4EXL

Crystal structure of phosphate ABC transporter, periplasmic phosphate-binding protein PstS 1 (PBP1) from Streptococcus pneumoniae Canada MDR_19A

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, D (A, B, C, D)	Phosphate-binding protein pstS 1	polymer	265	28190.3	4	UniProt (Q97Q31) Pfam (PF12849) UniProt (by SIFTS) (Q8DPB1)	Streptococcus pneumoniae	PBP 1
2	E, F, G, J, M... (A, B, C, D)	MAGNESIUM ION	non-polymer		24.3	6	Chemie (MG)
3	H, I, K, L, N... (A, B, C, D)	CHLORIDE ION	non-polymer		35.5	7	Chemie (CL)
4	R, S, T, U (A, B, C, D)	water	water		18.0	1304	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	112761.4
Non-Polymers*	Number of molecules	13
	Total formula weight	394.0
All*	Total formula weight	113155.4

*Water molecules are not included.