3W2Z

Crystal structure of the cyanobacterial protein

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Methyl-accepting chemotaxis protein	polymer	198	22782.7	1	UniProt (Q8YXY7)	Nostoc
2	B (A)	PHYCOCYANOBILIN	non-polymer		588.7	1	Chemie (CYC)
3	C (A)	IODIDE ION	non-polymer		126.9	1	Chemie (IOD)
4	D (A)	water	water		18.0	185	Chemie (HOH)

Sequence modifications

A: 22 - 198 (UniProt: Q8YXY7)

PDB	External Database	Details
Met 1	-	expression tag
Gly 2	-	expression tag
Ser 3	-	expression tag
Ser 4	-	expression tag
His 5	-	expression tag
His 6	-	expression tag
His 7	-	expression tag
His 8	-	expression tag
His 9	-	expression tag
His 10	-	expression tag
Ser 11	-	expression tag
Ser 12	-	expression tag
Gly 13	-	expression tag
Leu 14	-	expression tag
Val 15	-	expression tag
Pro 16	-	expression tag
Arg 17	-	expression tag
Gly 18	-	expression tag
Ser 19	-	expression tag
His 20	-	expression tag
Met 21	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	22782.7
Non-Polymers*	Number of molecules	2
	Total formula weight	715.6
All*	Total formula weight	23498.3

*Water molecules are not included.