EC Number |
Substrates |
Organism |
Products |
Reversibility |
---|
1.17.1.8 | 2,3-dihydrodipicolinate + NADH + H+ |
- |
Thermotoga maritima |
2,3,4,5-tetrahydrodipicolinate + NAD+ + H2O |
- |
r |
1.17.1.8 | 2,3-dihydrodipicolinate + NADH + H+ |
- |
Mycobacterium tuberculosis H37Rv |
2,3,4,5-tetrahydrodipicolinate + NAD+ + H2O |
- |
r |
1.17.1.8 | 2,3-dihydrodipicolinate + NADH + H+ |
- |
Thermotoga maritima MSB8 / DSM 3109 / ATCC 43589 |
2,3,4,5-tetrahydrodipicolinate + NAD+ + H2O |
- |
r |
1.17.1.8 | 2,3-dihydrodipicolinate + reduced 3-acetylpyridine adenine dinucleotide |
- |
Escherichia coli |
2,3,4,5-tetrahydrodipicolinate + oxidized 3-acetylpyridine adenine dinucleotide |
- |
? |
1.17.1.8 | 2,3-dihydrodipicolinate + reduced 3-acetylpyridine adenine dinucleotide |
- |
Escherichia coli |
2,3,4,5-tetrahydrodipicolinate + oxidized 3-acetylpyridine adenine dinucleotide + H2O |
- |
r |
1.17.1.8 | 2,3-dihydrodipicolinate + reduced nicotinamide hypoxanthine dinucleotide phosphate |
- |
Escherichia coli |
2,3,4,5-tetrahydrodipicolinate + oxidized nicotinamide hypoxanthine dinucleotide phosphate + H2O |
- |
r |
1.17.1.8 | 2,3-dihydrodipicolinate + thio-NADPH + H+ |
- |
Escherichia coli |
2,3,4,5-tetrahydrodipicolinate + thio-NADP+ + H2O |
- |
r |
1.17.1.8 | (4S)-4-hydroxy-2,3,4,5-tetrahydro-(2S)-dipicolinate + NADPH + H+ |
- |
Escherichia coli |
? |
- |
r |
1.17.1.8 | more |
DHDPR accepts (4S)-4-hydroxy-2,3,4,5-tetrahydro-(2S)-dipicolinic acid as true substrate rather than dihydrodipicolinate, suggesting that DHDPR catalyzes an overall deoxygenation reaction, likely by a dehydratase-reductase route, substrate specificity, overview. A critical role is played by residue His 159 in the catalytic mechanism of DHDPR. Replacement of this residue with an alanine or a glutamine is reported to result in a 150-200fold reduction in catalytic rate as well as a 6fold increase in KM. His 159 has been proposed to act as a general acid during catalysis, providing the proton required after hydride addition. No activity with beta-hydroxypyruvate and 3-fluoropyruvate |
Escherichia coli |
? |
- |
? |
1.17.1.8 | pyridine dicarboxylate + NADH + H+ |
stable substrate analog, 25 mM phosphate D2O (deuterium water) buffer, pH 7.8 for NMR analysis of binding interactions with saturation transfer difference titration studies at 298 K (25°C) |
Escherichia coli |
reduced pyridine dicarboxylate + NAD+ |
- |
? |