Crystal structure of the engineered D-Amino Acid Dehydrogenase (DAADH) bound to NADP+Crystal structure of the engineered D-Amino Acid Dehydrogenase (DAADH) bound to NADP+

Structural highlights

5loa is a 2 chain structure with sequence from Corynebacterium glutamicum ATCC 13032. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.84Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

DAPDH_CORGL Catalyzes the reversible NADPH-dependent reductive amination of L-2-amino-6-oxopimelate, the acyclic form of L-tetrahydrodipicolinate, to generate the meso compound, D,L-2,6-diaminopimelate. Probably plays a role in lysine biosynthesis. Exhibits a high substrate specificity for meso-2,6-diaminopimelate, since L,L-2,6-diaminopimelate, D,D-2,6-diaminopimelate, L-glutamate, L-alanine, L-leucine, L-valine, L-aspartate, L-threonine, L-homoserine, L-methionine, L-lysine, L-serine, L-phenylalanine, L-tyrosine, L-tryptophan, L-ornithine, L-histidine, L-arginine, D-glutamate, and D-alanine are not substrates for the oxidative deamination reaction. Can use NAD(+) only poorly since the activity observed in the presence of NAD(+) is about 3% of that with NADP(+).[1] [2]

References

  1. Reddy SG, Scapin G, Blanchard JS. Expression, purification, and crystallization of meso-diaminopimelate dehydrogenase from Corynebacterium glutamicum. Proteins. 1996 Aug;25(4):514-6. PMID:8865347 doi:http://dx.doi.org/10.1002/prot.12
  2. Reddy SG, Scapin G, Blanchard JS. Expression, purification, and crystallization of meso-diaminopimelate dehydrogenase from Corynebacterium glutamicum. Proteins. 1996 Aug;25(4):514-6. PMID:8865347 doi:http://dx.doi.org/10.1002/prot.12

5loa, resolution 1.84Å

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