6UBP

Crystal structure of a photochemical intermediate of human indoleamine 2,3-dioxygenase 1 in complex with carbon monoxide and tryptophan

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	47791.9	2	UniProt (P14902) Pfam (PF01231)	Homo sapiens (Human)	IDO-1,Indoleamine-pyrrole 2,3-dioxygenase
2	C, F (A, B)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	2	Chemie (HEM)
3	D, G (A, B)	TRYPTOPHAN	non-polymer		204.2	2	Chemie (TRP)
4	E, H (A, B)	CARBON MONOXIDE	non-polymer		28.0	2	Chemie (CMO)
5	I, J (A, B)	water	water		18.0	63	Chemie (HOH)

Sequence modifications

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

PDB	External Database	Details
Met 11	-	initiating methionine
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	95583.8
Non-Polymers*	Number of molecules	6
	Total formula weight	1697.4
All*	Total formula weight	97281.3

*Water molecules are not included.