1OR4

Crystal Structure of HemAT sensor domain from B.subtilis in the cyano-liganded form

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)	Heme-based aerotactic transducer hemAT	polymer	178	20841.1	2	UniProt (O07621) Pfam (PF11563)	Bacillus subtilis
2	C, E (A, B)	CYANIDE ION	non-polymer		26.0	2	Chemie (CYN)
3	D, F (A, B)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	2	Chemie (HEM)
4	G, H (A, B)	water	water		18.0	204	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	41682.2
Non-Polymers*	Number of molecules	4
	Total formula weight	1285.0
All*	Total formula weight	42967.2

*Water molecules are not included.