Exoenzyme

Exoenzymes are secreted enzymes . The secreted enzymes mostly serve metabolic reactions outside the cell , e.g. B. the breakdown of nutrients. Exoenzymes are often found in Gram-positive bacteria in the inner wall zone or in Gram-negative bacteria in the periplasm , e.g. B. in Clostridium botulinum or Pseudomonas aeruginosa . Some pathogen exoenzymes are pathogenicity factors .

In humans, exoenzymes are z. B. formed as digestive enzymes in salivary glands , in the pancreas and in the lower small intestine . They include α-amylase , pepsin , trypsin , chymotrypsin and elastase .

Web links

• Exoenzymes.
• Definition of Merriam-Webster.

Individual evidence

1. ↑ PG Braun: Microbial exoenzyme production in food. In: Advances in applied microbiology. Volume 61, 2007, pp. 59-87, doi : 10.1016 / S0065-2164 (06) 61003-4 . PMID 17448788 .
2. ^ S. Narumiya, N. Morii: rho gene products, botulinum C3 exoenzyme and cell adhesion. In: Cellular signaling. Volume 5, Number 1, January 1993, pp. 9-19, PMID 8452758 .
3. ↑ DW Frank: The exo-enzymes S regulon of Pseudomonas aeruginosa. In: Molecular microbiology. Volume 26, Number 4, November 1997, pp. 621-629, PMID 9427393 .
4. ↑ J. Coburn: Pseudomonas aeruginosa exoenzyme S. In: Current topics in microbiology and immunology. Volume 175, 1992, pp. 133-143, PMID 1321018 .