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Entry version 121 (26 Feb 2020)
Sequence version 1 (01 Mar 2003)
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Protein

Bifunctional dihydrofolate reductase-thymidylate synthase

Gene

PF3D7_0417200

Organism
Plasmodium falciparum (isolate 3D7)
Status
Unreviewed-Annotation score:

Annotation score:3 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>
-Protein inferred from homologyi <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

Bifunctional enzyme. Involved in de novo dTMP biosynthesis. Key enzyme in folate metabolism.UniRule annotation

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi: tetrahydrofolate biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes 5,6,7,8-tetrahydrofolate from 7,8-dihydrofolate.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Bifunctional dihydrofolate reductase-thymidylate synthase (PF3D7_0417200)
This subpathway is part of the pathway tetrahydrofolate 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 5,6,7,8-tetrahydrofolate from 7,8-dihydrofolate, the pathway tetrahydrofolate biosynthesis and in Cofactor biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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 sitei490UniRule annotation1

<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 functionMethyltransferaseUniRule annotationImported, OxidoreductaseUniRule annotationImported, Transferase
Biological processNucleotide biosynthesisUniRule annotation, One-carbon metabolismUniRule annotation

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
PLASMO:PFD0830W-MONOMER

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-PFA-499943 Interconversion of nucleotide di- and triphosphates

SABIO-RK: Biochemical Reaction Kinetics Database

More...
SABIO-RKi
Q8I1R6

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

More...
UniPathwayi
UPA00077;UER00158

<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%5Fand%5Ftaxonomy%5Fsection">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:
Bifunctional dihydrofolate reductase-thymidylate synthaseUniRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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
ORF Names:PF3D7_0417200Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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>OrganismiPlasmodium falciparum (isolate 3D7)Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 identifieri36329 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 lineageiEukaryotaAlveolataApicomplexaAconoidasidaHaemosporidaPlasmodiidaePlasmodiumPlasmodium (Laverania)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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
  • UP000001450 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">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 4

Organism-specific databases

Eukaryotic Pathogen Database Resources

More...
EuPathDBi
PlasmoDB:PF3D7_0417200

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

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
Q8I1R6

<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

3D structure databases

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

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SMRi
Q8I1R6

Database of comparative protein structure models

More...
ModBasei
Search...

<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

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini10 – 228DHFRInterPro annotationAdd BLAST219

<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

In the C-terminal section; belongs to the thymidylate synthase family.UniRule annotation
In the N-terminal section; belongs to the dihydrofolate reductase family.UniRule annotation

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_021669_3_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q8I1R6

KEGG Orthology (KO)

More...
KOi
K13998

Identification of Orthologs from Complete Genome Data

More...
OMAi
HHKIEMK

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q8I1R6

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00209 DHFR, 1 hit
cd00351 TS_Pyrimidine_HMase, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.30.572.10, 1 hit
3.40.430.10, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_00008 Thymidy_synth_bact, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR024072 DHFR-like_dom_sf
IPR012262 DHFR-TS
IPR017925 DHFR_CS
IPR001796 DHFR_dom
IPR023451 Thymidate_synth/dCMP_Mease
IPR036926 Thymidate_synth/dCMP_Mease_sf
IPR000398 Thymidylate_synthase
IPR020940 Thymidylate_synthase_AS

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00186 DHFR_1, 1 hit
PF00303 Thymidylat_synt, 1 hit

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF000389 DHFR-TS, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00108 THYMDSNTHASE

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF53597 SSF53597, 1 hit
SSF55831 SSF55831, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR03284 thym_sym, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00075 DHFR_1, 1 hit
PS51330 DHFR_2, 1 hit
PS00091 THYMIDYLATE_SYNTHASE, 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%5Flength">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%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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.

Q8I1R6-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MMEQVCDVFD IYAICACCKV ESKNEGKKNE VFNNYTFRGL GNKGVLPWKC
60 70 80 90 100
NSLDMKYFCA VTTYVNESKY EKLKYKRCKY LNKETVDNVN DMPNSKKLQN
110 120 130 140 150
VVVMGRTSWE SIPKKFKPLS NRINVILSRT LKKEDFDEDV YIINKVEDLI
160 170 180 190 200
VLLGKLNYYK CFIIGGSVVY QEFLEKKLIK KIYFTRINST YECDVFFPEI
210 220 230 240 250
NENEYQIISV SDVYTSNNTT LDFIIYKKTN NKMLNEQNCI KGEEKNNDMP
260 270 280 290 300
LKNDDKDTCH MKKLTEFYKN VDKYKINYEN DDDDEEEDDF VYFNFNKEKE
310 320 330 340 350
EKNKNSIHPN DFQIYNSLKY KYHPEYQYLN IIYDIMMNGN KQSDRTGVGV
360 370 380 390 400
LSKFGYIMKF DLSQYFPLLT TKKLFLRGII EELLWFIRGE TNGNTLLNKN
410 420 430 440 450
VRIWEANGTR EFLDNRKLFH REVNDLGPIY GFQWRHFGAE YTNMYDNYEN
460 470 480 490 500
KGVDQLKNII NLIKNDPTSR RILLCAWNVK DLDQMALPPC HILCQFYVFD
510 520 530 540 550
GKLSCIMYQR SCDLGLGVPF NIASYSIFTH MIAQVCNLQP AQFIHVLGNA
560 570 580 590 600
HVYNNHIDSL KIQLNRIPYP FPTLKLNPDI KNIEDFTISD FTIQNYVHHE

KISMDMAA
Length:608
Mass (Da):71,737
Last modified:March 1, 2003 - v1
<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:i26FD4BB4A5F1F4A7
GO

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
AL844503 Genomic DNA Translation: CAD49208.1

NCBI Reference Sequences

More...
RefSeqi
XP_001351479.1, XM_001351443.1

Genome annotation databases

Ensembl protists genome annotation project

More...
EnsemblProtistsi
CAD49208; CAD49208; PF3D7_0417200

GeneDB pathogen genome database from Sanger Institute

More...
GeneDBi
PF3D7_0417200.1:pep

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
9221804

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
pfa:PF3D7_0417200

<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
AL844503 Genomic DNA Translation: CAD49208.1
RefSeqiXP_001351479.1, XM_001351443.1

3D structure databases

SMRiQ8I1R6
ModBaseiSearch...

Proteomic databases

PRIDEiQ8I1R6

Genome annotation databases

EnsemblProtistsiCAD49208; CAD49208; PF3D7_0417200
GeneDBiPF3D7_0417200.1:pep
GeneIDi9221804
KEGGipfa:PF3D7_0417200

Organism-specific databases

EuPathDBiPlasmoDB:PF3D7_0417200

Phylogenomic databases

HOGENOMiCLU_021669_3_0_1
InParanoidiQ8I1R6
KOiK13998
OMAiHHKIEMK
PhylomeDBiQ8I1R6

Enzyme and pathway databases

UniPathwayiUPA00077;UER00158
BioCyciPLASMO:PFD0830W-MONOMER
ReactomeiR-PFA-499943 Interconversion of nucleotide di- and triphosphates
SABIO-RKiQ8I1R6

Family and domain databases

CDDicd00209 DHFR, 1 hit
cd00351 TS_Pyrimidine_HMase, 1 hit
Gene3Di3.30.572.10, 1 hit
3.40.430.10, 1 hit
HAMAPiMF_00008 Thymidy_synth_bact, 1 hit
InterProiView protein in InterPro
IPR024072 DHFR-like_dom_sf
IPR012262 DHFR-TS
IPR017925 DHFR_CS
IPR001796 DHFR_dom
IPR023451 Thymidate_synth/dCMP_Mease
IPR036926 Thymidate_synth/dCMP_Mease_sf
IPR000398 Thymidylate_synthase
IPR020940 Thymidylate_synthase_AS
PfamiView protein in Pfam
PF00186 DHFR_1, 1 hit
PF00303 Thymidylat_synt, 1 hit
PIRSFiPIRSF000389 DHFR-TS, 1 hit
PRINTSiPR00108 THYMDSNTHASE
SUPFAMiSSF53597 SSF53597, 1 hit
SSF55831 SSF55831, 1 hit
TIGRFAMsiTIGR03284 thym_sym, 1 hit
PROSITEiView protein in PROSITE
PS00075 DHFR_1, 1 hit
PS51330 DHFR_2, 1 hit
PS00091 THYMIDYLATE_SYNTHASE, 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 nameiQ8I1R6_PLAF7
<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: Q8I1R6
<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%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/TrEMBL: March 1, 2003
Last sequence update: March 1, 2003
Last modified: February 26, 2020
This is version 121 of the entry and version 1 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 statusiUnreviewed (UniProtKB/TrEMBL)

<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

Reference proteomeImported
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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