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3RKO

Crystal structure of the membrane domain of respiratory complex I from E. coli at 3.0 angstrom resolution

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, G
(L, B)
NADH-QUINONE OXIDOREDUCTASE SUBUNIT Lpolymer61366513.62UniProt (C6E9S4)Escherichia coliProton-translocating NADH-quinone oxidoreductase, chain L
2B, H
(M, C)
NADH-QUINONE OXIDOREDUCTASE SUBUNIT Mpolymer50956560.12UniProt (C6E9S5)Escherichia coliProton-translocating NADH-quinone oxidoreductase, chain M
3C, I
(N, D)
NADH-QUINONE OXIDOREDUCTASE SUBUNIT Npolymer48552072.72UniProt (C6E9S6)Escherichia coliNADH dehydrogenase I subunit N 1, NDH-1 subunit N 1
4D, J
(K, G)
NADH-QUINONE OXIDOREDUCTASE SUBUNIT Kpolymer10010853.02UniProt (C6E9S3)
Pfam (PF00420)
UniProt (by SIFTS) (C5W716)
Escherichia coliNADH dehydrogenase I subunit K, NDH-1 subunit K
5E, K
(A, E)
NADH-QUINONE OXIDOREDUCTASE SUBUNIT Apolymer14716474.32UniProt (C6E9R4)Escherichia coli
6F, L
(J, F)
NADH-QUINONE OXIDOREDUCTASE SUBUNIT Jpolymer18419889.62UniProt (C6E9S2)Escherichia coliNADH dehydrogenase subunit J
7AA, BA, CA, DA, EA...
(C, D, L, M, N...)
EICOSANEnon-polymer282.518Chemie (LFA)
8P, Z
(M, C)
7-cyclohexylheptyl 4-O-alpha-D-glucopyranosyl-beta-D-glucopyranosidenon-polymer522.62Chemie (CA7)
9GA, HA, IA, JA, KA...
(L, M, N, K, B...)
waterwater18.016Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains12
Total formula weight444726.4
Non-Polymers*Number of molecules20
Total formula weight6131.1
All*Total formula weight450857.5
*Water molecules are not included.

238582

PDB entries from 2025-07-09

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