3C9H

Crystal structure of the substrate binding protein of the ABC transporter from Agrobacterium tumefaciens

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	ABC transporter, substrate binding protein	polymer	355	39465.1	2	UniProt (Q7CWZ6) Pfam (PF13416) In PDB	Agrobacterium tumefaciens str.
2	A, B	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
3	A, B	CITRIC ACID	non-polymer		192.1	2	Chemie (CIT)
4		water	water		18.0	433	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	78930.1
Non-Polymers*	Number of molecules	4
	Total formula weight	432.9
All*	Total formula weight	79363.0

*Water molecules are not included.