› 6l8d

X-ray diffraction
2.91Å resolution

Hexameric structure of the ATPase subunit of magnesium chelatase

Released:
DOI: 10.2210/pdb6l8d/pdb
PDB entry 6l8d coloured by chain, front view.
PDB entry 6l8d coloured by chain, side view.
PDB entry 6l8d coloured by chain, top view.
Source organism: Synechocystis sp. PCC 6803 substr. Kazusa
Primary publication:
Hexameric structure of the ATPase motor subunit of magnesium chelatase in chlorophyll biosynthesis.
Gao YS, Wang YL, Wang X, Liu L
Protein Sci 29 1040-1046 (2020)
PMID: 31891428

Function and Biology Details

Reaction catalysed: 
ATP + protoporphyrin IX + Mg(2+) + H(2)O = ADP + phosphate + Mg-protoporphyrin IX + 2 H(+)
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo hexamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-156379 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Magnesium-chelatase subunit ChlI Chains: A, B, C, D, E, F
Molecule details ›
Chains: A, B, C, D, E, F
Length: 365 amino acids
Theoretical weight: 40.58 KDa
Source organism: Synechocystis sp. PCC 6803 substr. Kazusa
Expression system: Escherichia coli
UniProt:
  • Canonical: P51634 (Residues: 1-357; Coverage: 100%)
Gene names: chlI, slr1030
Sequence domains:

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL17U
Spacegroup: C2
Unit cell:
a: 211.034Å b: 121.149Å c: 119.419Å
α: 90° β: 99.06° γ: 90°
R-values:
R R work R free
0.234 0.233 0.252
Expression system: Escherichia coli

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Citations

1 review citation

The requirement for cobalt in vitamin B12: A paradigm for protein metalation.
Osman et al. (2021)
9 other articles

1 mention without citation

Hexameric structure of the ATPase motor subunit of magnesium chelatase in chlorophyll biosynthesis.
Gao et al. (2020)