3T2W

Crystal structure of shwanavidin (F43A) - 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	Avidin/streptavidin	polymer	122	12960.3	1	UniProt (Q12QS6) Pfam (PF01382) In PDB	Shewanella denitrificans
2	A	BIOTIN	non-polymer		244.3	1	Chemie (BTN)
3		water	water		18.0	109	Chemie (HOH)

Sequence modifications

A: 3 - 122 (UniProt: Q12QS6)

PDB	External Database	Details
Met 1	-	EXPRESSION TAG
Ala 2	-	EXPRESSION TAG
Ala 43	Phe 83	ENGINEERED MUTATION

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	12960.3
Non-Polymers*	Number of molecules	1
	Total formula weight	244.3
All*	Total formula weight	13204.6

*Water molecules are not included.