The Enzyme Database

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Accepted name: 6-aminohexanoate-oligomer endohydrolase
Reaction: [N-(6-aminohexanoyl)]n + H2O = [N-(6-aminohexanoyl)]n-x + [N-(6-aminohexanoyl)]x
Other name(s): endo-type 6-aminohexanoate oligomer hydrolase; Ahx endo-type-oligomer hydrolase; 6-aminohexanoate oligomer hydrolase; Ahx-oligomer hydrolase; nylon hydrolase; nylon-oligomer hydrolase; NylC; nylon-6 hydrolase (ambiguous)
Systematic name: 6-aminohexanoate oligomer endoamidohydrolase
Comments: The enzyme is involved in degradation of nylon-6 oligomers. It degrades linear or cyclic oligomers of poly(6-aminohexanoate) with a degree of polymerization greater than three (n > 3) by endo-type cleavage, to oligomers of a length of two or more (2 ≤ x < n). It shows negligible activity with N-(6-aminohexanoyl)-6-aminohexanoate (cf. EC, 6-aminohexanoate-oligomer exo hydrolase) or with 1,8-diazacyclotetradecane-2,9-dione (cf. EC, 6-aminohexanoate-cyclic-dimer hydrolase).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
1.  Kakudo, S., Negoro, S., Urabe, I. and Okada, H. Nylon oligomer degradation gene, nylC, on plasmid pOAD2 from a Flavobacterium strain encodes endo-type 6-aminohexanoate oligomer hydrolase: purification and characterization of the nylC gene product. Appl. Environ. Microbiol. 59 (1993) 3978–3980. [PMID: 8285701]
2.  Yasuhira, K., Tanaka, Y., Shibata, H., Kawashima, Y., Ohara, A., Kato, D., Takeo, M. and Negoro, S. 6-Aminohexanoate oligomer hydrolases from the alkalophilic bacteria Agromyces sp. strain KY5R and Kocuria sp. strain KY2. Appl. Environ. Microbiol. 73 (2007) 7099–7102. [DOI] [PMID: 17827307]
3.  Negoro, S., Shibata, N., Tanaka, Y., Yasuhira, K., Shibata, H., Hashimoto, H., Lee, Y.H., Oshima, S., Santa, R., Oshima, S., Mochiji, K., Goto, Y., Ikegami, T., Nagai, K., Kato, D., Takeo, M. and Higuchi, Y. Three-dimensional structure of nylon hydrolase and mechanism of nylon-6 hydrolysis. J. Biol. Chem. 287 (2012) 5079–5090. [DOI] [PMID: 22187439]
[EC created 2014]

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