5N8E

CRYSTAL STRUCTURE OF STREPTAVIDIN WITH PEPTIDE RDPAPAWAHGGG

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	183	18849.7	4	UniProt (P22629) Pfam (PF01382)	Streptomyces avidinii
2	E, F, G (E, F, H)	ARG-ASP-PRO-ALA-PRO-ALA-TRP-ALA-HIS-GLY-GLY-GLY-NH2	polymer	13	1191.3	3		synthetic construct
3	H, I (B, D)	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
4	J, K, L, M, N... (A, B, C, D, E...)	water	water		18.0	637	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	7
	Total formula weight	78972.5
Non-Polymers*	Number of molecules	2
	Total formula weight	46.0
All*	Total formula weight	79018.5

*Water molecules are not included.