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Results 1 - 8 of 8
EC Number
Substrates
Commentary Substrates
Organism
Products
Commentary (Products)
Reversibility
2-amino-3-oxo-4-phosphonooxybutyrate + H2O
step 2 of the overall reaction
3-amino-1-hydroxyacetone 1-phosphate + CO2
i.e. AHAP
?
4-(phosphohydroxy)-L-threonine + NAD+
involved in pyridoxal 5'-phosphate formation
2-amino-3-oxo-4-phosphohydroxybutyrate + NADH
further condensation with 1-deoxy-D-xylulose-5-phosphate to form pyridoxal 5'-phosphate
r
4-(phosphohydroxy)-L-threonine + NAD+
involved in pyridoxal 5'-phosphate formation
2-amino-3-oxo-4-phosphohydroxybutyrate + NADH
undergoes decarboxylation either catalysed by the enzyme or after release, further formation of pyridoxal 5'-phosphate catalysed by PdxJ protein
r
4-(phosphohydroxy)-L-threonine + NAD+
involved in pyridoxal 5'-phosphate formation
3-phosphohydroxy-1aminoacetone + CO2 + NADH + H+
further condensation with 1-deoxy-D-xylulose-5-phosphate to form pyridoxal 5'-phosphate
r
4-(phosphonooxy)threonine + NAD(P)+
fourth step of the pyridoxal 5'-phosphate biosynthesis
2-amino-3-oxo-4-phosphonooxybutyrate + NAD(P)H
-
?
4-(phosphonooxy)threonine + NAD(P)+
i.e. 4-hydroxy-L-threonine phosphate or HTP, enzyme strictly requires the phosphate ester form of the substrate, interaction between enzyme and substrate via phosphate group, step 1 of the overall reaction
2-amino-3-oxo-4-phosphonooxybutyrate + NAD(P)H
reaction intermediate
?
4-(phosphonooxy)threonine + NAD(P)+
involved in the biosynthesis of vitamin B6
3-amino-1-hydroxyacetone 1-phosphate + CO2 + NAD(P)H
-
?
4-(phosphonooxy)threonine + NAD(P)+
i.e. 4-hydroxy-L-threonine-4-phosphate, HTP
3-amino-1-hydroxyacetone 1-phosphate + CO2 + NAD(P)H
i.e. AHAB, primary product of the reaction, no formation of 2-amino-3-oxo-4-phosphonooxybutyrate as intermediate is detected, identification by electrospray ionization mass spectrometry
?
Results 1 - 8 of 8