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Chicken cytochrome BC1 complex with ZN++ and an iodinated derivative of kresoxim-methyl bound

X-ray diffraction
3.48Å resolution
PDB entry 3h1k coloured by chain, front view.
PDB entry 3h1k coloured by chain, side view.
PDB entry 3h1k coloured by chain, top view.
Source organism: Gallus gallus
Assembly composition:
hetero icosamer (preferred)
Entry contents: 10 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero icosamer
Accessible surface area: 159458.44 Å2
Buried surface area: 102309.29 Å2
Dissociation area: 53.77 Å2
Dissociation energy (ΔGdiss): 1.69 kcal/mol
Dissociation entropy (TΔSdiss): -2.35 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-112206

Macromolecules

Mitochondrial ubiquinol-cytochrome-c reductase complex core protein i
Chains: A, N
Length: 446 amino acids
Theoretical weight: 49.5 KDa
Source organism: Gallus gallus
UniProt:
  • Canonical: D0VX31 (Residues: 1-446; Coverage: 100%)
Pfam:
InterPro:
CATH: Metalloenzyme, LuxS/M16 peptidase-like
Mitochondrial ubiquinol-cytochrome-c reductase complex core protein i in PDB entry 3h1k, assembly 1, front view.
Mitochondrial ubiquinol-cytochrome-c reductase complex core protein i in PDB entry 3h1k, assembly 1, side view.
Mitochondrial ubiquinol-cytochrome-c reductase complex core protein i in PDB entry 3h1k, assembly 1, top view.
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Mitochondrial ubiquinol-cytochrome-c reductase complex core protein 2
Chains: B, O
Length: 441 amino acids
Theoretical weight: 46.68 KDa
Source organism: Gallus gallus
UniProt:
  • Canonical: D0VX29 (Residues: 1-441; Coverage: 100%)
Pfam:
InterPro:
CATH: Metalloenzyme, LuxS/M16 peptidase-like
Mitochondrial ubiquinol-cytochrome-c reductase complex core protein 2 in PDB entry 3h1k, assembly 1, front view.
Mitochondrial ubiquinol-cytochrome-c reductase complex core protein 2 in PDB entry 3h1k, assembly 1, side view.
Mitochondrial ubiquinol-cytochrome-c reductase complex core protein 2 in PDB entry 3h1k, assembly 1, top view.
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Cytochrome b
Chains: C, P
Length: 380 amino acids
Theoretical weight: 42.62 KDa
Source organism: Gallus gallus
UniProt:
  • Canonical: P18946 (Residues: 1-380; Coverage: 100%)
Gene names: COB, CYTB, MT-CYB, MTCYB
Pfam:
InterPro:
CATH: Cytochrome Bc1 Complex; Chain C
Cytochrome b in PDB entry 3h1k, assembly 1, front view.
Cytochrome b in PDB entry 3h1k, assembly 1, side view.
Cytochrome b in PDB entry 3h1k, assembly 1, top view.
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Cytochrome c domain-containing protein
Chains: D, Q
Length: 241 amino acids
Theoretical weight: 26.97 KDa
Source organism: Gallus gallus
UniProt:
  • Canonical: D0VX26 (Residues: 1-241; Coverage: 100%)
Pfam: Cytochrome C1 family
InterPro:
CATH:
Cytochrome c1, heme protein, mitochondrial in PDB entry 3h1k, assembly 1, front view.
Cytochrome c1, heme protein, mitochondrial in PDB entry 3h1k, assembly 1, side view.
Cytochrome c1, heme protein, mitochondrial in PDB entry 3h1k, assembly 1, top view.
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Cytochrome b-c1 complex subunit Rieske, mitochondrial
Chains: E, R
Length: 196 amino acids
Theoretical weight: 21.51 KDa
Source organism: Gallus gallus
UniProt:
  • Canonical: Q5ZLR5 (Residues: 77-272; Coverage: 72%)
Gene names: RCJMB04_5b19, UQCRFS1
Pfam:
InterPro:
CATH:
Cytochrome b-c1 complex subunit Rieske, mitochondrial in PDB entry 3h1k, assembly 1, front view.
Cytochrome b-c1 complex subunit Rieske, mitochondrial in PDB entry 3h1k, assembly 1, side view.
Cytochrome b-c1 complex subunit Rieske, mitochondrial in PDB entry 3h1k, assembly 1, top view.
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Cytochrome b-c1 complex subunit 7
Chains: F, S
Length: 110 amino acids
Theoretical weight: 13.39 KDa
Source organism: Gallus gallus
UniProt:
  • Canonical: D0VX30 (Residues: 1-110; Coverage: 100%)
Pfam: Ubiquinol-cytochrome C reductase complex 14kD subunit
InterPro:
CATH: Cytochrome b-c1 complex subunit 7
Cytochrome b-c1 complex subunit 7 in PDB entry 3h1k, assembly 1, front view.
Cytochrome b-c1 complex subunit 7 in PDB entry 3h1k, assembly 1, side view.
Cytochrome b-c1 complex subunit 7 in PDB entry 3h1k, assembly 1, top view.
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Cytochrome b-c1 complex subunit 8
Chains: G, T
Length: 81 amino acids
Theoretical weight: 9.5 KDa
Source organism: Gallus gallus
UniProt:
  • Canonical: D0VX32 (Residues: 1-81; Coverage: 100%)
Pfam: UcrQ family
InterPro:
CATH: Cytochrome b-c1 complex subunit 8
Cytochrome b-c1 complex subunit 8 in PDB entry 3h1k, assembly 1, front view.
Cytochrome b-c1 complex subunit 8 in PDB entry 3h1k, assembly 1, side view.
Cytochrome b-c1 complex subunit 8 in PDB entry 3h1k, assembly 1, top view.
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Cytochrome b-c1 complex subunit 6
Chains: H, U
Length: 77 amino acids
Theoretical weight: 9.06 KDa
Source organism: Gallus gallus
UniProt:
  • Canonical: D0VX28 (Residues: 1-77; Coverage: 100%)
Pfam: Ubiquinol-cytochrome C reductase hinge protein
InterPro:
CATH: Ubiquinol-cytochrome C reductase hinge domain
Cytochrome b-c1 complex subunit 6 in PDB entry 3h1k, assembly 1, front view.
Cytochrome b-c1 complex subunit 6 in PDB entry 3h1k, assembly 1, side view.
Cytochrome b-c1 complex subunit 6 in PDB entry 3h1k, assembly 1, top view.
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Cytochrome b-c1 complex subunit 9
Chains: I, V
Length: 47 amino acids
Theoretical weight: 4.79 KDa
Source organism: Gallus gallus
UniProt:
  • Canonical: Q5ZLR5 (Residues: 45-76; Coverage: 12%)
Gene names: RCJMB04_5b19, UQCRFS1
Pfam: Ubiquinol-cytochrome c reductase 8 kDa, N-terminal
InterPro:
CATH: Cytochrome Bc1 Complex; Chain I
Cytochrome b-c1 complex subunit 9 in PDB entry 3h1k, assembly 1, front view.
Cytochrome b-c1 complex subunit 9 in PDB entry 3h1k, assembly 1, side view.
Cytochrome b-c1 complex subunit 9 in PDB entry 3h1k, assembly 1, top view.
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Complex III subunit 9
Chains: J, W
Length: 61 amino acids
Theoretical weight: 7.01 KDa
Source organism: Gallus gallus
UniProt:
  • Canonical: D0VX27 (Residues: 1-61; Coverage: 100%)
Pfam: Ubiquinol-cytochrome C reductase, UQCRX/QCR9 like
InterPro:
CATH: Cytochrome b-c1 complex subunit 9
Complex III subunit 9 in PDB entry 3h1k, assembly 1, front view.
Complex III subunit 9 in PDB entry 3h1k, assembly 1, side view.
Complex III subunit 9 in PDB entry 3h1k, assembly 1, top view.
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