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EC 1.2.1.101 Details
EC number
1.2.1.101
Accepted name
L-tyrosine reductase
Reaction
L-tyrosinal + NADP+ + AMP + diphosphate = L-tyrosine + NADPH + H+ + ATP
Other name(s)
lnaA (gene name), lnbA (gene name)
Systematic name
(2S)-2-amino-3-(4-hydroxyphenyl)propanal:NADP+ oxidoreductase (ATP-forming)
CAS registry number
9074-94-6
Comment
The enzyme, characterized from the ascomycete fungus Aspergillus flavus, is specific for L-tyrosine. It contains three domains - an adenylation domain, a peptidyl-carrier protein (PCP) domain, and a reductase domain, and requires activation by attachment of a phosphopantetheinyl group. The enzyme activates its substrate to an adenylate form, followed by a transfer to the PCP domain. The resulting thioester is subsequently transferred to the reductase domain, where it is reduced to the aldehyde.
History
created 2018
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
1.2.1.1 created 1961, modified 1982, modified 2002, deleted 2005
1.2.1.6 created 1961, deleted 1965
1.2.1.14 created 1961, deleted 1984
1.2.1.34 created 1972, deleted 1983 [transferred to EC 1.1.1.180, deleted 1984]
1.2.1.35 created 1972, deleted 1984
1.2.1.37 created 1972, deleted 1984
1.2.1.55 created 1990, deleted 2003
1.2.1.56 created 1990, deleted 2003