7TAK

Structure of a NAT 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	Putative membrane protein PurT	polymer	471	51785.0	2	UniProt (Q47WB4) Pfam (PF00860) In PDB	Colwellia psychrerythraea
2	A, B	GUANINE	non-polymer		151.1	2	Chemie (GUN)
3		water	water		18.0	17	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	103570.1
Non-Polymers*	Number of molecules	2
	Total formula weight	302.3
All*	Total formula weight	103872.3

*Water molecules are not included.