3VOL

X-ray Crystal Structure of PAS-HAMP Aer2 in the CN-bound Form

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Aerotaxis transducer Aer2	polymer	233	25799.9	1	UniProt (Q9I6V6) Pfam (PF13188) Pfam (PF18947)	Pseudomonas aeruginosa
2	B (A)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	1	Chemie (HEM)
3	C (A)	CYANIDE ION	non-polymer		26.0	1	Chemie (CYN)
4	D (A)	water	water		18.0	11	Chemie (HOH)

Sequence modifications

A: 173 - 384 (UniProt: Q9I6V6)

PDB	External Database	Details
Met 152	-	expression tag
Gly 153	-	expression tag
Ser 154	-	expression tag
Ser 155	-	expression tag
His 156	-	expression tag
His 157	-	expression tag
His 158	-	expression tag
His 159	-	expression tag
His 160	-	expression tag
His 161	-	expression tag
Ser 162	-	expression tag
Ser 163	-	expression tag
Gly 164	-	expression tag
Leu 165	-	expression tag
Val 166	-	expression tag
Pro 167	-	expression tag
Arg 168	-	expression tag
Gly 169	-	expression tag
Ser 170	-	expression tag
His 171	-	expression tag
Met 172	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	25799.9
Non-Polymers*	Number of molecules	2
	Total formula weight	642.5
All*	Total formula weight	26442.4

*Water molecules are not included.