CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
3 | Alpha Beta |
|
3.40 | 3-Layer(aba) Sandwich |
|
3.40.1190 | UDP-N-acetylmuramoyl-L-alanine:D-glutamate ligase |
|
3.40.1190.20 | Ribokinase |
Domain Context
CATH Clusters
| Superfamily | 3.40.1190.20 |
| Functional Family |
Enzyme Information
| 4.2.1.136 |
ADP-dependent NAD(P)H-hydrate dehydratase.
based on mapping to UniProt Q833Y3
(1) ADP + (6S)-6-beta-hydroxy-1,4,5,6-tetrahydronicotinamide adenine- dinucleotide = AMP + phosphate + NADH. (2) ADP + (6S)-6-beta-hydroxy-1,4,5,6-tetrahydronicotinamide adenine- dinucleotide phosphate = AMP + phosphate + NADPH.
-!- Acts equally well on hydrated NADH and hydrated NADPH. -!- NAD(P)H spontaneously hydrates to both the (6S)- and (6R)- isomers. -!- The enzyme from bacteria consists of two domains, one of which acts as an NAD(P)H-hydrate epimerase that interconverts the two isomers to a 60:40 ratio (cf. EC 5.1.99.6), while the other catalyzes the dehydration. -!- Hence the enzyme can restore the complete mixture of isomers into NAD(P)H. -!- The enzyme has no activity with ATP, contrary to the enzyme from eukaryotes (cf. EC 4.2.1.93).
|
UniProtKB Entries (1)
| Q833Y3 |
NNRD_ENTFA
Enterococcus faecalis V583
ADP-dependent (S)-NAD(P)H-hydrate dehydratase
|
PDB Structure
| PDB | 2R3B |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | Escherichia |
| Primary Citation |
Crystal structure of a putative kinase in the ribokinase-like superfamily from Enterococcus faecalis V583 (NP_815490.1) at 1.80 A resolution
To be published
|
