3JQ9

Crystal structure of pteridine reductase 1 (PTR1) from Trypanosoma brucei in ternary complex with cofactor (NADP+) and inhibitor 2-amino-6-(1,3-benzodioxol-5-yl)-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile (AX1)

Replaces:  3BML

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)	Pteridine reductase 1	polymer	288	30669.8	2	UniProt (Q581W1) Pfam (PF13561)	Trypanosoma brucei
2	C, D (C, D)	Pteridine reductase 1	polymer	288	30685.8	2	UniProt (Q581W1) Pfam (PF13561)	Trypanosoma brucei
3	E, G, I, K (A, B, C, D)	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE	non-polymer		743.4	4	Chemie (NAP)
4	F, H, J, L (A, B, C, D)	2-amino-6-(1,3-benzodioxol-5-yl)-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile	non-polymer		295.3	4	Chemie (AX1)
5	M, N, O, P (A, B, C, D)	water	water		18.0	214	Chemie (HOH)

Sequence modifications

A, B: 1 - 268 (UniProt: Q581W1)

PDB	External Database	Details
Met -19	-	expression tag
Gly -18	-	expression tag
Ser -17	-	expression tag
Ser -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag

C, D: 1 - 268 (UniProt: Q581W1)

PDB	External Database	Details
Met -19	-	expression tag
Gly -18	-	expression tag
Ser -17	-	expression tag
Ser -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	122711.2
Non-Polymers*	Number of molecules	8
	Total formula weight	4154.6
All*	Total formula weight	126865.8

*Water molecules are not included.