7OYZ

E.coli's putrescine receptor variant PotF/D in complex with spermidine

Replaces:  4JDF

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Putrescine-binding periplasmic protein PotF	polymer	352	39544.7	1	UniProt (P31133) Pfam (PF13416) In PDB	Escherichia coli (strain K12)
2	A	SPERMIDINE	non-polymer		145.2	1	Chemie (SPD)
3	A	1,2-ETHANEDIOL	non-polymer		62.1	1	Chemie (EDO)
4	A	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
5		water	water		18.0	341	Chemie (HOH)

Sequence modifications

A: 27 - 370 (UniProt: P31133)

PDB	External Database	Details
Thr 38	Ser 38	engineered mutation
Glu 39	Asp 39	engineered mutation
Tyr 87	Ser 87	engineered mutation
Asp 182	Ala 182	engineered mutation
Ser 247	Asp 247	engineered mutation
Trp 276	Phe 276	engineered mutation
Gln 348	Leu 348	engineered mutation
Leu 371	-	expression tag
Glu 372	-	expression tag
His 373	-	expression tag
His 374	-	expression tag
His 375	-	expression tag
His 376	-	expression tag
His 377	-	expression tag
His 378	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	39544.7
Non-Polymers*	Number of molecules	3
	Total formula weight	242.8
All*	Total formula weight	39787.5

*Water molecules are not included.