7PRR

Structure of the ligand binding domain of the PctD (PA4633) chemoreceptor of Pseudomonas aeruginosa PAO1 in complex with acetylcholine

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Probable chemotaxis transducer	polymer	350	38453.2	2	UniProt (Q9HVF8) In PDB	Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)
2	A, B	TRIETHYLENE GLYCOL	non-polymer		150.2	4	Chemie (PGE)
3	A, B	ACETYLCHOLINE	non-polymer		146.2	2	Chemie (ACH)
4	A	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
5	B	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	1	Chemie (PEG)
6		water	water		18.0	452	Chemie (HOH)

Sequence modifications

A, B: 11 - 340 (UniProt: Q9HVF8)

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

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	76906.5
Non-Polymers*	Number of molecules	8
	Total formula weight	1039.3
All*	Total formula weight	77945.8

*Water molecules are not included.