Magnolysin

Magnolysin
Identifiers
EC number 3.4.24.62
CAS number 162875-09-4
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum

Magnolysin (EC 3.4.24.62, bovine neurosecretory granule protease cleaving pro-oxytocin/neurophysin, pro-oxytocin/neurophysin convertase, prooxyphysin proteinase, pro-oxytocin convertase) is an enzyme.[1][2][3][4][5] This enzyme catalyses the following chemical reaction

Hydrolysis of polypeptides with Arg or Lys in P1 and P2, e.g. to hydrolyse pro-oxytocin at -Lys-Arg-Ala-Val-.

This endopeptidase is present in bovine pituitary neurosecretory granules.

References

  1. Clamagirand, C., Creminon, C., Fahy, C., Boussetta, H. and Cohen, P. (1987). "Partial purification and functional properties of an endoprotease from bovine neurosecretory granules cleaving proocytosin/neurophysin peptides at the basic amino acid doublet". Biochemistry 26: 6018–6023. doi:10.1021/bi00393a011. PMID 2825769.
  2. Créminon, C., Rholam, M., Boussetta, H., Marrakchi, N. and Cohen, P. (1988). "Synthetic peptide substrates as models to study a pro-ocytocin/neurophysin converting enzyme". J. Chromatogt. 440: 439–448. doi:10.1016/s0021-9673(00)94547-3. PMID 3042797.
  3. Brakch, N., Boussetta, H., Rholam, M. and Cohen, P. (1989). "Processing endoprotease recognizes a structural feature at the cleavage site of peptide prohormones. The pro-ocytocin/neurophysin model". J. Biol. Chem. 264: 15912–15916. PMID 2674120.
  4. Plevrakis, I, Créminon, C., Clamagirand, C., Brakch, N., Rholam, M. and Cohen, P. (1989). "Proocytocin/neurophysin convertase from bovine neurohypophysis and corpus luteum secretory granules: complete purification, structure-function relationships, and competitive inhibitor". Biochemistry 28: 2705–2710. doi:10.1021/bi00432a051. PMID 2659078.
  5. Guillou, M.D., Camier, M. and Clamagirand, C. (1994). "Evidence for the presence of pro-oxytocin/neurophysin converting enzyme in the human ovary". J. Endocrinol. 142: 345–352. doi:10.1677/joe.0.1420345. PMID 7931007.

External links

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