7KBY

Artificial Metalloproteins with Dinuclear Iron Centers

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Streptavidin	polymer	159	16561.9	1	UniProt (P22629) Pfam (PF01382) In PDB	Streptomyces avidinii
2	A	{N-(4-{bis[(pyridin-2-yl-kappaN)methyl]amino-kappaN}butyl)-5-[(3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanamide}iron(3+)	non-polymer		552.5	1	Chemie (KM3)
3	A	CYANIDE ION	non-polymer		26.0	1	Chemie (CYN)
4	A	ACETATE ION	non-polymer		59.0	1	Chemie (ACT)
5		water	water		18.0	70	Chemie (HOH)

Sequence modifications

A: 14 - 159 (UniProt: P22629)

PDB	External Database	Details
Met 1	-	initiating methionine
Ala 2	-	expression tag
Ser 3	-	expression tag
Met 4	-	expression tag
Thr 5	-	expression tag
Gly 6	-	expression tag
Gly 7	-	expression tag
Gln 8	-	expression tag
Gln 9	-	expression tag
Met 10	-	expression tag
Gly 11	-	expression tag
Arg 12	-	expression tag
Asp 13	-	expression tag
Ala 121	Lys 145	engineered mutation
Tyr 124	Leu 148	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	16561.9
Non-Polymers*	Number of molecules	3
	Total formula weight	637.6
All*	Total formula weight	17199.5

*Water molecules are not included.