4Z28

Crystal structure of short hoefavidin biotin complex

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)	Avidin family	polymer	134	14341.5	2	UniProt (A9D857) Pfam (PF01382)	Hoeflea phototrophica DFL-43	short-hoefavidin
2	C, E (A, B)	BIOTIN	non-polymer		244.3	2	Chemie (BTN)
3	D, F (A, B)	2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL	non-polymer		209.2	2	Chemie (BTB)
4	G, H (A, B)	water	water		18.0	78	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	28683.0
Non-Polymers*	Number of molecules	4
	Total formula weight	907.1
All*	Total formula weight	29590.1

*Water molecules are not included.