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EC 2.6.1.83 Details
EC number
2.6.1.83
Accepted name
LL-diaminopimelate aminotransferase
Reaction
LL-2,6-diaminoheptanedioate + 2-oxoglutarate = (S)-2,3,4,5-tetrahydropyridine-2,6-dicarboxylate + L-glutamate + H2O
Other name(s)
LL-diaminopimelate transaminase, LL-DAP aminotransferase, LL-DAP-AT
Systematic name
LL-2,6-diaminoheptanedioate:2-oxoglutarate aminotransferase
CAS registry number
949001-34-7
Comment
A pyridoxal-phosphate enzyme. In vivo, the reaction occurs in the opposite direction to that shown above. This is one of the final steps in the lysine-biosynthesis pathway of plants (ranging from mosses to flowering plants). meso-Diaminoheptanedioate, an isomer of LL-2,6-diaminoheptanedioate, and the structurally related compounds lysine and ornithine are not substrates. 2-Oxoglutarate cannot be replaced by oxaloacetate or pyruvate. It is not yet known if the substrate of the biosynthetic reaction is the cyclic or acyclic form of tetrahydropyridine-2,6-dicarboxylate.
History
created 2006
EC Tree
2.6.1.10 created 1961, deleted 1972
2.6.1.20 created 1965, deleted 1972
2.6.1.25 created 1972, deleted 1984
2.6.1.53 created 1972, deleted 1976
2.6.1.61 created 1982, deleted 2004
2.6.1.69 created 1989, deleted 2004