Structure analysis

Inward-facing, closed proteoliposome complex I at 2.7 A. Initially purified in LMNG.

Electron Microscopy
2.7Å resolution
Source organism: Bos taurus
Assembly composition:
hetero 45-mer (preferred)
Entry contents: 44 distinct polypeptide molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero 45-mer
PDBe Complex ID: PDB-CPX-245042

Macromolecules

Chain: A
Length: 115 amino acids
Theoretical weight: 13.09 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P03898 (Residues: 1-115; Coverage: 100%)
Gene names: MT-ND3, MTND3, NADH3, ND3
Pfam: NADH-ubiquinone/plastoquinone oxidoreductase, chain 3

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Chain: B
Length: 216 amino acids
Theoretical weight: 23.8 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P42026 (Residues: 1-216; Coverage: 100%)
Gene name: NDUFS7
Pfam: NADH ubiquinone oxidoreductase, 20 Kd subunit

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Chain: C
Length: 266 amino acids
Theoretical weight: 30.32 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P23709 (Residues: 1-266; Coverage: 100%)
Gene name: NDUFS3
Pfam: Respiratory-chain NADH dehydrogenase, 30 Kd subunit

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Chain: D
Length: 463 amino acids
Theoretical weight: 52.68 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P17694 (Residues: 1-463; Coverage: 100%)
Gene name: NDUFS2
Pfam: Respiratory-chain NADH dehydrogenase, 49 Kd subunit

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Chain: E
Length: 249 amino acids
Theoretical weight: 27.34 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P04394 (Residues: 1-249; Coverage: 100%)
Gene name: NDUFV2
Pfam: Thioredoxin-like [2Fe-2S] ferredoxin

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Chain: F
Length: 464 amino acids
Theoretical weight: 50.72 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P25708 (Residues: 1-464; Coverage: 100%)
Gene names: NDUFV1, UQOR1
Pfam:

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Chain: H
Length: 318 amino acids
Theoretical weight: 35.72 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P03887 (Residues: 1-318; Coverage: 100%)
Gene names: MT-ND1, MTND1, NADH1, ND1
Pfam: NADH dehydrogenase

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Chain: I
Length: 212 amino acids
Theoretical weight: 23.93 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P42028 (Residues: 1-212; Coverage: 100%)
Gene name: NDUFS8
Pfam: 4Fe-4S dicluster domain

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Chain: J
Length: 175 amino acids
Theoretical weight: 19.11 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P03924 (Residues: 1-175; Coverage: 100%)
Gene names: MT-ND6, MTND6, NADH6, ND6
Pfam: NADH-ubiquinone/plastoquinone oxidoreductase chain 6

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Chain: K
Length: 98 amino acids
Theoretical weight: 10.83 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P03902 (Residues: 1-98; Coverage: 100%)
Gene names: MT-ND4L, MTND4L, NADH4L, ND4L
Pfam: NADH-ubiquinone/plastoquinone oxidoreductase chain 4L

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Chain: L
Length: 606 amino acids
Theoretical weight: 68.36 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P03920 (Residues: 1-606; Coverage: 100%)
Gene names: MT-ND5, MTND5, NADH5, ND5
Pfam:

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Chain: M
Length: 459 amino acids
Theoretical weight: 52.16 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P03910 (Residues: 1-459; Coverage: 100%)
Gene names: MT-ND4, MTND4, NADH4, ND4
Pfam:

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Chain: N
Length: 347 amino acids
Theoretical weight: 39.3 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P03892 (Residues: 1-347; Coverage: 100%)
Gene names: MT-ND2, MTND2, NADH2, ND2
Pfam:

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Chain: O
Length: 343 amino acids
Theoretical weight: 39.33 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P34942 (Residues: 1-343; Coverage: 100%)
Gene name: NDUFA10
Pfam: Deoxynucleoside kinase

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Chain: P
Length: 380 amino acids
Theoretical weight: 42.91 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P34943 (Residues: 1-380; Coverage: 100%)
Gene name: NDUFA9
Pfam: NAD dependent epimerase/dehydratase family

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Chain: Q
Length: 175 amino acids
Theoretical weight: 19.84 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02375 (Residues: 1-175; Coverage: 100%)
Gene name: NDUFS4
Pfam: NADH dehydrogenase ubiquinone Fe-S protein 4

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Chain: R
Length: 124 amino acids
Theoretical weight: 13.43 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P23934 (Residues: 1-124; Coverage: 100%)
Gene name: NDUFS6
Pfam: Zinc-finger domain

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Chain: S
Length: 99 amino acids
Theoretical weight: 11.1 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02370 (Residues: 1-99; Coverage: 100%)
Gene name: NDUFA2
Pfam: Mitochondrial ribosomal protein L51 / S25 / CI-B8 domain

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Chains: T, U
Length: 156 amino acids
Theoretical weight: 17.42 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P52505 (Residues: 1-156; Coverage: 100%)
Gene name: NDUFAB1
Pfam: Phosphopantetheine attachment site

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Chain: V
Length: 116 amino acids
Theoretical weight: 13.33 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P23935 (Residues: 1-116; Coverage: 100%)
Gene name: NDUFA5
Pfam: ETC complex I subunit conserved region

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Chain: W
Length: 128 amino acids
Theoretical weight: 15.08 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02366 (Residues: 1-128; Coverage: 100%)
Gene name: NDUFA6
Pfam: Complex1_LYR-like

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Chain: X
Length: 172 amino acids
Theoretical weight: 20.12 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P42029 (Residues: 1-172; Coverage: 100%)
Gene name: NDUFA8
Pfam: CHCH domain

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Chain: Y
Length: 141 amino acids
Theoretical weight: 14.81 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q8HXG6 (Residues: 1-141; Coverage: 100%)
Gene name: NDUFA11
Pfam: Tim17/Tim22/Tim23/Pmp24 family

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Chain: Z
Length: 144 amino acids
Theoretical weight: 16.69 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q95KV7 (Residues: 1-144; Coverage: 100%)
Gene names: GRIM19, NDUFA13
Pfam: GRIM-19 protein

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Chain: a
Length: 70 amino acids
Theoretical weight: 8.12 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02377 (Residues: 1-70; Coverage: 100%)
Gene name: NDUFA1
Pfam: NADH-ubiquinone oxidoreductase MWFE subunit

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Chain: b
Length: 84 amino acids
Theoretical weight: 9.4 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02371 (Residues: 1-84; Coverage: 100%)
Gene name: NDUFA3
Pfam: NADH dehydrogenase 1 alpha subcomplex subunit 3

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Chain: c
Length: 76 amino acids
Theoretical weight: 8.8 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02376 (Residues: 1-76; Coverage: 100%)
Gene name: NDUFC1
Pfam: NADH dehydrogenase [ubiquinone] 1 subunit C1, mitochondrial

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Chain: d
Length: 120 amino acids
Theoretical weight: 14.16 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02827 (Residues: 1-120; Coverage: 100%)
Gene name: NDUFC2
Pfam: NADH-ubiquinone oxidoreductase subunit b14.5b (NDUFC2)

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Chain: e
Length: 106 amino acids
Theoretical weight: 12.69 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02379 (Residues: 1-106; Coverage: 100%)
Gene name: NDUFS5
Pfam: NADH:ubiquinone oxidoreductase, NDUFS5-15kDa

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Chain: f
Length: 57 amino acids
Theoretical weight: 6.98 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02378 (Residues: 1-57; Coverage: 100%)
Gene name: NDUFB1
Pfam: MNLL subunit

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Chain: g
Length: 154 amino acids
Theoretical weight: 17.59 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q8HXG5 (Residues: 1-154; Coverage: 100%)
Gene name: NDUFB11
Pfam: ESSS subunit of NADH:ubiquinone oxidoreductase (complex I)

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Chain: h
Length: 189 amino acids
Theoretical weight: 21.62 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02380 (Residues: 1-189; Coverage: 100%)
Gene name: NDUFB5
Pfam: NADH:ubiquinone oxidoreductase, NDUFB5/SGDH subunit

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Chain: i
Length: 128 amino acids
Theoretical weight: 15.59 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02367 (Residues: 1-128; Coverage: 100%)
Gene name: NDUFB6
Pfam: NADH:ubiquinone oxidoreductase, NDUFB6/B17 subunit

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Chain: j
Length: 108 amino acids
Theoretical weight: 12.3 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02374 (Residues: 1-108; Coverage: 100%)
Gene name: NDUFB2
Pfam: NADH dehydrogenase 1 beta subcomplex subunit 2

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Chain: k
Length: 98 amino acids
Theoretical weight: 11.16 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02365 (Residues: 1-98; Coverage: 100%)
Gene name: NDUFB3
Pfam: NADH-ubiquinone oxidoreductase B12 subunit family

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Chain: l
Length: 186 amino acids
Theoretical weight: 21.68 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02372 (Residues: 1-186; Coverage: 100%)
Gene name: NDUFB8
Pfam: NADH-ubiquinone oxidoreductase ASHI subunit (CI-ASHI or NDUFB8)

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Chain: m
Length: 129 amino acids
Theoretical weight: 15.25 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P48305 (Residues: 1-129; Coverage: 100%)
Gene name: NDUFB4
Pfam: NADH-ubiquinone oxidoreductase B15 subunit (NDUFB4)

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Chain: n
Length: 179 amino acids
Theoretical weight: 21.83 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02369 (Residues: 1-179; Coverage: 100%)
Gene names: NDUFB9, UQOR22
Pfam: Complex 1 protein (LYR family)

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Chain: o
Length: 137 amino acids
Theoretical weight: 16.43 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02368 (Residues: 1-137; Coverage: 100%)
Gene name: NDUFB7
Pfam: NADH-ubiquinone oxidoreductase B18 subunit (NDUFB7)

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Chain: p
Length: 176 amino acids
Theoretical weight: 21 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q02373 (Residues: 1-176; Coverage: 100%)
Gene name: NDUFB10
Pfam: NADH-ubiquinone oxidoreductase subunit 10

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Chain: q
Length: 145 amino acids
Theoretical weight: 17.16 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: O97725 (Residues: 1-145; Coverage: 100%)
Gene name: NDUFA12
Pfam: NADH ubiquinone oxidoreductase subunit NDUFA12

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Chain: r
Length: 113 amino acids
Theoretical weight: 12.74 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: Q05752 (Residues: 1-113; Coverage: 100%)
Gene names: CI-B14-5A, NDUFA7
Pfam: NADH:ubiquinone oxidoreductase subunit B14.5a (Complex I-B14.5a)

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Chain: s
Length: 109 amino acids
Theoretical weight: 11.87 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P25712 (Residues: 1-109; Coverage: 100%)
Gene name: NDUFV3
Pfam: NADH dehydrogenase [ubiquinone] flavoprotein 3, mitochondrial

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