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3IAS

Crystal structure of the hydrophilic domain of respiratory complex I from Thermus thermophilus, oxidized, 4 mol/ASU, re-refined to 3.15 angstrom resolution

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, I, Q, Y
(1, A, J, S)
NADH-quinone oxidoreductase subunit 1polymer43848693.74UniProt (Q56222)
Pfam (PF01512)
Pfam (PF22461)
Pfam (PF10531)
Pfam (PF10589)
Thermus thermophilusNADH dehydrogenase I chain 1, NDH-1 subunit 1
2B, J, R, Z
(2, B, K, T)
NADH-quinone oxidoreductase subunit 2polymer18120309.24UniProt (Q56221)
Pfam (PF01257)
Thermus thermophilusNADH dehydrogenase I chain 2, NDH-1 subunit 2
3AA, C, K, S
(3, C, L, U)
NADH-quinone oxidoreductase subunit 3polymer78386656.24UniProt (Q56223)
Pfam (PF00384)
Pfam (PF01568)
Pfam (PF00111)
Pfam (PF10588)
Pfam (PF22117)
Pfam (PF04879)
Thermus thermophilusNADH dehydrogenase I chain 3, NDH-1 subunit 3
4BA, D, L, T
(4, D, M, V)
NADH-quinone oxidoreductase subunit 4polymer40946428.04UniProt (Q56220)
Pfam (PF00346)
Thermus thermophilusNADH dehydrogenase I chain 4, NDH-1 subunit 4
5CA, E, M, U
(5, E, N, W)
NADH-quinone oxidoreductase subunit 5polymer20723893.34UniProt (Q56219)
Pfam (PF00329)
Thermus thermophilusNADH dehydrogenase I chain 5, NDH-1 subunit 5
6DA, F, N, V
(6, F, O, X)
NADH-quinone oxidoreductase subunit 6polymer18120262.64UniProt (Q56218)
Pfam (PF01058)
Thermus thermophilusNADH dehydrogenase I subunit 6, NDH-1 subunit 6
7EA, G, O, W
(9, G, P, Y)
NADH-quinone oxidoreductase subunit 9polymer18220106.34UniProt (Q56224)
Pfam (PF00037)
Thermus thermophilusNADH dehydrogenase I subunit 9, NDH-1 subunit 9
8FA, H, P, X
(7, H, Q, Z)
NADH-quinone oxidoreductase subunit 15polymer12914812.14UniProt (Q5SKZ7)
Pfam (PF11497)
Thermus thermophilusNADH dehydrogenase I chain 15, NDH-1 subunit 15
9AB, AC, BC, CC, DB...
(C, U, F, G, X...)
IRON/SULFUR CLUSTERnon-polymer351.628Chemie (SF4)
10HA, JB, VA, XB
(1, J, A, S)
FLAVIN MONONUCLEOTIDEnon-polymer456.34Chemie (FMN)
11BB, DC, IA, KB, NA...
(C, U, 2, K, 3...)
FE2/S2 (INORGANIC) CLUSTERnon-polymer175.88Chemie (FES)
12CB, EC, GB, HB, IC...
(C, U, G, H, Y...)
CALCIUM IONnon-polymer40.116Chemie (CA)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains32
Total formula weight1124645.2
Non-Polymers*Number of molecules56
Total formula weight13719.1
All*Total formula weight1138364.3
*Water molecules are not included.

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PDB entries from 2025-07-23

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