6FAL

Tryptophan Repressor TrpR from E.coli with 3-Indolepropionic acid 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, B	Trp operon repressor	polymer	115	13386.2	2	UniProt (P0A881) Pfam (PF01371) In PDB	Escherichia coli
2	A, B	INDOLYLPROPIONIC ACID	non-polymer		189.2	2	Chemie (IOP)
3		water	water		18.0	224	Chemie (HOH)

Sequence modifications

A, B: 2 - 108 (UniProt: P0A881)

PDB	External Database	Details
Tyr 88	Ser 88	conflict
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	2
	Total formula weight	26772.4
Non-Polymers*	Number of molecules	2
	Total formula weight	378.4
All*	Total formula weight	27150.8

*Water molecules are not included.