6ITS

The citrate-bound trimer of chemoreceptor MCP2201 ligand binding domain

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)	Methyl-accepting chemotaxis sensory transducer	polymer	165	18138.6	2	UniProt (D0IVL9)	Comamonas testosteroni (strain CNB-2)
2	C, D (A, B)	CITRIC ACID	non-polymer		192.1	2	Chemie (CIT)
3	E, F (A, B)	water	water		18.0	60	Chemie (HOH)

Sequence modifications

A, B: 46 - 203 (UniProt: D0IVL9)

PDB	External Database	Details
Met 39	-	initiating methionine
His 40	-	expression tag
His 41	-	expression tag
His 42	-	expression tag
His 43	-	expression tag
His 44	-	expression tag
His 45	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	36277.1
Non-Polymers*	Number of molecules	2
	Total formula weight	384.2
All*	Total formula weight	36661.4

*Water molecules are not included.