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Crystal Structure of Cytochrome b561

X-ray diffraction
1.7Å resolution
PDB entry 4o6y coloured by chain, front view.
PDB entry 4o6y coloured by chain, side view.
PDB entry 4o6y coloured by chain, top view.
Source organism: Arabidopsis thaliana
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Transmembrane ascorbate ferrireductase 2
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Multimeric state: homo dimer
Accessible surface area: 18443.07 Å2
Buried surface area: 7762.01 Å2
Dissociation area: 1,410.5 Å2
Dissociation energy (ΔGdiss): 19.79 kcal/mol
Dissociation entropy (TΔSdiss): 13.07 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-193555

Macromolecules

Transmembrane ascorbate ferrireductase 2
Chains: A, B
Length: 230 amino acids
Theoretical weight: 25.31 KDa
Source organism: Arabidopsis thaliana
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9SWS1 (Residues: 1-230; Coverage: 100%)
Gene names: ACYB-1, At5g38630, CYB-1, CYB561B, CYB561B2, CYBASC2, CYTB561, MBB18.18
Pfam: Eukaryotic cytochrome b561
InterPro:
CATH: Four Helix Bundle (Hemerythrin (Met), subunit A)
Transmembrane ascorbate ferrireductase 2 in PDB entry 4o6y, assembly 1, front view.
Transmembrane ascorbate ferrireductase 2 in PDB entry 4o6y, assembly 1, side view.
Transmembrane ascorbate ferrireductase 2 in PDB entry 4o6y, assembly 1, top view.
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