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Entry version 58 (26 Feb 2020)
Sequence version 2 (10 Apr 2019)
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Protein

DNA-directed RNA polymerase subunit

Gene

POLR3A

Organism
Equus caballus (Horse)
Status
Unreviewed-Annotation score:

Annotation score:2 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

DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.UniRule annotation

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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>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 functionNucleotidyltransferaseUniRule annotation, Transferase
Biological processTranscription

<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:
DNA-directed RNA polymerase subunitUniRule annotation (EC:2.7.7.6UniRule 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
Name:POLR3AImported
<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>OrganismiEquus caballus (Horse)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 identifieri9796 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaPerissodactylaEquidaeEquus
<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
  • UP000002281 <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 1

Organism-specific databases

Vertebrate Gene Nomenclature Database

More...
VGNCi
VGNC:21684 POLR3A

<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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

DNA-directed RNA polymeraseUniRule annotation

<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

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
F7DXS0

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSECAG00000019416 Expressed in liver and 2 other tissues

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
F7DXS0 baseline

<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

Belongs to the RNA polymerase beta' chain family.UniRule annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0260 Eukaryota
COG0086 LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00930000151028

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_000487_3_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
F7DXS0

Database of Orthologous Groups

More...
OrthoDBi
591636at2759

TreeFam database of animal gene trees

More...
TreeFami
TF103054

Family and domain databases

Conserved Domains Database

More...
CDDi
cd02736 RNAP_III_Rpc1_C, 1 hit
cd02583 RNAP_III_RPC1_N, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.132.30, 1 hit
1.10.274.100, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000722 RNA_pol_asu
IPR006592 RNA_pol_N
IPR007080 RNA_pol_Rpb1_1
IPR007066 RNA_pol_Rpb1_3
IPR042102 RNA_pol_Rpb1_3_sf
IPR007083 RNA_pol_Rpb1_4
IPR007081 RNA_pol_Rpb1_5
IPR035698 RNAP_III_Rpc1_C
IPR035697 RNAP_III_RPC1_N
IPR038120 Rpb1_funnel_sf

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF04997 RNA_pol_Rpb1_1, 1 hit
PF00623 RNA_pol_Rpb1_2, 1 hit
PF04983 RNA_pol_Rpb1_3, 1 hit
PF05000 RNA_pol_Rpb1_4, 1 hit
PF04998 RNA_pol_Rpb1_5, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00663 RPOLA_N, 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>Sequence (1+)i

<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.

This entry has 1 described isoform and 2 potential isoforms that are computationally mapped.Show allAlign All

F7DXS0-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MVKEQFRETD VAKKISHICF GMKSPEEMRQ QAHIQVVSKN LYSQDNNHAP
60 70 80 90 100
LLYGVLDHRM GTSEKDRPCE TCGKNLADCL GHYGYIDLEL PCFHVGYFRA
110 120 130 140 150
VIGILQMICK TCCHIMLSQE EKKQFLDYLK RPGLTYLQKR GLKKKISDKC
160 170 180 190 200
RKKNICQHCG AFNGTVKKCG LLKIIHEKYK TNKKVVDPIV SNFLQSFETA
210 220 230 240 250
IEHNKEVEPL LGRAQENLNP LVVLNLFKRI PAEDVPLLLM NPEAGKPSDL
260 270 280 290 300
ILTRLLVPPL CIRPSVVSDL KSGTNEDDLT MKLTEIIFLN DVIKKHRISG
310 320 330 340 350
AKTQMIMEDW DFLQLQCALY INSELSGIPL NMAPKKWTRG FVQRLKGKQG
360 370 380 390 400
RFRGNLSGKR VDFSGRTVIS PDPNLRIDEV AVPVHVAKIL TFPEKVNKAN
410 420 430 440 450
INFLRKLVQN GPEVHPGANF IQQRHTQMKR FLKYGNREKM AQELKFGDIV
460 470 480 490 500
ERHLIDGDVV LFNRQPSLHK LSIMAHLARV KPHRTFRFNE CVCTPYNADF
510 520 530 540 550
DGDEMNLHLP QTEEAKAEAL VLMGTKANLV TPRNGEPLIA AIQDFLTGAY
560 570 580 590 600
LLTLKDTFFD RAKACQIIAS ILVGKDEKIK VRLPPPTILK PVTLWTGKQI
610 620 630 640 650
FSVVLRPSDD SPVRANLRTK GKQYCGRGED LCANDSYVTI QNSELMSGSM
660 670 680 690 700
DKGTLGSGSK NNIFYILLRD WGQNEAADAM SRLARLAPVY LSNRGFSIGI
710 720 730 740 750
GDVTPGQGLL KAKYELLNAG YKKCDEYIEA LNTGKLQQQP GCTAEETLEA
760 770 780 790 800
LILKELSVIR DHAGSACLRE LDKSNSPLTM ALCGSKGSFI NISQMIACVG
810 820 830 840 850
QQAISGSRVP DGFENRSLPH FEKHSKLPAA KGFVANSFYS GLTPTEFFFH
860 870 880 890 900
TMAGREGLVD TAVKTAETGY MQRRLVKSLE DLCSQYDLTV RSSTGDIIQF
910 920 930 940 950
IYGGDGLDPA AMEGKDEPLE FKRVLDNIKA VFPCRSEPAL SKNELILTTE
960 970 980 990 1000
SIMKKNEFLC CQDSFLQEIK KFIKGVSEKI KKTRDKYGIN DNGTTEPRVL
1010 1020 1030 1040 1050
YQLDRITPTQ IEKFLETCRD KYMRAQMEPG SAVGALCAQS IGEPGTQMTL
1060 1070 1080 1090 1100
KTFHFAGVAS MNITLGVPRI KEIINASKAI STPIITAQLD RDDDADYARL
1110 1120 1130 1140 1150
VKGRIEKTLL GEISEYIEEV FLPDDCFILV KLSLERIRLL RLEVNAETVR
1160 1170 1180 1190 1200
YSICTSKLRV KPGDVAVHGE AVVCVTPREN SKSSMYYVLQ FLKEDLPKVV
1210 1220 1230 1240 1250
VQGIPEVSRA VIHIDEQSGK EKYKLLVEGD NLRAVMATHG VKGTRTTSNN
1260 1270 1280 1290 1300
TYEVEKTLGI EAARTTIINE IQYTMVNHGM SIDRRHVMLL SDLMTYKGEV
1310 1320 1330 1340
LGITRFGLAK MKESVLMLAS FEKTADHLFD AAYFGQKDSV CAEL
Length:1,344
Mass (Da):150,591
Last modified:April 10, 2019 - 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:i4C0469A333A43DDE
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There are 2 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
A0A3Q2L1A4A0A3Q2L1A4_HORSE
DNA-directed RNA polymerase subunit
POLR3A
1,284Annotation score:

Annotation score:2 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>
A0A5F5PMN3A0A5F5PMN3_HORSE
DNA-directed RNA polymerase subunit
POLR3A
1,359Annotation score:

Annotation score:1 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>

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSECAT00000021108; ENSECAP00000017371; ENSECAG00000019416

<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

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Proteomic databases

PaxDbiF7DXS0

Genome annotation databases

EnsembliENSECAT00000021108; ENSECAP00000017371; ENSECAG00000019416

Organism-specific databases

VGNCiVGNC:21684 POLR3A

Phylogenomic databases

eggNOGiKOG0260 Eukaryota
COG0086 LUCA
GeneTreeiENSGT00930000151028
HOGENOMiCLU_000487_3_0_1
InParanoidiF7DXS0
OrthoDBi591636at2759
TreeFamiTF103054

Gene expression databases

BgeeiENSECAG00000019416 Expressed in liver and 2 other tissues
ExpressionAtlasiF7DXS0 baseline

Family and domain databases

CDDicd02736 RNAP_III_Rpc1_C, 1 hit
cd02583 RNAP_III_RPC1_N, 1 hit
Gene3Di1.10.132.30, 1 hit
1.10.274.100, 1 hit
InterProiView protein in InterPro
IPR000722 RNA_pol_asu
IPR006592 RNA_pol_N
IPR007080 RNA_pol_Rpb1_1
IPR007066 RNA_pol_Rpb1_3
IPR042102 RNA_pol_Rpb1_3_sf
IPR007083 RNA_pol_Rpb1_4
IPR007081 RNA_pol_Rpb1_5
IPR035698 RNAP_III_Rpc1_C
IPR035697 RNAP_III_RPC1_N
IPR038120 Rpb1_funnel_sf
PfamiView protein in Pfam
PF04997 RNA_pol_Rpb1_1, 1 hit
PF00623 RNA_pol_Rpb1_2, 1 hit
PF04983 RNA_pol_Rpb1_3, 1 hit
PF05000 RNA_pol_Rpb1_4, 1 hit
PF04998 RNA_pol_Rpb1_5, 1 hit
SMARTiView protein in SMART
SM00663 RPOLA_N, 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 nameiF7DXS0_HORSE
<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: F7DXS0
<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: July 27, 2011
Last sequence update: April 10, 2019
Last modified: February 26, 2020
This is version 58 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 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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