2AY0

Structure of the Lys9Met mutant of the E. coli Proline Utilization A (PutA) DNA-binding domain.

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, E...	Bifunctional putA protein	polymer	58	6788.6	6	UniProt (P09546) Pfam (PF21775) In PDB	Escherichia coli
2	A, B, C, D, E...	CHLORIDE ION	non-polymer		35.5	6	Chemie (CL)
3		water	water		18.0	67	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F: 1 - 52 (UniProt: P09546)

PDB	External Database	Details
Met 9	Lys 9	engineered mutation
His 53	-	expression tag
His 54	-	expression tag
His 55	-	expression tag
His 56	-	expression tag
His 57	-	expression tag
His 58	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	40731.9
Non-Polymers*	Number of molecules	6
	Total formula weight	212.7
All*	Total formula weight	40944.6

*Water molecules are not included.