1N45

X-RAY CRYSTAL STRUCTURE OF HUMAN HEME OXYGENASE-1 (HO-1) IN COMPLEX WITH ITS SUBSTRATE HEME

Replaces:  1QQ8

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 oxygenase 1	polymer	233	26898.6	2	UniProt (P09601) Pfam (PF01126)	Homo sapiens (human)	HO-1
2	C (A)	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
3	D, E (A, B)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	2	Chemie (HEM)
4	F, G (A, B)	water	water		18.0	425	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	53797.2
Non-Polymers*	Number of molecules	3
	Total formula weight	1329.0
All*	Total formula weight	55126.3

*Water molecules are not included.