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Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   LEISHMANIA MAJOR PTERIDINE REDUCTASE 1 IN COMPLEX WITH NADP AND TETRAHYDROBIOPTERIN

Authors :   A. W. Schuettelkopf, W. N. Hunter

Date :   10 Dec 04 (Deposition) - 31 Aug 05 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.55

Chains :   Asym./Biol. Unit : A,B,C,D

Keywords :   Pteridine Reductase, Trypanosomatids, Drug Resistance, Pterin Salvage, Short-Chain Dehydrogenase/Reductase, Methotrexate Resistance, Nadp, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   A. W. Schuettelkopf, L. W. Hardy, S. M. Beverley, W. N. Hunter
Structures Of Leishmania Major Pteridine Reductase Complexes Reveal The Active Site Features Important For Ligand Binding And To Guide Inhibitor Design
J. Mol. Biol. V. 352 105 2005
PubMed-ID: 16055151 | Reference-DOI: 10.1016/J.JMB.2005.06.076

Molecule 1 - PTERIDINE REDUCTASE 1
	Chains	:	A, B, C, D
	EC Number	:	1.5.1.33
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET 15B
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Organism Scientific	:	LEISHMANIA MAJOR
	Organism Taxid	:	5664
	Synonym	:	H REGION METHOTREXATE RESISTANCE PROTEIN

		1	2	3	4
Asymmetric/Biological Unit	:	A	B	C	D

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (3, 14)

No.	Name	Count	Type	Full Name
1	EDO	6	Ligand/Ion	1,2-ETHANEDIOL
2	H4B	4	Ligand/Ion	5,6,7,8-TETRAHYDROBIOPTERIN
3	NAP	4	Ligand/Ion	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDEPHOSPHATE

Asymmetric Unit (14, 14)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	ARG A:17 , LEU A:18 , HIS A:36 , TYR A:37 , HIS A:38 , ARG A:39 , SER A:40 , ALA A:64 , ASP A:65 , LEU A:66 , ASN A:109 , ALA A:110 , SER A:111 , SER A:112 , ASP A:142 , MET A:179 , VAL A:180 , ASP A:181 , TYR A:194 , LYS A:198 , PRO A:224 , GLY A:225 , LEU A:226 , SER A:227 , H4B A:1290 , HOH A:2003	BINDING SITE FOR RESIDUE NAP A1289
02	AC2	SOFTWARE	ARG A:17 , SER A:111 , PHE A:113 , TYR A:194 , LEU A:226 , LEU A:229 , NAP A:1289 , HOH A:2044 , HOH D:2025	BINDING SITE FOR RESIDUE H4B A1290
03	AC3	SOFTWARE	ARG B:17 , LEU B:18 , HIS B:36 , TYR B:37 , HIS B:38 , ARG B:39 , SER B:40 , ALA B:64 , ASP B:65 , LEU B:66 , ASN B:109 , ALA B:110 , SER B:111 , SER B:112 , ASP B:142 , MET B:179 , VAL B:180 , ASP B:181 , TYR B:194 , LYS B:198 , PRO B:224 , GLY B:225 , LEU B:226 , SER B:227 , H4B B:1290 , HOH B:2033	BINDING SITE FOR RESIDUE NAP B1289
04	AC4	SOFTWARE	ARG B:17 , SER B:111 , PHE B:113 , ASP B:181 , TYR B:194 , LEU B:226 , LEU B:229 , NAP B:1289 , HOH B:2034 , HOH C:2037	BINDING SITE FOR RESIDUE H4B B1290
05	AC5	SOFTWARE	GLY A:199 , GLU A:202 , ARG A:206 , GLY B:199 , GLU B:202 , ARG B:206 , HOH B:2035	BINDING SITE FOR RESIDUE EDO B1291
06	AC6	SOFTWARE	ASN A:68 , ASN B:68	BINDING SITE FOR RESIDUE EDO B1292
07	AC7	SOFTWARE	THR B:12 , ASN B:108 , ASN B:109 , ALA B:110 , SER B:146 , PRO B:151 , LEU B:154	BINDING SITE FOR RESIDUE EDO B1293
08	AC8	SOFTWARE	ARG C:17 , LEU C:18 , HIS C:36 , TYR C:37 , HIS C:38 , ARG C:39 , SER C:40 , ALA C:64 , ASP C:65 , LEU C:66 , ASN C:109 , ALA C:110 , SER C:111 , SER C:112 , ASP C:142 , MET C:179 , VAL C:180 , TYR C:194 , LYS C:198 , PRO C:224 , GLY C:225 , LEU C:226 , SER C:227 , H4B C:1290 , HOH C:2003 , HOH C:2040 , HOH C:2041	BINDING SITE FOR RESIDUE NAP C1289
09	AC9	SOFTWARE	ARG C:17 , SER C:111 , PHE C:113 , LEU C:188 , TYR C:194 , LEU C:226 , LEU C:229 , NAP C:1289 , HOH C:2042	BINDING SITE FOR RESIDUE H4B C1290
10	BC1	SOFTWARE	LYS A:270 , ARG C:250	BINDING SITE FOR RESIDUE EDO C1291
11	BC2	SOFTWARE	ARG D:17 , LEU D:18 , TYR D:37 , HIS D:38 , ARG D:39 , SER D:40 , ALA D:64 , ASP D:65 , LEU D:66 , ASN D:109 , ALA D:110 , SER D:111 , SER D:112 , ASP D:142 , VAL D:180 , ASP D:181 , TYR D:194 , LYS D:198 , PRO D:224 , GLY D:225 , LEU D:226 , SER D:227 , H4B D:1290 , HOH D:2026 , HOH D:2027 , HOH D:2028	BINDING SITE FOR RESIDUE NAP D1289
12	BC3	SOFTWARE	HOH A:2043 , ARG D:17 , SER D:111 , PHE D:113 , ASP D:181 , TYR D:194 , LEU D:226 , LEU D:229 , NAP D:1289	BINDING SITE FOR RESIDUE H4B D1290
13	BC4	SOFTWARE	GLY C:199 , GLU C:202 , ARG C:206 , GLY D:199 , GLU D:202 , ARG D:206 , HOH D:2030	BINDING SITE FOR RESIDUE EDO D1291
14	BC5	SOFTWARE	ASN C:68 , ASN D:68 , ALA D:141 , HOH D:2031	BINDING SITE FOR RESIDUE EDO D1292

(no "SS Bond" information available for 2BFP)

(no "Cis Peptide Bond" information available for 2BFP)

(no "SAP(SNP)/Variant" information available for 2BFP)

Asymmetric/Biological Unit (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ADH_SHORT	PS00061	Short-chain dehydrogenases/reductases family signature.	PTR1_LEIMA	181-209	4	A:181-209 B:181-209 C:181-209 D:181-209

(no "Exon" information available for 2BFP)

Asymmetric/Biological Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:267
 aligned with PTR1_LEIMA | Q01782 from UniProtKB/Swiss-Prot  Length:288

    Alignment length:283
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285   
           PTR1_LEIMA     6 VPVALVTGAAKRLGRSIAEGLHAEGYAVCLHYHRSAAEANALSATLNARRPNSAITVQADLSNVATAPVSGADGSAPVTLFTRCAELVAACYTHWGRCDVLVNNASSFYPTPLLRNDEDGHEPCVGDREAMETATADLFGSNAIAPYFLIKAFAHRFAGTPAKHRGTNYSIINMVDAMTNQPLLGYTIYTMAKGALEGLTRSAALELAPLQIRVNGVGPGLSVLVDDMPPAVWEGHRSKVPLYQRDSSAAEVSDVVIFLCSSKAKYITGTCVKVDGGYSLTRA 288
               SCOP domains d2bfpa_ A: Dihydropteridin reductase (pteridine reductase)                                                                                                                                                                                                                                  SCOP domains
               CATH domains 2bfpA00 A:6-288 NAD(P)-binding Rossmann-like Domain                                                                                                                                                                                                                                         CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeee....hhhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhhhhh...eeeee..........-------...hhhhhhhhhhhhhhhhhh...eeee.............---------hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhh...eeeeee...........hhhhhhhhhhhhhhhhhhhhhhh...eeeeeeee.........hhhhhhhhhh.........hhhhhhhhhhhhhhhhhh.....eeee..hhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ADH_SHORT  PDB: A:181-209    ------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2bfp A   6 VPVALVTGAAKRLGRSIAEGLHAEGYAVCLHYHRSAAEANALSATLNARRPNSAITVQADLSNVATAP-------APVTLFTRCAELVAACYTHWGRCDVLVNNASSFYPTPLLRN---------GDREAMETATADLFGSNAIAPYFLIKAFAHRVAGTPAKHRGTNYSIINMVDAMTNQPLLGYTIYTMAKGALEGLTRSAALELAPLQIRVNGVGPGLSVLVDDMPPAVWEGHRSKVPLYQRDSSAAEVSDVVIFLCSSKAKYITGTCVKVDGGYSLTRA 288
                                    15        25        35        45        55        65       | -     |  85        95       105       115     |   -     | 135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285   
                                                                                              73      81                                     121       131

Chain B from PDB  Type:PROTEIN  Length:266
 aligned with PTR1_LEIMA | Q01782 from UniProtKB/Swiss-Prot  Length:288

    Alignment length:284
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284    
           PTR1_LEIMA     5 TVPVALVTGAAKRLGRSIAEGLHAEGYAVCLHYHRSAAEANALSATLNARRPNSAITVQADLSNVATAPVSGADGSAPVTLFTRCAELVAACYTHWGRCDVLVNNASSFYPTPLLRNDEDGHEPCVGDREAMETATADLFGSNAIAPYFLIKAFAHRFAGTPAKHRGTNYSIINMVDAMTNQPLLGYTIYTMAKGALEGLTRSAALELAPLQIRVNGVGPGLSVLVDDMPPAVWEGHRSKVPLYQRDSSAAEVSDVVIFLCSSKAKYITGTCVKVDGGYSLTRA 288
               SCOP domains d2bfpb_ B: Dihydropteridin reductase (pteridine reductase)                                                                                                                                                                                                                                   SCOP domains
               CATH domains 2bfpB00 B:5-288 NAD(P)-binding Rossmann-like Domain                                                                                                                                                                                                                                          CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee....hhhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhhhhh...eeeee..........-------...hhhhhhhhhhhhhhhhhh...eeee...........-----------.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhh...eeeeee...........hhhhhhhhhhhhhhhhhhhhhhh...eeeeeeee.........hhhhhhhhhhh........hhhhhhhhhhhhhhhhhh.....eeee..hhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ADH_SHORT  PDB: B:181-209    ------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2bfp B   5 TVPVALVTGAAKRLGRSIAEGLHAEGYAVCLHYHRSAAEANALSATLNARRPNSAITVQADLSNVATAP-------APVTLFTRCAELVAACYTHWGRCDVLVNNASSFYPTPLL-----------GDREAMETATADLFGSNAIAPYFLIKAFAHRVAGTPAKHRGTNYSIINMVDAMTNQPLLGYTIYTMAKGALEGLTRSAALELAPLQIRVNGVGPGLSVLVDDMPPAVWEGHRSKVPLYQRDSSAAEVSDVVIFLCSSKAKYITGTCVKVDGGYSLTRA 288
                                    14        24        34        44        54        64        |-      | 84        94       104       114    |    -      |134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284    
                                                                                               73      81                                   119         131

Chain C from PDB  Type:PROTEIN  Length:256
 aligned with PTR1_LEIMA | Q01782 from UniProtKB/Swiss-Prot  Length:288

    Alignment length:284
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284    
           PTR1_LEIMA     5 TVPVALVTGAAKRLGRSIAEGLHAEGYAVCLHYHRSAAEANALSATLNARRPNSAITVQADLSNVATAPVSGADGSAPVTLFTRCAELVAACYTHWGRCDVLVNNASSFYPTPLLRNDEDGHEPCVGDREAMETATADLFGSNAIAPYFLIKAFAHRFAGTPAKHRGTNYSIINMVDAMTNQPLLGYTIYTMAKGALEGLTRSAALELAPLQIRVNGVGPGLSVLVDDMPPAVWEGHRSKVPLYQRDSSAAEVSDVVIFLCSSKAKYITGTCVKVDGGYSLTRA 288
               SCOP domains d2bfpc_ C: Dihydropteridin reductase (pteridine reductase)                                                                                                                                                                                                                                   SCOP domains
               CATH domains 2bfpC00 C:5-288 NAD(P)-binding Rossmann-like Domain                                                                                                                                                                                                                                          CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee....hhhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhhhhh...eeeee..........-------...hhhhhhhhhhhhhhhhhh...eeee............------------.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhh...eeeeee...........hhhhhhhhhhhhhhhhhhhhhhh...eeeeeeee......---------.hhhhh.......hhhhhhhhhhhhhhhhhh.....eeee..hhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ADH_SHORT  PDB: C:181-209    ------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2bfp C   5 TVPVALVTGAAKRLGRSIAEGLHAEGYAVCLHYHRSAAEANALSATLNARRPNSAITVQADLSNVATAP-------APVTLFTRCAELVAACYTHWGRCDVLVNNASSFYPTPLLR------------REAMETATADLFGSNAIAPYFLIKAFAHRVAGTPAKHRGTNYSIINMVDAMTNQPLLGYTIYTMAKGALEGLTRSAALELAPLQIRVNGVGPGLSVLV---------GHRSKVPLYQRDSSAAEVSDVVIFLCSSKAKYITGTCVKVDGGYSLTRA 288
                                    14        24        34        44        54        64        |-      | 84        94       104       114     |   -       134       144       154       164       174       184       194       204       214       224     |   -     | 244       254       264       274       284    
                                                                                               73      81                                    120          133                                                                                              230       240

Chain D from PDB  Type:PROTEIN  Length:257
 aligned with PTR1_LEIMA | Q01782 from UniProtKB/Swiss-Prot  Length:288

    Alignment length:284
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284    
           PTR1_LEIMA     5 TVPVALVTGAAKRLGRSIAEGLHAEGYAVCLHYHRSAAEANALSATLNARRPNSAITVQADLSNVATAPVSGADGSAPVTLFTRCAELVAACYTHWGRCDVLVNNASSFYPTPLLRNDEDGHEPCVGDREAMETATADLFGSNAIAPYFLIKAFAHRFAGTPAKHRGTNYSIINMVDAMTNQPLLGYTIYTMAKGALEGLTRSAALELAPLQIRVNGVGPGLSVLVDDMPPAVWEGHRSKVPLYQRDSSAAEVSDVVIFLCSSKAKYITGTCVKVDGGYSLTRA 288
               SCOP domains d2bfpd_ D: Dihydropteridin reductase (pteridine reductase)                                                                                                                                                                                                                                   SCOP domains
               CATH domains 2bfpD00 D:5-288 NAD(P)-binding Rossmann-like Domain                                                                                                                                                                                                                                          CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee....hhhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhhhhh...eeeee...........------...hhhhhhhhhhhhhhhhhh...eeee............------------hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeeeee...........hhhhhhhhhhhhhhhhhhhhhhh...eeeeeeee......---------hhhhhh.......hhhhhhhhhhhhhhhhhh.....eeee..hhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ADH_SHORT  PDB: D:181-209    ------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2bfp D   5 TVPVALVTGAAKRLGRSIAEGLHAEGYAVCLHYHRSAAEANALSATLNARRPNSAITVQADLSNVATAPV------APVTLFTRCAELVAACYTHWGRCDVLVNNASSFYPTPLLR------------REAMETATADLFGSNAIAPYFLIKAFAHRVAGTPAKHRGTNYSIINMVDAMTNQPLLGYTIYTMAKGALEGLTRSAALELAPLQIRVNGVGPGLSVLV---------GHRSKVPLYQRDSSAAEVSDVVIFLCSSKAKYITGTCVKVDGGYSLTRA 288
                                    14        24        34        44        54        64        74      | 84        94       104       114     |   -       134       144       154       164       174       184       194       204       214       224     |   -     | 244       254       264       274       284    
                                                                                                74     81                                    120          133                                                                                              230       240

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Asymmetric/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Alpha and beta proteins (a/b) (23833)

Fold: NAD(P)-binding Rossmann-fold domains (1604)

Superfamily: NAD(P)-binding Rossmann-fold domains (1604)

Family: Tyrosine-dependent oxidoreductases (503)

Protein domain: Dihydropteridin reductase (pteridine reductase) (24)

Leishmania major [TaxId: 5664] (10)

1a	d2bfpa_	A:
1b	d2bfpb_	B:
1c	d2bfpc_	C:
1d	d2bfpd_	D:

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 3-Layer(aba) Sandwich (12045)

Topology: Rossmann fold (7312)

Homologous Superfamily: NAD(P)-binding Rossmann-like Domain (1244)

Leishmania major. Organism_taxid: 5664. (5)

1a	2bfpC00	C:5-288
1b	2bfpB00	B:5-288
1c	2bfpA00	A:6-288
1d	2bfpD00	D:5-288

(no "Pfam Domain" information available for 2BFP)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B,C,D (PTR1_LEIMA | Q01782)

molecular function
	GO:0016491	oxidoreductase activity	Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
	GO:0047040	pteridine reductase activity	Catalysis of the reaction: 5,6,7,8-tetrahydrobiopterin + 2 NADP(+) = biopterin + 2 H(+) + 2 NADPH.
	GO:0004799	thymidylate synthase activity	Catalysis of the reaction: 5,10-methylenetetrahydrofolate + dUMP = 7,8-dihydrofolate + thymidylate.
biological process
	GO:0034599	cellular response to oxidative stress	Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
	GO:0032259	methylation	The process in which a methyl group is covalently attached to a molecule.
	GO:0055114	oxidation-reduction process	A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
	GO:0019889	pteridine metabolic process	The chemical reactions and pathways involving pteridine, pyrazino(2,3-dipyrimidine), the parent structure of pterins and the pteroyl group.
	GO:0031427	response to methotrexate	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a methotrexate stimulus. Methotrexate is 4-amino-10-methylformic acid, a folic acid analogue that is a potent competitive inhibitor of dihydrofolate reductase.
	GO:0006729	tetrahydrobiopterin biosynthetic process	The chemical reactions and pathways resulting in the formation of tetrahydrobiopterin, the reduced form of biopterin (2-amino-4-hydroxy-6-(1,2-dihydroxypropyl)-pteridine). It functions as a hydroxylation coenzyme, e.g. in the conversion of phenylalanine to tyrosine.

Asymmetric/Biological Unit
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	Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 2bfp)

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Access by PDB/NDB ID
	2bfp
		Family and Domain Information	:	ProDom \| SYSTERS
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		Orientation in Membranes	:	OPM
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		Secondary Structure	:	DSSP (structure derived) \| HSSP (homology derived)
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Access by UniProt ID/Accession number
	PTR1_LEIMA \| Q01782
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	1.5.1.33
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		Domain Information	:	XDom
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Access by UniProt ID/Accession number
	PTR1_LEIMA \| Q01782
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UniProtKB/Swiss-Prot
	PTR1_LEIMA \| Q01782	:	1e7w 1e92 1w0c 2bf7 2bfa 2bfm 2bfo 2qhx 3h4v 5l42 5l4n

1e7w	ONE ACTIVE SITE, TWO MODES OF REDUCTION CORRELATE THE MECHANISM OF LEISHMANIA PTERIDINE REDUCTASE WITH PTERIN METABOLISM AND ANTIFOLATE DRUG RESISTANCE IN TRPANOSOMES
1e92	PTERIDINE REDUCTASE 1 FROM LEISHMANIA MAJOR COMPLEXED WITH NADP+ AND DIHYDROBIOPTERIN
1w0c	INHIBITION OF LEISHMANIA MAJOR PTERIDINE REDUCTASE (PTR1) BY 2,4,6- TRIAMINOQUINAZOLINE; STRUCTURE OF THE NADP TERNARY COMPLEX.
2bf7	LEISHMANIA MAJOR PTERIDINE REDUCTASE 1 IN COMPLEX WITH NADP AND BIOPTERIN
2bfa	LEISHMANIA MAJOR PTERIDINE REDUCTASE 1 IN COMPLEX WITH NADP AND CB3717
2bfm	LEISHMANIA MAJOR PTERIDINE REDUCTASE 1 IN COMPLEX WITH NADP AND TRIMETHOPRIM
2bfo	LEISHMANIA MAJOR PTERIDINE REDUCTASE 1 IN COMPLEX WITH NADPH

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (3, 14)

Sites (14, 14)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 4)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (1, 4)

CATH Domains (1, 4)

Pfam Domains (0, 0)

Gene Ontology (9, 9)

Visualization

Interactive Views

Still Images

Databases and Analysis Tools

Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File