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 (A, B)	TRAP dicarboxylate transporter DctP subunit	polymer	333	37364.9	2	UniProt (Q2IWM2) Pfam (PF03480)	Rhodopseudomonas palustris
2	C (A)	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
3	D, F (A, B)	(2S)-2-hydroxy-2-methyl-3-oxobutanoic acid	non-polymer		132.1	2	Chemie (X2X)
4	E (A)	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
5	G, H (A, B)	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.