PDBe 2fug

X-ray diffraction
3.3Å resolution

Crystal structure of the hydrophilic domain of respiratory complex I from Thermus thermophilus

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero octamer (preferred)
Entry contents:
8 distinct polypeptide molecules
Macromolecules (8 distinct):
NADH-quinone oxidoreductase subunit 1 Chains: 1, A, J, S
Molecule details ›
Chains: 1, A, J, S
Length: 438 amino acids
Theoretical weight: 48.69 KDa
Source organism: Thermus thermophilus HB8
UniProt:
  • Canonical: Q56222 (Residues: 1-438; Coverage: 100%)
Gene names: TTHA0089, nqo1
Sequence domains:
Structure domains:
NADH-quinone oxidoreductase subunit 2 Chains: 2, B, K, T
Molecule details ›
Chains: 2, B, K, T
Length: 181 amino acids
Theoretical weight: 20.31 KDa
Source organism: Thermus thermophilus HB8
UniProt:
  • Canonical: Q56221 (Residues: 1-181; Coverage: 100%)
Gene names: TTHA0088, nqo2
Sequence domains: Thioredoxin-like [2Fe-2S] ferredoxin
Structure domains:
NADH-quinone oxidoreductase subunit 3 Chains: 3, C, L, U
Molecule details ›
Chains: 3, C, L, U
Length: 783 amino acids
Theoretical weight: 86.66 KDa
Source organism: Thermus thermophilus HB8
UniProt:
  • Canonical: Q56223 (Residues: 1-783; Coverage: 100%)
Gene names: TTHA0090, nqo3
Sequence domains:
NADH-quinone oxidoreductase subunit 4 Chains: 4, D, M, V
Molecule details ›
Chains: 4, D, M, V
Length: 409 amino acids
Theoretical weight: 46.43 KDa
Source organism: Thermus thermophilus HB8
UniProt:
  • Canonical: Q56220 (Residues: 1-409; Coverage: 100%)
Gene names: TTHA0087, nqo4
Sequence domains: Respiratory-chain NADH dehydrogenase, 49 Kd subunit
Structure domains: Cytochrome-c3 Hydrogenase; chain B
NADH-quinone oxidoreductase subunit 5 Chains: 5, E, N, W
Molecule details ›
Chains: 5, E, N, W
Length: 207 amino acids
Theoretical weight: 23.89 KDa
Source organism: Thermus thermophilus HB8
UniProt:
  • Canonical: Q56219 (Residues: 1-207; Coverage: 100%)
Gene names: TTHA0086, nqo5
Sequence domains: Respiratory-chain NADH dehydrogenase, 30 Kd subunit
NADH-quinone oxidoreductase subunit 6 Chains: 6, F, O, X
Molecule details ›
Chains: 6, F, O, X
Length: 181 amino acids
Theoretical weight: 20.26 KDa
Source organism: Thermus thermophilus HB8
UniProt:
  • Canonical: Q56218 (Residues: 1-181; Coverage: 100%)
Gene names: TTHA0085, nqo6
Sequence domains: NADH ubiquinone oxidoreductase, 20 Kd subunit
Structure domains: Rossmann fold
NADH-quinone oxidoreductase subunit 9 Chains: 9, G, P, Y
Molecule details ›
Chains: 9, G, P, Y
Length: 182 amino acids
Theoretical weight: 20.11 KDa
Source organism: Thermus thermophilus HB8
UniProt:
  • Canonical: Q56224 (Residues: 1-182; Coverage: 100%)
Gene names: TTHA0092, nqo9
Sequence domains: 4Fe-4S binding domain
Structure domains: Alpha-Beta Plaits
NADH-quinone oxidoreductase subunit 15 Chains: 7, H, Q, Z
Molecule details ›
Chains: 7, H, Q, Z
Length: 129 amino acids
Theoretical weight: 14.81 KDa
Source organism: Thermus thermophilus HB8
UniProt:
  • Canonical: Q5SKZ7 (Residues: 1-129; Coverage: 100%)
Gene names: TTHA0496, nqo15
Sequence domains: NADH-quinone oxidoreductase chain 15
Structure domains: Metal Transport, Frataxin; Chain A

Ligands and Environments


Cofactor: Ligand FMN 4 x FMN
2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID29
Spacegroup: P21
Unit cell:
a: 135.08Å b: 266.112Å c: 201.731Å
α: 90° β: 104.71° γ: 90°
R-values:
R R work R free
0.265 0.265 0.298