1TWN

Crystal structures of ferrous and ferrous-NO forms of verdoheme in a complex with human heme oxygenase-1: catalytic implications for heme cleavage

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, D (A, B)	IRON-OCTAETHYLPORPHYRIN	non-polymer		547.4	2	Chemie (VER)
3	E, F (A, B)	water	water		18.0	251	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	53797.2
Non-Polymers*	Number of molecules	2
	Total formula weight	1094.8
All*	Total formula weight	54892.0

*Water molecules are not included.