› 3nra

X-ray diffraction
2.15Å resolution

Crystal structure of an aspartate aminotransferase (YP_354942.1) from Rhodobacter sphaeroides 2.4.1 at 2.15 A resolution

Released:
DOI: 10.2210/pdb3nra/pdb
PDB entry 3nra coloured by chain, front view.
PDB entry 3nra coloured by chain, side view.
PDB entry 3nra coloured by chain, top view.
Source organism: Cereibacter sphaeroides 2.4.1
Entry author: Joint Center for Structural Genomics (JCSG)

Function and Biology Details

Reaction catalysed: 
L-aspartate + 2-oxoglutarate = oxaloacetate + L-glutamate
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-174585 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
aspartate transaminase Chains: A, B
Molecule details ›
Chains: A, B
Length: 407 amino acids
Theoretical weight: 44.15 KDa
Source organism: Cereibacter sphaeroides 2.4.1
Expression system: Escherichia coli
UniProt:
  • Canonical: Q3IWP3 (Residues: 1-406; Coverage: 100%)
Gene name: RSP_3437
Sequence domains: Aminotransferase class I and II
Structure domains:

Ligands and Environments

3 bound ligands:
Ligand CL 11 x CL
Ligand GOL 8 x GOL
Ligand PEG 1 x PEG
3 modified residues:
Ligand MSE 10 x MSE
Ligand LLP 2 x LLP
Ligand CSD 2 x CSD

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL11-1
Spacegroup: P212121
Unit cell:
a: 67.291Å b: 98.517Å c: 127.883Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.156 0.153 0.2
Expression system: Escherichia coli

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