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UniProtKB - Q39212 (RPD3B_ARATH)

Entry version 167 (02 Dec 2020)
Sequence version 2 (01 Dec 2000)
Previous versions | rss
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Protein

DNA-directed RNA polymerases IV and V subunit 3B

Gene

NRPD3B

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score:

Annotation score:4 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

DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Component of RNA polymerases IV and V which mediate short-interfering RNAs (siRNA) accumulation and subsequent RNA-directed DNA methylation-dependent (RdDM) transcriptional gene silencing (TGS) of endogenous repeated sequences, including transposable elements.1 Publication

<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

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<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

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 polymerases IV and V subunit 3B
Alternative name(s):
DNA-directed RNA polymerase II 36 kDa polypeptide B
DNA-directed RNA polymerase II subunit RPB3-B
Short name:
RNA polymerase II subunit 3-B
Short name:
RNA polymerase II subunit B3-B
<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:NRPD3B
Synonyms:NRPE3B, RPB36B
Ordered Locus Names:At2g15400
ORF Names:F26H6.8
<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>OrganismiArabidopsis thaliana (Mouse-ear cress)
<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 identifieri3702 [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 lineageiEukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliopsida › eudicotyledons › Gunneridae › Pentapetalae › rosids › malvids › Brassicales › Brassicaceae › Camelineae › Arabidopsis
<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
  • UP000006548 <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 2

Organism-specific databases

Arabidopsis Information Portal

More...Araporti		AT2G15400

The Arabidopsis Information Resource

More...TAIRi		locus:2047198, AT2G15400

<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

Keywords - Cellular componenti

DNA-directed RNA polymerase, Nucleus

<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 or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001327461 – 319DNA-directed RNA polymerases IV and V subunit 3BAdd BLAST319

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei1N-acetylmethionineBy similarity1

Keywords - PTMi

Acetylation

Proteomic databases

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

More...PaxDbi		Q39212

PRoteomics IDEntifications database

More...PRIDEi		Q39212

ProteomicsDB: a multi-organism proteome resource

More...ProteomicsDBi		228231 [Q39212-1]

<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

ExpressionAtlas, Differential and Baseline Expression

More...ExpressionAtlasi		Q39212, baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...Genevisiblei		Q39212, AT

<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%5Fsection">'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%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Component of the RNA polymerase IV and V complexes.

Interacts with NRPB11, SHH1, GRP23 and NRPD1.

5 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction%5Fsection">Interaction</a>' section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

GO - Molecular functioni

Complete GO annotation on QuickGO ...

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		1391, 8 interactors

Protein interaction database and analysis system

More...IntActi		Q39212, 1 interactor

STRING: functional protein association networks

More...STRINGi		3702.AT2G15400.1

<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

More...SMRi		Q39212

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

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi230 – 233Poly-Val4

<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 archaeal RpoD/eukaryotic RPB3 RNA polymerase subunit family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG1522, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_038421_3_0_1

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		Q39212

Identification of Orthologs from Complete Genome Data

More...OMAi		HDSFVFT

Database for complete collections of gene phylogenies

More...PhylomeDBi		Q39212

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		2.170.120.12, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR001514, DNA-dir_RNA_pol_30-40kDasu_CS
IPR011262, DNA-dir_RNA_pol_insert
IPR011263, DNA-dir_RNA_pol_RpoA/D/Rpb3
IPR036603, RBP11-like
IPR036643, RNApol_insert_sf

Pfam protein domain database

More...Pfami		View protein in Pfam
PF01000, RNA_pol_A_bac, 1 hit
PF01193, RNA_pol_L, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00662, RPOLD, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF55257, SSF55257, 1 hit
SSF56553, SSF56553, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS00446, RNA_POL_D_30KD, 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 describes 1 <p>This subsection of the 'Sequence' section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform. This section is only present in reviewed entries, i.e. in UniProtKB/Swiss-Prot.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoform i produced by alternative splicing. AlignAdd to basket
Note: A number of isoforms are produced. According to EST sequences.

This entry has 1 described isoform and 1 potential isoform that is computationally mapped.Show allAlign All

Isoform 1 (identifier: Q39212-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MDGVTYQRFP TVKIRELKDD YAKFELRETD VSMANALRRV MISEVPTMAI 
        60         70         80         90        100
HLVKIEVNSS VLNDEFIAQR LSLIPLTSER AMSMRFCQDC EDCNGDEHCE 
       110        120        130        140        150
FCSVEFPLSA KCVTDQTLDV TSRDLYSADP TVTPVDFTSN SSTSDSSEHK 
       160        170        180        190        200
GIIIAKLRRG QELKLKALAR KGIGKDHAKW SPAATVTYMY EPDIIINEEM 
       210        220        230        240        250
MNTLTDEEKI DLIESSPTKV FGIDPVTGQV VVVDPEAYTY DEEVIKKAEA 
       260        270        280        290        300
MGKPGLIEIH PKHDSFVFTV ESTGALKASQ LVLNAIDILK QKLDAIRLSD 
       310 
NTVEADDQFG ELGAHMREG
Length:319
Mass (Da):35,575
Last modified:December 1, 2000 - 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:i68C898B882BD130A
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 is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
A8MR04A8MR04_ARATH
DNA-directed RNA polymerase family ...
NRPE3B RBP36B, At2g15400, F26H6.8, F26H6_8
235Annotation 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>

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 conflicti268 – 271FTVE → LSVH in AAB03740 (PubMed:8617787).Curated4

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
L34771 Genomic DNA Translation: AAB03740.1
AC006920 Genomic DNA Translation: AAD22284.1
CP002685 Genomic DNA Translation: AEC06397.1
BT005715 mRNA Translation: AAO64135.1
BT006072 mRNA Translation: AAP04057.1

Protein sequence database of the Protein Information Resource

More...PIRi		E84528
S71177

NCBI Reference Sequences

More...RefSeqi		NP_179142.1, NM_127100.4 [Q39212-1]

Genome annotation databases

Ensembl plant genome annotation project

More...EnsemblPlantsi		AT2G15400.1; AT2G15400.1; AT2G15400 [Q39212-1]

Database of genes from NCBI RefSeq genomes

More...GeneIDi		816032

Gramene; a comparative resource for plants

More...Gramenei		AT2G15400.1; AT2G15400.1; AT2G15400 [Q39212-1]

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		ath:AT2G15400

Keywords - Coding sequence diversityi

Alternative splicing

<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
L34771 Genomic DNA Translation: AAB03740.1
AC006920 Genomic DNA Translation: AAD22284.1
CP002685 Genomic DNA Translation: AEC06397.1
BT005715 mRNA Translation: AAO64135.1
BT006072 mRNA Translation: AAP04057.1
PIRiE84528
S71177
RefSeqiNP_179142.1, NM_127100.4 [Q39212-1]

3D structure databases

SMRiQ39212
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi1391, 8 interactors
IntActiQ39212, 1 interactor
STRINGi3702.AT2G15400.1

Proteomic databases

PaxDbiQ39212
PRIDEiQ39212
ProteomicsDBi228231 [Q39212-1]

Genome annotation databases

EnsemblPlantsiAT2G15400.1; AT2G15400.1; AT2G15400 [Q39212-1]
GeneIDi816032
GrameneiAT2G15400.1; AT2G15400.1; AT2G15400 [Q39212-1]
KEGGiath:AT2G15400

Organism-specific databases

AraportiAT2G15400
TAIRilocus:2047198, AT2G15400

Phylogenomic databases

eggNOGiKOG1522, Eukaryota
HOGENOMiCLU_038421_3_0_1
InParanoidiQ39212
OMAiHDSFVFT
PhylomeDBiQ39212

Miscellaneous databases

Protein Ontology

More...PROi		PR:Q39212

Gene expression databases

ExpressionAtlasiQ39212, baseline and differential
GenevisibleiQ39212, AT

Family and domain databases

Gene3Di2.170.120.12, 1 hit
InterProiView protein in InterPro
IPR001514, DNA-dir_RNA_pol_30-40kDasu_CS
IPR011262, DNA-dir_RNA_pol_insert
IPR011263, DNA-dir_RNA_pol_RpoA/D/Rpb3
IPR036603, RBP11-like
IPR036643, RNApol_insert_sf
PfamiView protein in Pfam
PF01000, RNA_pol_A_bac, 1 hit
PF01193, RNA_pol_L, 1 hit
SMARTiView protein in SMART
SM00662, RPOLD, 1 hit
SUPFAMiSSF55257, SSF55257, 1 hit
SSF56553, SSF56553, 1 hit
PROSITEiView protein in PROSITE
PS00446, RNA_POL_D_30KD, 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 nameiRPD3B_ARATH
<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: Q39212
Secondary accession number(s): Q9SJP1
<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/Swiss-Prot: December 1, 2000
Last sequence update: December 1, 2000
Last modified: December 2, 2020
This is version 167 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)
Annotation programPlant Protein Annotation Program

<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 proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
  2. SIMILARITY comments
    Index of protein domains and families
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