3E4O

Crystal structure of succinate bound state DctB

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)	C4-dicarboxylate transport sensor protein dctB	polymer	305	33352.9	2	UniProt (P13633)	Sinorhizobium meliloti	sensory histidine kinase
2	C, F (A, B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
3	D, E (A)	SUCCINIC ACID	non-polymer		118.1	2	Chemie (SIN)
4	G, H (A, B)	water	water		18.0	199	Chemie (HOH)

Sequence modifications

A, B: 42 - 312 (UniProt: P13633)

PDB	External Database	Details
Met 8	-	expression tag
Gly 9	-	expression tag
Ser 10	-	expression tag
Ser 11	-	expression tag
His 12	-	expression tag
His 13	-	expression tag
His 14	-	expression tag
His 15	-	expression tag
His 16	-	expression tag
His 17	-	expression tag
Ser 18	-	expression tag
Ser 19	-	expression tag
Gly 20	-	expression tag
Leu 21	-	expression tag
Val 22	-	expression tag
Pro 23	-	expression tag
Arg 24	-	expression tag
Gly 25	-	expression tag
Ser 26	-	expression tag
His 27	-	expression tag
Mse 28	-	expression tag
Ala 29	-	expression tag
Ser 30	-	expression tag
Mse 31	-	expression tag
Thr 32	-	expression tag
Gly 33	-	expression tag
Gly 34	-	expression tag
Glu 35	-	expression tag
Glu 36	-	expression tag
Mse 37	-	expression tag
Gly 38	-	expression tag
Arg 39	-	expression tag
Gly 40	-	expression tag
Ser 41	-	expression tag
Lys 174	Asn 174	SEE REMARK 999
Asn 309	Lys 309	SEE REMARK 999

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	66705.8
Non-Polymers*	Number of molecules	4
	Total formula weight	284.8
All*	Total formula weight	66990.5

*Water molecules are not included.