6KI1

The transmembrane domain of a cyanobacterium bicarbonate transporter BicA

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)	Low affinity sulfate transporter	polymer	392	40426.1	2	UniProt (Q55415) Pfam (PF00916)	Synechocystis sp. PCC 6803	BicA
2	C, F (A, B)	BICARBONATE ION	non-polymer		61.0	2	Chemie (BCT)
3	D, G (A, B)	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
4	E, H (A, B)	(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate	non-polymer		356.5	2	Chemie (OLC)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	80852.2
Non-Polymers*	Number of molecules	6
	Total formula weight	881.1
All*	Total formula weight	81733.3

*Water molecules are not included.