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EC 3.3.2.12 Details
EC number
3.3.2.12
Accepted name
oxepin-CoA hydrolase
Reaction
2-oxepin-2(3H)-ylideneacetyl-CoA + H2O = 3-oxo-5,6-dehydrosuberyl-CoA semialdehyde
Other name(s)
paaZ (gene name)
Systematic name
2-oxepin-2(3H)-ylideneacetyl-CoA hydrolase
Comment
The enzyme from Escherichia coli is a bifunctional fusion protein that also catalyses EC 1.17.1.7, 3-oxo-5,6-dehydrosuberyl-CoA semialdehyde dehydrogenase.Combined the two activities result in a two-step conversion of oxepin-CoA to 3-oxo-5,6-dehydrosuberyl-CoA, part of an aerobic phenylacetate degradation pathway [1,3,4]. The enzyme from Escherichia coli also exhibits enoyl-CoA hydratase activity utilizing crotonyl-CoA as a substrate [2].
History
created 2011 as EC 3.7.1.16, transferred 2013 to EC 3.3.2.12
EC Tree
1.1.1.68 created 1965, deleted 1978 [transferred to EC 1.1.99.15, deleted 1980]
1.1.1.70 created 1965, deleted 1978
1.1.1.74 created 1972, deleted 1976
1.1.1.89 created 1972, deleted 1976
1.1.1.109 created 1972, deleted 1976
1.1.1.139 created 1972, deleted 1978
1.1.1.155 created 1976, deleted 2004
1.1.1.171 created 1978, deleted 1984
1.1.1.180 created 1983, deleted 1984
1.1.1.182 created 1983, deleted 1990
1.1.1.204 created 1972 as EC 1.2.1.37, transferred 1984 to EC 1.1.1.204, modified 1989, deleted 2004
1.1.1.242 created 1992, deleted 2001
1.1.1.249 provisional version created 1999, deleted 1999 (reinstated 2001 as EC 2.5.1.46)
1.1.1.253 created 1999, deleted 2003