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Substance Name: Rennin
RN: 9001-98-3


  • A family of neutral serine proteases with CHYMOTRYPSIN-like activity. Chymases are primarily found in the SECRETORY GRANULES of MAST CELLS and are released during mast cell degranulation.
  • The predominant milk-clotting enzyme from the true stomach or abomasum of the suckling calf. It is secreted as an inactive precursor called prorennin and converted in the acid environment of the stomach to the active enzyme. EC

Molecular Formula

  • Unspecified
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Names and Synonyms

Name of Substance

  • Rennin

MeSH Headings

  • Chymases
  • Chymosin


  • Abomasal enzyme
  • Chymase
  • Chymosin
  • EC 34234
  • EC 3443
  • EINECS 232-645-0
  • HSDB 1963
  • LAB
  • LAB Ferment
  • LAB Ferment [German]
  • Rennase
  • Rennin

Systematic Name

  • Rennin

Superlist Names

  • Chymosin
  • Rennin

Registry Numbers

CAS Registry Number

  • 9001-98-3


  • VT6PI051PW

System Generated Number

  • 0009001983