› 6gka

X-ray diffraction
1.76Å resolution

20 minute Fe2+ soak structure of SynFtn

Released:
DOI: 10.2210/pdb6gka/pdb
PDB entry 6gka coloured by chain, front view.
PDB entry 6gka coloured by chain, side view.
PDB entry 6gka coloured by chain, top view.
Source organism: Synechococcus sp. CC9311
Primary publication:
Reaction of O2 with a diiron protein generates a mixed-valent Fe2+/Fe3+ center and peroxide.
Bradley JM, Svistunenko DA, Pullin J, Hill N, Stuart RK, Palenik B, Wilson MT, Hemmings AM, Moore GR, Le Brun NE
Proc Natl Acad Sci U S A 116 2058-2067 (2019)
PMID: 30659147

Function and Biology Details

Reaction catalysed: 
(1a) 2 Fe(2+) + O(2) + 4 H(2)O = 2 (FeO(OH)) + 4 H(+) + H(2)O(2)
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo 24-mer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-170962 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Ferritin Chain: A
Molecule details ›
Chain: A
Length: 178 amino acids
Theoretical weight: 19.81 KDa
Source organism: Synechococcus sp. CC9311
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q0I9X8 (Residues: 5-182; Coverage: 98%)
Gene name: sync_1539
Sequence domains: Ferritin-like domain

Ligands and Environments

2 bound ligands:
Ligand FE 3 x FE
Ligand CL 1 x CL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I03
Spacegroup: F432
Unit cell:
a: 177.26Å b: 177.26Å c: 177.26Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.158 0.156 0.186
Expression system: Escherichia coli BL21(DE3)

Quick links

Citations

2 review citations

Metalloproteins in the Biology of Heterocysts.
Pernil et al. (2019)
1 more

2 mentions without citation

Reaction of O2 with a diiron protein generates a mixed-valent Fe2+/Fe3+ center and peroxide.
Bradley et al. (2019)
1 more