7T1S

Crystal structure of a bacterial sterol transporter

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	BstC	polymer	258	28288.7	2	UniProt (by SIFTS) (Q60A56)	Methylococcus capsulatus str. Texas = ATCC 19069
2	C, D, E, F, G... (A, B)	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	10	Chemie (PEG)
3	H, I, J, P, Q (A, B)	CITRIC ACID	non-polymer		192.1	5	Chemie (CIT)
4	R, S (A, B)	water	water		18.0	355	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	56577.4
Non-Polymers*	Number of molecules	15
	Total formula weight	2021.8
All*	Total formula weight	58599.2

*Water molecules are not included.