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1dhp
From Proteopedia
| 1dhp, resolution 2.30Å () | |||||
|---|---|---|---|---|---|
| Sites: | |||||
| Ligands: | |||||
| Gene: | DAPA (Escherichia coli) | ||||
| Activity: | Dihydrodipicolinate synthase, with EC number 4.2.1.52 | ||||
| Domains: | DHDPS, PRK03170 | ||||
| |||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||
| Coordinates: | save as pdb, mmCIF, xml | ||||
DIHYDRODIPICOLINATE SYNTHASE
The crystal structure of dihydrodipicolinate synthase from E. coli was determined by multiple isomorphous replacement methods. The structure was refined at a resolution of 2.5 A and the final R-factor is 19.6% for 32,190 reflections between 10.0 A and 2.5 A and F > 2 sigma (F). The crystallographic asymmetric unit contains two monomers related by approximate 2-fold symmetry. A tetramer with approximate 222 symmetry is built up by crystallographic symmetry. The tetramer is almost planar with no contacts between the subunits related by the non-crystallographic dyad. The active sites are accessible from a wide water-filled channel in the center of the tetramer. The dihydrodipicolinate synthase monomer is composed of two domains. Each polypeptide chain is folded into an 8-fold alpha/beta barrel and a C-terminal alpha-helical domain comprising residues 224 to 292. The fold is similar to that of N-acetylneuraminate lyase. The active site lysine 161 is located in the alpha/beta barrel and has access via two entrances from the C-terminal side of the barrel.
The crystal structure of dihydrodipicolinate synthase from Escherichia coli at 2.5 A resolution., Mirwaldt C, Korndorfer I, Huber R, J Mol Biol. 1995 Feb 10;246(1):227-39. PMID:7853400
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
About this Structure
1DHP is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
Reference
The crystal structure of dihydrodipicolinate synthase from Escherichia coli at 2.5 A resolution., Mirwaldt C, Korndorfer I, Huber R, J Mol Biol. 1995 Feb 10;246(1):227-39. PMID:7853400
Page seeded by OCA on Mon Jun 30 23:04:54 2008
