6F9K

Tryptophan Repressor TrpR from E.coli with 5-methyl-L-tryptophan as ligand

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Trp operon repressor	polymer	116	13441.3	1	UniProt (P0A881) Pfam (PF01371) In PDB	Escherichia coli (strain K12)
2	A	5-methyl-L-tryptophan	non-polymer		218.3	4	Chemie (D0Q)
3	A	SULFATE ION	non-polymer		96.1	4	Chemie (SO4)
4		water	water		18.0	66	Chemie (HOH)

Sequence modifications

A: 1 - 107 (UniProt: P0A881)

PDB	External Database	Details
Asp 108	-	expression tag
Leu 109	-	expression tag
Glu 110	-	expression tag
His 111	-	expression tag
His 112	-	expression tag
His 113	-	expression tag
His 114	-	expression tag
His 115	-	expression tag
His 116	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	13441.3
Non-Polymers*	Number of molecules	8
	Total formula weight	1257.3
All*	Total formula weight	14698.5

*Water molecules are not included.