2X9G

High resolution structure of TbPTR1 in complex with Pemetrexed

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	PTERIDINE REDUCTASE	polymer	288	30669.8	4	UniProt (O76290) Pfam (PF13561)	TRYPANOSOMA BRUCEI BRUCEI	PTR1
2	E, G, J, L (A, B, C, D)	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE	non-polymer		743.4	4	Chemie (NAP)
3	F, H, K, M (A, B, C, D)	2-{4-[2-(2-AMINO-4-OXO-4,7-DIHYDRO-3H-PYRROLO[2,3-D]PYRIMIDIN-5-YL)-ETHYL]-BENZOYLAMINO}-PENTANEDIOIC ACID	non-polymer		427.4	4	Chemie (LYA)
4	I (B)	ACETATE ION	non-polymer		59.0	1	Chemie (ACT)
5	N, O, P, Q (A, B, C, D)	water	water		18.0	1372	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 268 (UniProt: O76290)

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	122679.2
Non-Polymers*	Number of molecules	9
	Total formula weight	4742.3
All*	Total formula weight	127421.5

*Water molecules are not included.