Alpha 2-antiplasmin

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An Error has occurred retrieving Wikidata item for infobox Alpha 2-antiplasmin (or α2-antiplasmin or plasmin inhibitor) is a serine protease inhibitor (serpin) responsible for inactivating plasmin.[1] Plasmin is an important enzyme that participates in fibrinolysis and degradation of various other proteins. This protein is encoded by the SERPINF2 gene.[2]

Fibrinolysis (simplified). Blue arrows denote stimulation, and red arrows inhibition.

Role in disease

Very few cases (<20) of A2AP deficiency have been described. As plasmin degrades blood clots, impaired inhibition of plasmin leads to a bleeding tendency, which was severe in the cases reported.

In liver cirrhosis, there is decreased production of alpha 2-antiplasmin, leading to decreased inactivation of plasmin and an increase in fibrinolysis. This is associated with an increase risk of bleeding in liver disease.[3]

Interactions

Alpha 2-antiplasmin has been shown to interact with:

See also

References

  1. ^ Wu, Guojie; Quek, Adam J.; Caradoc-Davies, Tom T.; Ekkel, Sue M.; Mazzitelli, Blake; Whisstock, James C.; Law, Ruby H.P. (2019-03-05). "Structural studies of plasmin inhibition". Biochemical Society Transactions. 47 (2): 541–557. doi:10.1042/bst20180211. ISSN 0300-5127. PMID 30837322. S2CID 73463150.
  2. ^ "Entrez Gene: SERPINF2 serpin peptidase inhibitor, clade F (alpha-2 antiplasmin, pigment epithelium derived factor), member 2".
  3. ^ Sattar, Husain. Fundamentals of Pathology. Pathoma LLC, 2011, p. 36.
  4. ^ a b Shieh BH, Travis J (May 1987). "The reactive site of human alpha 2-antiplasmin". The Journal of Biological Chemistry. 262 (13): 6055–9. doi:10.1016/S0021-9258(18)45536-6. PMID 2437112.
  5. ^ Brower MS, Harpel PC (Aug 1982). "Proteolytic cleavage and inactivation of alpha 2-plasmin inhibitor and C1 inactivator by human polymorphonuclear leukocyte elastase". The Journal of Biological Chemistry. 257 (16): 9849–54. doi:10.1016/S0021-9258(18)34149-8. PMID 6980881.
  6. ^ Wiman B, Collen D (Sep 1979). "On the mechanism of the reaction between human alpha 2-antiplasmin and plasmin". The Journal of Biological Chemistry. 254 (18): 9291–7. doi:10.1016/S0021-9258(19)86843-6. PMID 158022.

Further reading

External links