1BIA

THE E. COLI BIOTIN HOLOENZYME SYNTHETASE(SLASH)BIO REPRESSOR CRYSTAL STRUCTURE DELINEATES THE BIOTIN AND DNA-BINDING DOMAINS

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	BirA BIFUNCTIONAL PROTEIN	polymer	321	35351.9	1	UniProt (P06709) Pfam (PF08279) Pfam (PF03099) Pfam (PF02237)	Escherichia coli
2	B (A)	water	water		18.0	43	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	35351.9
All*	Total formula weight	35351.9

*Water molecules are not included.