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EC 1.2.1.72 Details
EC number
1.2.1.72
Accepted name
erythrose-4-phosphate dehydrogenase
Reaction
D-erythrose 4-phosphate + NAD+ + H2O = 4-phosphoerythronate + NADH + 2 H+
Other name(s)
erythrose 4-phosphate dehydrogenase, E4PDH, GapB, Epd dehydrogenase, E4P dehydrogenase
Systematic name
D-erythrose 4-phosphate:NAD+ oxidoreductase
CAS registry number
131554-04-6
Comment
This enzyme was originally thought to be a glyceraldehyde-3-phosphate dehydrogenase (EC 1.2.1.12), but this has since been disproved, as glyceraldehyde 3-phosphate is not a substrate [1,2]. Forms part of the pyridoxal-5′-phosphate coenzyme biosynthesis pathway in Escherichia coli, along with EC 1.1.1.290 (4-phosphoerythronate dehydrogenase), EC 2.6.1.52 (phosphoserine transaminase), EC 1.1.1.262 (4-hydroxythreonine-4-phosphate dehydrogenase), EC 2.6.99.2 (pyridoxine 5′-phosphate synthase) and EC 1.4.3.5 (pyridoxamine-phosphate oxidase).
History
created 2006
EC Tree
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