3RKO

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

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	L, B	NADH-QUINONE OXIDOREDUCTASE SUBUNIT L	polymer	613	66513.6	2	UniProt (C6E9S4) In PDB	Escherichia coli	Proton-translocating NADH-quinone oxidoreductase, chain L
2	M, C	NADH-QUINONE OXIDOREDUCTASE SUBUNIT M	polymer	509	56560.1	2	UniProt (C6E9S5) In PDB	Escherichia coli	Proton-translocating NADH-quinone oxidoreductase, chain M
3	N, D	NADH-QUINONE OXIDOREDUCTASE SUBUNIT N	polymer	485	52072.7	2	UniProt (C6E9S6) In PDB	Escherichia coli	NADH dehydrogenase I subunit N 1, NDH-1 subunit N 1
4	K, G	NADH-QUINONE OXIDOREDUCTASE SUBUNIT K	polymer	100	10853.0	2	UniProt (C6E9S3) Pfam (PF00420) UniProt (by SIFTS) (C5W716) In PDB	Escherichia coli	NADH dehydrogenase I subunit K, NDH-1 subunit K
5	A, E	NADH-QUINONE OXIDOREDUCTASE SUBUNIT A	polymer	147	16474.3	2	UniProt (C6E9R4) In PDB	Escherichia coli
6	J, F	NADH-QUINONE OXIDOREDUCTASE SUBUNIT J	polymer	184	19889.6	2	UniProt (C6E9S2) In PDB	Escherichia coli	NADH dehydrogenase subunit J
7	C, D, L, M, N...	EICOSANE	non-polymer		282.5	18	Chemie (LFA)
8	M, C	7-cyclohexylheptyl 4-O-alpha-D-glucopyranosyl-beta-D-glucopyranoside	non-polymer		522.6	2	Chemie (CA7)
9		water	water		18.0	16	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	12
	Total formula weight	444726.4
Non-Polymers*	Number of molecules	20
	Total formula weight	6131.1
All*	Total formula weight	450857.5

*Water molecules are not included.