Streptogrisin B

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other names

Pronase enzyme B, SGPB, Serine protease B

Existing structure data : PDB  1CSO , PDB  1CT0 , PDB  1CT2

Mass / length primary structure 299 amino acids , 30,554 Da
External IDs
Enzyme classification
EC, category

Streptogrisin B is an enzyme from Streptomyces griseus .


Streptogrisin B is a serine protease and is produced as a zymogen . Streptogrisin B hydrolyzes proteins into larger aliphatic or aromatic amino acids , similar to chymotrypsin . It has disulfide bridges . Streptogrisin B is secreted by Lysobacter enzymogenes , presumably to break down proteins in the environment as a digestive enzyme .

See also

Web links

Individual evidence

  1. a b c sprB - Streptogrisin-B precursor - Streptomyces griseus - sprB gene & protein. In: June 20, 2018, accessed June 23, 2018 .
  2. ^ Donald Voet, Judith G. Voet: Biochemistry , 4th edition. John Wiley & Sons, 2010, ISBN 978-1-118-13993-6 . P. 524.