1BRR

X-RAY STRUCTURE OF THE BACTERIORHODOPSIN TRIMER/LIPID COMPLEX

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C (A, B, C)	PROTEIN (BACTERIORHODOPSIN)	polymer	247	26740.3	3	UniProt (P02945) Pfam (PF01036)	Halobacterium salinarum	BR
2	D, E (D, E)	3-O-sulfo-beta-D-galactopyranose-(1-6)-alpha-D-mannopyranose-(1-2)-alpha-D-glucopyranose	branched		584.5	2	In PDB GlyTouCan (G37414ZM)
3	F, L, S (A, B, C)	RETINAL	non-polymer		284.4	3	Chemie (RET) PubChem (23254473) PubChem (177675058) PubChem (5280490) PubChem (5381765) PubChem (1070) PubChem (87082476) PubChem (87110449) PubChem (87110609) PubChem (88398773) PubChem (88407543) PubChem (638015) PubChem (5353924) PubChem (6436079) PubChem (6436082) PubChem (134688327) PubChem (11426127) PubChem (12227253) PubChem (12227254) PubChem (12227256) PubChem (12227257) PubChem (12227258) PubChem (12227259) PubChem (12227269) PubChem (12227270) PubChem (12227271) PubChem (140510408) PubChem (145826762) PubChem (169423542) PubChem (172878320)
4	G, H, I, M, N... (A, B, C)	3,7,11,15-TETRAMETHYL-HEXADECAN-1-OL	non-polymer		298.5	10	Chemie (ARC) PubChem (42626758) PubChem (59079087) PubChem (88710738) PubChem (102459) PubChem (444637) PubChem (92278094) PubChem (92278154) PubChem (92278167) PubChem (468704) PubChem (102245611) PubChem (11109323)
5	J, R, W (A, B, C)	GLYCEROL	non-polymer		92.1	3	Chemie (GOL) PubChem (753)
6	K (B)	beta-D-glucopyranose	non-polymer		180.2	1	Chemie (BGC)
7	Q (B)	N-OCTANE	non-polymer		114.2	1	Chemie (OCT) PubChem (356)

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	80221.0
Branched	Number of molecules	2
	Total formula weight	1169.0
Non-Polymers*	Number of molecules	18
	Total formula weight	4409.4
All*	Total formula weight	85799.4

*Water molecules are not included.