3KYJ

Crystal structure of the P1 domain of CheA3 in complex with CheY6 from R. sphaeroides

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Putative histidine protein kinase	polymer	144	15539.4	1	UniProt (Q8KLS0)	Rhodobacter sphaeroides (Rhodopseudomonas sphaeroides)	CheA3
2	B (B)	CheY6 protein	polymer	145	15720.3	1	UniProt (Q8KLS1)	Rhodobacter sphaeroides (Rhodopseudomonas sphaeroides)
3	C (A)	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
4	D, E (A, B)	water	water		18.0	271	Chemie (HOH)

Sequence modifications

A: 2 - 135 (UniProt: Q8KLS0)

PDB	External Database	Details
Met 0	-	expression tag
Gly 1	-	expression tag
Arg 136	-	expression tag
Ser 137	-	expression tag
His 138	-	expression tag
His 139	-	expression tag
His 140	-	expression tag
His 141	-	expression tag
His 142	-	expression tag
His 143	-	expression tag

B: 2 - 134 (UniProt: Q8KLS1)

PDB	External Database	Details
Met -10	-	expression tag
Arg -9	-	expression tag
Gly -8	-	expression tag
Ser -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
Gly 0	-	expression tag
Ser 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	31259.7
Non-Polymers*	Number of molecules	1
	Total formula weight	23.0
All*	Total formula weight	31282.7

*Water molecules are not included.