9ETV

Holo IDO with a bound inhibitor

This is a non-PDB format compatible entry.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Tryptophan 2,3-dioxygenase	polymer	365	43304.7	1	UniProt (P20351) Pfam (PF03301)	Drosophila melanogaster (fruit fly)	TDO,Protein vermilion,Tryptamin 2,3-dioxygenase,Tryptophan oxygenase,TO,TRPO,Tryptophan pyrrolase,Tryptophanase
2	B (A)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	1	Chemie (HEM)
3	C (A)	6-methylimidazo[1,5-a]pyridine	non-polymer		132.2	1	Chemie (A1H61)
4	D (A)	water	water		18.0	1	Chemie (HOH)

Sequence modifications

A: 24 - 379 (UniProt: P20351)

PDB	External Database	Details
Met 23	-	initiating methionine
Leu 380	-	expression tag
Glu 381	-	expression tag
His 382	-	expression tag
His 383	-	expression tag
His 384	-	expression tag
His 385	-	expression tag
His 386	-	expression tag
His 387	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	43304.7
Non-Polymers*	Number of molecules	2
	Total formula weight	748.6
All*	Total formula weight	44053.3

*Water molecules are not included.