5B5G

Crystal structure of ALiS4-Streptavidin 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, C, D (A, B, C, D)	Streptavidin	polymer	120	12693.8	4	UniProt (P22629) Pfam (PF01382)	Streptomyces avidinii
2	E, F, G, H, I... (A, B, C, D)	SULFITE ION	non-polymer		80.1	7	Chemie (SO3)
3	K, M (C, D)	methyl 5-(4-oxidanylidene-5~{H}-furo[3,2-c]pyridin-2-yl)pyridine-3-carboxylate	non-polymer		270.2	2	Chemie (6FX)
4	N, O, P, Q (A, B, C, D)	water	water		18.0	339	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	50775.0
Non-Polymers*	Number of molecules	9
	Total formula weight	1100.9
All*	Total formula weight	51875.9

*Water molecules are not included.