4OAN

Crystal structure of a TRAP periplasmic solute binding protein from rhodopseudomonas palustris HaA2 (RPB_2686), TARGET EFI-510221, with density modeled as (S)-2-hydroxy-2-methyl-3-oxobutanoate ((S)-2-Acetolactate)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	TRAP dicarboxylate transporter DctP subunit	polymer	333	37364.9	2	UniProt (Q2IWM2) Pfam (PF03480) In PDB	Rhodopseudomonas palustris
2	A	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
3	A, B	(2S)-2-hydroxy-2-methyl-3-oxobutanoic acid	non-polymer		132.1	2	Chemie (X2X)
4	A	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
5		water	water		18.0	914	Chemie (HOH)

Sequence modifications

A, B: 30 - 339 (UniProt: Q2IWM2)

PDB	External Database	Details
Mse 7	-	EXPRESSION TAG
His 8	-	EXPRESSION TAG
His 9	-	EXPRESSION TAG
His 10	-	EXPRESSION TAG
His 11	-	EXPRESSION TAG
His 12	-	EXPRESSION TAG
His 13	-	EXPRESSION TAG
Ser 14	-	EXPRESSION TAG
Ser 15	-	EXPRESSION TAG
Gly 16	-	EXPRESSION TAG
Val 17	-	EXPRESSION TAG
Asp 18	-	EXPRESSION TAG
Leu 19	-	EXPRESSION TAG
Gly 20	-	EXPRESSION TAG
Thr 21	-	EXPRESSION TAG
Glu 22	-	EXPRESSION TAG
Asn 23	-	EXPRESSION TAG
Leu 24	-	EXPRESSION TAG
Tyr 25	-	EXPRESSION TAG
Phe 26	-	EXPRESSION TAG
Gln 27	-	EXPRESSION TAG
Ser 28	-	EXPRESSION TAG
Mse 29	-	EXPRESSION TAG

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	74729.7
Non-Polymers*	Number of molecules	4
	Total formula weight	391.8
All*	Total formula weight	75121.5

*Water molecules are not included.