› 2q5b

X-ray diffraction
1.45Å resolution

High resolution structure of Plastocyanin from Phormidium laminosum

Released:
DOI: 10.2210/pdb2q5b/pdb
PDB entry 2q5b coloured by chain, front view.
PDB entry 2q5b coloured by chain, side view.
PDB entry 2q5b coloured by chain, top view.
Source organism: Phormidium laminosum
Entry authors: Fromme R, Bukhman-DeRuyter YS, Grotjohann I, Mi H, Fromme P

Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assemblies composition:
monomeric (preferred)
homo trimer
Assembly name:
PDBe Complex ID:
PDB-CPX-175979 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Plastocyanin Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 105 amino acids
Theoretical weight: 11.43 KDa
Source organism: Phormidium laminosum
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: Q51883 (Residues: 35-139; Coverage: 100%)
Gene name: petE
Sequence domains: Copper binding proteins, plastocyanin/azurin family
Structure domains: Cupredoxins - blue copper proteins

Ligands and Environments

4 bound ligands:
Ligand CU 3 x CU
Ligand ZN 4 x ZN
Ligand K 5 x K
Ligand ACT 1 x ACT
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.1
Spacegroup: P43212
Unit cell:
a: 84.329Å b: 84.329Å c: 90.536Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.191 0.19 0.21
Expression system: Escherichia coli BL21

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