Oxytocinase

Oxytocinase is a type of enzyme that metabolizes the endogenous neuropeptide, oxytocin.[1] The most well-characterized oxytocinase is leucyl/cystinyl aminopeptidase,[1][2] which is also an enkephalinase. Other oxytocinases are also known.[1][3]

Inhibitors

Amastatin, bestatin (ubenimex), and puromycin have been found to inhibit the enzymatic degradation of oxytocin, though they also inhibit the degradation of various other peptides, such as vasopressin, met-enkephalin, and dynorphin A.[4][3][5] EDTA, L-methionine, o-phenanthroline, and phosphoramidon have also been found to inhibit the enzymatic degradation of oxytocin.[6]

See also

References

  1. 1 2 3 Tsujimoto M, Hattori A (2005). "The oxytocinase subfamily of M1 aminopeptidases". Biochim. Biophys. Acta. 1751 (1): 9–18. PMID 16054015. doi:10.1016/j.bbapap.2004.09.011.
  2. ↑ Nomura S, Ito T, Yamamoto E, Sumigama S, Iwase A, Okada M, Shibata K, Ando H, Ino K, Kikkawa F, Mizutani S (2005). "Gene regulation and physiological function of placental leucine aminopeptidase/oxytocinase during pregnancy". Biochim. Biophys. Acta. 1751 (1): 19–25. PMID 15894523. doi:10.1016/j.bbapap.2005.04.006.
  3. 1 2 Mizutani S, Yokosawa H, Tomoda Y (1992). "Degradation of oxytocin by the human placenta: effect of selective inhibitors". Acta Endocrinol. 127 (1): 76–80. PMID 1355623. doi:10.1530/acta.0.1270076.
  4. ↑ Meisenberg G, Simmons WH (1984). "Amastatin potentiates the behavioral effects of vasopressin and oxytocin in mice". Peptides. 5 (3): 535–9. PMID 6540873. doi:10.1016/0196-9781(84)90083-4.
  5. ↑ Stancampiano R, Melis MR, Argiolas A (1991). "Proteolytic conversion of oxytocin by brain synaptic membranes: role of aminopeptidases and endopeptidases". Peptides. 12 (5): 1119–25. PMID 1800950. doi:10.1016/0196-9781(91)90068-z.
  6. ↑ Itoh C, Watanabe M, Nagamatsu A, Soeda S, Kawarabayashi T, Shimeno H (1997). "Two molecular species of oxytocinase (L-cystine aminopeptidase) in human placenta: purification and characterization". Biol. Pharm. Bull. 20 (1): 20–4. PMID 9013800. doi:10.1248/bpb.20.20.



This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.