bait region' which contains specific cleavage sites for different proteinases. When a proteinase cleaves the bait region, a conformational change is induced in the protein which traps the proteinase. The entrapped enzyme remains active against low molecular weight substrates (activity against high molecular weight substrates is greatly reduced). Following cleavage in the bait region a thioester bond is hydrolyzed and mediates the covalent binding of the protein to the proteinase.
|
Subcellular Location |
Secreted {ECO:0000269|PubMed:6203908}.
|
Tissue Specificity |
Secreted in plasma. {ECO:0000269|PubMed:6203908}.
|
Top Pathways |
Complement and coagulation cascades
|