IUBMB Enzyme Nomenclature


Accepted name: pseudolysin

Reaction: Hydrolysis of proteins including elastin, collagen types III and IV, fibronectin and immunoglobulin A, generally with bulky hydrophobic group at P1'. Insulin B chain cleavage pattern identical to that of thermolysin, but specificity differs in other respects

Other names: Pseudomonas elastase; Pseudomonas aeruginosa neutral metalloproteinase

Comment: In peptidase family M4 (thermolysin family). From the pathogenic bacteria Pseudomonas aeruginosa and Legionella pneumophila, and causes tissue damage.

Links to other databases: BRENDA, EXPASY, KEGG, MEROPS, Metacyc, PDB, CAS registry number: 171715-23-4


1. Morihara, K. and Tsuzuki, H. Pseudomonas aeruginosa elastase: affinity chromatography and some properties as a metallo-neutral proteinase. Agric. Biol. Chem. 39 (1975) 1123-1128

2. Nishino, N. and Powers, J.C. Pseudomonas aeruginosa elastase. Development of a new substrate, inhibitors, and an affinity ligand. J. Biol. Chem. 255 (1980) 3482-3486. [PMID: 6767718]

3 Dreyfus, L.A. and Iglewski, B.H. Purification and characterization of an extracellular protease of Legionella pneumophila. Infect. Immun. 70 (1986) 736-743. [PMID: 3512431]

4. Bever, R.A. and Iglewski, B.H. Molecular characterization and nucleotide sequence of the Pseudomonas aeruginosa elastase structural gene. J. Bacteriol. 170 (1988) 4309-4314. [PMID: 2842313]

5. Black W.J., Quinn, F.D. and Tompkins, L.S. Legionella pneumophila zinc metalloprotease is structurally and functionally homologous to Pseudomonas aeruginosa elastase. J. Bacteriol. 172 (1990) 2608-2613. [PMID: 2110146]

[EC created 1972 as EC, part transferred 1992 to EC]

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