1SWH

CORE-STREPTAVIDIN MUTANT W79F AT PH 4.5

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)	CORE-STREPTAVIDIN	polymer	127	13242.3	4	UniProt (P22629) Pfam (PF01382)	Streptomyces avidinii
2	E, F, G, H (A, B, C, D)	water	water		18.0	199	Chemie (HOH)

Sequence modifications

A, B, C, D: 13 - 139 (UniProt: P22629)

PDB	External Database	Details
Phe 79	Trp 103	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	52969.2
All*	Total formula weight	52969.2

*Water molecules are not included.