› 7jrg

Electron Microscopy
3.2Å resolution

Plant Mitochondrial complex III2 from Vigna radiata

Released:
DOI: 10.2210/pdb7jrg/pdb
PDB entry 7jrg coloured by chain, front view.
PDB entry 7jrg coloured by chain, side view.
PDB entry 7jrg coloured by chain, top view.
Source organism: Vigna radiata var. radiata
Primary publication:
Atomic structures of respiratory complex III2, complex IV, and supercomplex III2-IV from vascular plants.
Maldonado M, Guo F, Letts JA
OpenAccess logo Elife 10 (2021)
PMID: 33463523
Related structures: EMD-22445

Function and Biology Details

Reaction catalysed: 
Quinol + 2 ferricytochrome c(Side 2) = quinone + 2 ferrocytochrome c(Side 2) + 2 H(+)(Side 2)
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
hetero icosamer (preferred)
PDBe Complex ID:
PDB-CPX-103681 (preferred)
Entry contents:
10 distinct polypeptide molecules
Macromolecules (10 distinct):
mitochondrial processing peptidase Chains: A, M
Molecule details ›
Chains: A, M
Length: 527 amino acids
Theoretical weight: 58.71 KDa
Source organism: Vigna radiata var. radiata
UniProt:
  • Canonical: A0A1S3TWG4 (Residues: 1-527; Coverage: 100%)
Gene name: LOC106759431
Sequence domains:
Complex III subunit II Chains: B, N
Molecule details ›
Chains: B, N
Length: 506 amino acids
Theoretical weight: 54.54 KDa
Source organism: Vigna radiata var. radiata
UniProt:
  • Canonical: A0A1S3VF71 (Residues: 1-506; Coverage: 100%)
Gene name: LOC106774328
Sequence domains:
COB Chains: C, O
Cytochrome c domain-containing protein Chains: D, P
Cytochrome b-c1 complex subunit Rieske, mitochondrial Chains: E, Q
Cytochrome b-c1 complex subunit 7 Chains: F, R
Cytochrome b-c1 complex subunit 8 Chains: G, S
Cytochrome b-c1 complex subunit 6 Chains: H, T
Complex III subunit 9 Chains: J, V
QCR10 Chains: K, W

Ligands and Environments

6 bound ligands:
Ligand ZN 2 x ZN
Ligand PC1 3 x PC1
Ligand CDL 9 x CDL
Ligand HEM 4 x HEM
Ligand 3PE 17 x 3PE
Ligand HEC 2 x HEC
No modified residues

Experiments and Validation Details

wwPDB Validation report is not available for this EM entry.
Resolution: 3.2Å
Relevant EMDB volumes: EMD-22445

Quick links

Citations

9 review citations

Structure and Mechanism of Respiratory III-IV Supercomplexes in Bioenergetic Membranes.
Brzezinski et al. (2021)
8 more

7 mentions without citation

Atomic structures of respiratory complex III2, complex IV, and supercomplex III2-IV from vascular plants.
Maldonado et al. (2021)
6 more