› 6aik

X-ray diffraction
1.83Å resolution

Cab2 mutant H337A complex with phosphopantothenoyl-CMP

Released:
DOI: 10.2210/pdb6aik/pdb
PDB entry 6aik coloured by chain, front view.
PDB entry 6aik coloured by chain, side view.
PDB entry 6aik coloured by chain, top view.
Source organism: Saccharomyces cerevisiae S288C
Primary publication:
Crystallographic Analysis of the Catalytic Mechanism of Phosphopantothenoylcysteine Synthetase from Saccharomyces cerevisiae.
Zheng P, Zhang M, Khan MH, Liu H, Jin Y, Yue J, Gao Y, Teng M, Zhu Z, Niu L
J Mol Biol 431 764-776 (2019)
PMID: 30653991

Function and Biology Details

Reaction catalysed: 
CTP + (R)-4'-phosphopantothenate + L-cysteine = CMP + diphosphate + N-((R)-4'-phosphopantothenoyl)-L-cysteine
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-154130 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Phosphopantothenate--cysteine ligase CAB2 Chains: A, B
Molecule details ›
Chains: A, B
Length: 371 amino acids
Theoretical weight: 42.68 KDa
Source organism: Saccharomyces cerevisiae S288C
Expression system: Escherichia coli
UniProt:
  • Canonical: P40506 (Residues: 1-365; Coverage: 100%)
Gene names: CAB2, YIL083C
Sequence domains: DNA / pantothenate metabolism flavoprotein

Ligands and Environments

1 bound ligand:
Ligand PMT 2 x PMT
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL19U1
Spacegroup: P21
Unit cell:
a: 51.758Å b: 112.513Å c: 55.831Å
α: 90° β: 91.56° γ: 90°
R-values:
R R work R free
0.18 0.178 0.219
Expression system: Escherichia coli

Quick links

Citations

1 review citation

Vitamin in the Crosshairs: Targeting Pantothenate and Coenzyme A Biosynthesis for New Antituberculosis Agents.
Butman et al. (2020)
1 other article

1 mention without citation

The Coenzyme A Level Modulator Hopantenate (HoPan) Inhibits Phosphopantotenoylcysteine Synthetase Activity.
Mostert et al. (2021)