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Entry version 135 (11 Dec 2019)
Sequence version 2 (27 May 2002)
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Protein

Pteridine reductase 1

Gene

PTR1

Organism
Leishmania major
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Exhibits a NADPH-dependent biopterin reductase activity. Has good activity with folate and significant activity with dihydrofolate and dihydrobiopterin, but not with quinonoid dihydrobiopterin. Confers resistance to methotrexate (MTX).1 Publication

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi: tetrahydrobiopterin biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes tetrahydrobiopterin from biopterin.1 Publication
Proteins known to be involved in this subpathway in this organism are:
  1. Pteridine reductase 1 (PTR1)
This subpathway is part of the pathway tetrahydrobiopterin biosynthesis, which is itself part of Cofactor biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes tetrahydrobiopterin from biopterin, the pathway tetrahydrobiopterin biosynthesis and in Cofactor biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei175Substrate1 Publication1
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei194Proton acceptor1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi17 – 40NADPBy similarityAdd BLAST24

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionOxidoreductase
Biological processMethotrexate resistance
LigandNADP

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
1.5.1.33 2950

SABIO-RK: Biochemical Reaction Kinetics Database

More...
SABIO-RKi
Q01782

UniPathway: a resource for the exploration and annotation of metabolic pathways

More...
UniPathwayi
UPA00849;UER00822

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Pteridine reductase 1 (EC:1.5.1.33)
Alternative name(s):
H region methotrexate resistance protein
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:PTR1
Synonyms:HMTXR
ORF Names:L1063.01, LmjF23.0270, LmjF_23_0270
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiLeishmania major
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri5664 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaEuglenozoaKinetoplastidaTrypanosomatidaeLeishmaniinaeLeishmania
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000000542 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 23

Organism-specific databases

Eukaryotic Pathogen Database Resources

More...
EuPathDBi
TriTrypDB:LmjF.23.0270

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

GO - Cellular componenti

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Chemistry databases

ChEMBL database of bioactive drug-like small molecules

More...
ChEMBLi
CHEMBL6194

Drug and drug target database

More...
DrugBanki
DB03461 2'-Monophosphoadenosine 5'-Diphosphoribose
DB02532 2,4,6-Triaminoquinazoline
DB04400 L-erythro-7,8-dihydrobiopterin
DB02338 Nadph Dihydro-Nicotinamide-Adenine-Dinucleotidephosphate

DrugCentral

More...
DrugCentrali
Q01782

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000547531 – 288Pteridine reductase 1Add BLAST288

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homotetramer.

2 Publications

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
5664.LmjF.23.0270

Chemistry databases

BindingDB database of measured binding affinities

More...
BindingDBi
Q01782

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1288
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
Q01782

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
Q01782

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

<p>This subsection of the ‘Family and domains’ section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0725 Eukaryota
COG1028 LUCA

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q01782

KEGG Orthology (KO)

More...
KOi
K03793

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR036291 NAD(P)-bd_dom_sf
IPR014058 Pteridine_reductase
IPR020904 Sc_DH/Rdtase_CS
IPR002347 SDR_fam

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00081 GDHRDH
PR00080 SDRFAMILY

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF51735 SSF51735, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR02685 pter_reduc_Leis, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00061 ADH_SHORT, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

Q01782-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MTAPTVPVAL VTGAAKRLGR SIAEGLHAEG YAVCLHYHRS AAEANALSAT
60 70 80 90 100
LNARRPNSAI TVQADLSNVA TAPVSGADGS APVTLFTRCA ELVAACYTHW
110 120 130 140 150
GRCDVLVNNA SSFYPTPLLR NDEDGHEPCV GDREAMETAT ADLFGSNAIA
160 170 180 190 200
PYFLIKAFAH RFAGTPAKHR GTNYSIINMV DAMTNQPLLG YTIYTMAKGA
210 220 230 240 250
LEGLTRSAAL ELAPLQIRVN GVGPGLSVLV DDMPPAVWEG HRSKVPLYQR
260 270 280
DSSAAEVSDV VIFLCSSKAK YITGTCVKVD GGYSLTRA
Length:288
Mass (Da):30,457
Last modified:May 27, 2002 - v2
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iB8F6FC23018367E0
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti162F → V in CAJ03998 (PubMed:16020728).Curated1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
L01699 Genomic DNA Translation: AAA29249.2
FR796419 Genomic DNA Translation: CAJ03998.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A45168

NCBI Reference Sequences

More...
RefSeqi
XP_001683351.1, XM_001683299.1

Genome annotation databases

Ensembl protists genome annotation project

More...
EnsemblProtistsi
CAJ03998; CAJ03998; LMJF_23_0270

GeneDB pathogen genome database from Sanger Institute

More...
GeneDBi
LmjF.23.0270:pep

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
5651987

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
lma:LMJF_23_0270

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L01699 Genomic DNA Translation: AAA29249.2
FR796419 Genomic DNA Translation: CAJ03998.1
PIRiA45168
RefSeqiXP_001683351.1, XM_001683299.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1E7WX-ray1.75A/B1-288[»]
1E92X-ray2.20A/B/C/D1-288[»]
1W0CX-ray2.60A/B/C/D/E/F/G/H1-288[»]
2BF7X-ray2.40A/B/C/D1-288[»]
2BFAX-ray2.70A/B/C/D1-288[»]
2BFMX-ray2.60A/B/C/D1-288[»]
2BFOX-ray2.60A/B/C/D1-288[»]
2BFPX-ray2.55A/B/C/D1-288[»]
2QHXX-ray2.61A/B/C/D1-288[»]
3H4VX-ray2.40A/B/C/D/E/F/G/H1-288[»]
5L42X-ray2.10A/B/C/D1-288[»]
5L4NX-ray2.35A/B/C/D1-288[»]
SMRiQ01782
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

STRINGi5664.LmjF.23.0270

Chemistry databases

BindingDBiQ01782
ChEMBLiCHEMBL6194
DrugBankiDB03461 2'-Monophosphoadenosine 5'-Diphosphoribose
DB02532 2,4,6-Triaminoquinazoline
DB04400 L-erythro-7,8-dihydrobiopterin
DB02338 Nadph Dihydro-Nicotinamide-Adenine-Dinucleotidephosphate
DrugCentraliQ01782

Genome annotation databases

EnsemblProtistsiCAJ03998; CAJ03998; LMJF_23_0270
GeneDBiLmjF.23.0270:pep
GeneIDi5651987
KEGGilma:LMJF_23_0270

Organism-specific databases

EuPathDBiTriTrypDB:LmjF.23.0270

Phylogenomic databases

eggNOGiKOG0725 Eukaryota
COG1028 LUCA
InParanoidiQ01782
KOiK03793

Enzyme and pathway databases

UniPathwayiUPA00849;UER00822
BRENDAi1.5.1.33 2950
SABIO-RKiQ01782

Miscellaneous databases

EvolutionaryTraceiQ01782

Protein Ontology

More...
PROi
PR:Q01782

Family and domain databases

InterProiView protein in InterPro
IPR036291 NAD(P)-bd_dom_sf
IPR014058 Pteridine_reductase
IPR020904 Sc_DH/Rdtase_CS
IPR002347 SDR_fam
PRINTSiPR00081 GDHRDH
PR00080 SDRFAMILY
SUPFAMiSSF51735 SSF51735, 1 hit
TIGRFAMsiTIGR02685 pter_reduc_Leis, 1 hit
PROSITEiView protein in PROSITE
PS00061 ADH_SHORT, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiPTR1_LEIMA
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q01782
Secondary accession number(s): Q4QBE7, Q9U1F8
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 1, 1994
Last sequence update: May 27, 2002
Last modified: December 11, 2019
This is version 135 of the entry and version 2 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families
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