PDBe 3zhv

X-ray diffraction
2.3Å resolution

Crystal structure of the SucA domain of Mycobacterium smegmatis KGD, post-decarboxylation intermediate from pyruvate (2-hydroxyethyl-ThDP)

Released:

Function and Biology Details

Reactions catalysed:
Succinyl-CoA + enzyme N(6)-(dihydrolipoyl)lysine = CoA + enzyme N(6)- (S-succinyldihydrolipoyl)lysine. 
2-oxoglutarate + glyoxylate = 2-hydroxy-3-oxoadipate + CO(2). 
2-oxoglutarate = succinate semialdehyde + CO(2). 
2-oxoglutarate + [dihydrolipoyllysine-residue succinyltransferase] lipoyllysine = [dihydrolipoyllysine-residue succinyltransferase] S-succinyldihydrolipoyllysine + CO(2). 
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Multifunctional 2-oxoglutarate metabolism enzyme Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 868 amino acids
Theoretical weight: 97.17 KDa
Source organism: Mycobacterium smegmatis
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: A0R2B1 (Residues: 361-1227; Coverage: 71%)
Gene names: MSMEG_5049, MSMEI_4922, kgd, sucA
Sequence domains:
Structure domains:

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SOLEIL BEAMLINE PROXIMA 1
Spacegroup: P1
Unit cell:
a: 80.464Å b: 83.702Å c: 160.333Å
α: 99.68° β: 98.87° γ: 100.63°
R-values:
R R work R free
0.205 0.203 0.235
Expression system: Escherichia coli BL21(DE3)