5WMW

Structural Insights into Substrate and Inhibitor Binding Sites in Human Indoleamine 2,3-Dioxygenase 1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Indoleamine 2,3-dioxygenase 1	polymer	425	47701.8	2	UniProt (P14902) Pfam (PF01231)	Homo sapiens (Human)	IDO-1,Indoleamine-pyrrole 2,3-dioxygenase
2	C, G (A, B)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	2	Chemie (HEM)
3	D, H (A, B)	CYANIDE ION	non-polymer		26.0	2	Chemie (CYN)
4	E, F, I, J (A, B)	TRYPTOPHAN	non-polymer		204.2	4	Chemie (TRP)
5	K, L (A, B)	water	water		18.0	104	Chemie (HOH)

Sequence modifications

A, B: 12 - 403 (UniProt: P14902)

PDB	External Database	Details
Met 11	-	initiating methionine
Gly 270	Phe 270	engineered mutation
Lys 404	-	expression tag
Gly 405	-	expression tag
Glu 406	-	expression tag
Leu 407	-	expression tag
Asn 408	-	expression tag
Ser 409	-	expression tag
Lys 410	-	expression tag
Leu 411	-	expression tag
Glu 412	-	expression tag
Gly 413	-	expression tag
Lys 414	-	expression tag
Pro 415	-	expression tag
Ile 416	-	expression tag
Pro 417	-	expression tag
Asn 418	-	expression tag
Pro 419	-	expression tag
Leu 420	-	expression tag
Leu 421	-	expression tag
Gly 422	-	expression tag
Leu 423	-	expression tag
Asp 424	-	expression tag
Ser 425	-	expression tag
Thr 426	-	expression tag
Arg 427	-	expression tag
Thr 428	-	expression tag
Gly 429	-	expression tag
His 430	-	expression tag
His 431	-	expression tag
His 432	-	expression tag
His 433	-	expression tag
His 434	-	expression tag
His 435	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	95403.6
Non-Polymers*	Number of molecules	8
	Total formula weight	2101.9
All*	Total formula weight	97505.5

*Water molecules are not included.