1KBJ

Crystallographic Study of the Recombinant Flavin-binding Domain of Baker's Yeast Flavocytochrome b2: comparison with the Intact Wild-type Enzyme

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)	CYTOCHROME B2	polymer	412	45691.3	2	UniProt (P00175) Pfam (PF01070)	Saccharomyces cerevisiae (baker's yeast)
2	C, E (A, B)	FLAVIN MONONUCLEOTIDE	non-polymer		456.3	2	Chemie (FMN)
3	D, F (A, B)	1,2-ETHANEDIOL	non-polymer		62.1	2	Chemie (EDO)
4	G, H (A, B)	water	water		18.0	370	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	91382.6
Non-Polymers*	Number of molecules	4
	Total formula weight	1036.8
All*	Total formula weight	92419.4

*Water molecules are not included.