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Entry version 148 (02 Jun 2021)
Sequence version 1 (01 Oct 2000)
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Protein

Polyadenylate-binding protein 3

Gene

PABN3

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

Involved in the 3'-end formation of mRNA precursors (pre-mRNA) by the addition of a poly(A) tail of 200-250 nt to the upstream cleavage product. Stimulates poly(A) polymerase (PAPOLA) conferring processivity on the poly(A) tail elongation reaction and controls also the poly(A) tail length. Increases the affinity of poly(A) polymerase for RNA. Binds to poly(A) and to poly(G) with high affinity. May protect the poly(A) tail from degradation.

By similarity

<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

<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 functionRNA-binding

<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:
Polyadenylate-binding protein 31 Publication
Short name:
AtPabN21 Publication
Short name:
AtPabN31 Publication
Short name:
Poly(A)-binding protein 31 Publication
Alternative name(s):
Nuclear poly(A)-binding protein 3Curated
Poly(A)-binding protein IIICurated
Short name:
PABIIICurated
<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:PABN31 Publication
Ordered Locus Names:At5g10350Imported
ORF Names:F12B17.300Imported
<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)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 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 lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliopsidaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
<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 5

Organism-specific databases

Arabidopsis Information Portal

More...
Araporti
AT5G10350

The Arabidopsis Information Resource

More...
TAIRi
locus:2142519, AT5G10350

<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

Cytoplasm, 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_00004313301 – 217Polyadenylate-binding protein 3Add BLAST217

Proteomic databases

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

More...
PaxDbi
Q9LX90

PRoteomics IDEntifications database

More...
PRIDEi
Q9LX90

ProteomicsDB: a multi-organism proteome resource

More...
ProteomicsDBi
248648 [Q9LX90-1]

<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
Q9LX90, baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q9LX90, 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

Monomer and homooligomer (PubMed:18479511). Binds RNA as a monomer and oligomerizes when bound to poly(A) (By similarity).

Forms a complex with cleavage and polyadenylation specificity factor (CPSF) subunits PAPS4, PABN1, PABN2, CSTF50 and FIPS5 (PubMed:18479511).

Interacts with CSP3 (PubMed:23334891).

By similarity2 Publications

GO - Molecular functioni

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
16177, 10 interactors

Protein interaction database and analysis system

More...
IntActi
Q9LX90, 8 interactors

STRING: functional protein association networks

More...
STRINGi
3702.AT5G10350.1

<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

<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>Domaini89 – 165RRMPROSITE-ProRule annotationAdd BLAST77

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni1 – 28DisorderedSequence analysisAdd BLAST28
Regioni75 – 216Necessary for homooligomerizationBy similarityAdd BLAST142

Coiled coil

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and domains' section denotes the positions of regions of coiled coil within the protein.<p><a href='/help/coiled' target='_top'>More...</a></p>Coiled coili30 – 71Sequence analysisAdd BLAST42

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi162 – 169Nuclear localization signalPROSITE-ProRule annotation8

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The RRM domain is essential for the recognition of specific adenine bases in the poly(A) tail, but not sufficient for poly(A) binding.By similarity

Keywords - Domaini

Coiled coil

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG4209, Eukaryota

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q9LX90

Identification of Orthologs from Complete Genome Data

More...
OMAi
MDPRTTE

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q9LX90

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.30.70.330, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR012677, Nucleotide-bd_a/b_plait_sf
IPR035979, RBD_domain_sf
IPR000504, RRM_dom

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00076, RRM_1, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00360, RRM, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF54928, SSF54928, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50102, RRM, 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>Sequences (3+)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 3 <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.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket

This entry has 3 described isoforms and 1 potential isoform that is computationally mapped.Show allAlign All

Isoform 1 (identifier: Q9LX90-1) [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
MEEEEHEVYG GEIPEVGDTD VPDPDIDMSA ADEDAVTELA EMKRRLKEME
60 70 80 90 100
EEAAALREMQ AKVEKEMGAT QDPASMAANQ EGKEEVDARS VYVGNVDYAC
110 120 130 140 150
TPEEVQLHFQ TCGTVNRVTI LMDKFGQPKG FAYVEFVEVE AVQEALQLNE
160 170 180 190 200
SELHGRQLKV SPKRTNVPGM KQYHPGRFNP SMGYRFRRPF VPPYFYSPYG
210
YGKAPRFRRP MRYMPYQ
Length:217
Mass (Da):24,804
Last modified:October 1, 2000 - 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:i78DDB8A0947DAE35
GO
Isoform 2 (identifier: Q9LX90-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-95: MEEEEHEVYG...VDARSVYVGN → MLAFYH

Show »
Length:128
Mass (Da):15,110
Checksum:i9E584F8A0F91531F
GO
Isoform 3 (identifier: Q9LX90-3) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     203-217: Missing.

Show »
Length:202
Mass (Da):22,824
Checksum:i0216042CFF03902E
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
A0A1P8BBR0A0A1P8BBR0_ARATH
RNA-binding (RRM/RBD/RNP motifs) fa...
At5g10350, F12B17.300, F12B17_300
96Annotation 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>

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting.<p><a href='/help/var_seq' target='_top'>More...</a></p>Alternative sequenceiVSP_0572351 – 95MEEEE…VYVGN → MLAFYH in isoform 2. Add BLAST95
Alternative sequenceiVSP_057236203 – 217Missing in isoform 3. Add BLAST15

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
AL353995 Genomic DNA Translation: CAB89408.1
CP002688 Genomic DNA Translation: AED91528.1
CP002688 Genomic DNA Translation: AED91529.1
BT003893 mRNA Translation: AAO41941.1
BT005003 mRNA Translation: AAO50536.1

Protein sequence database of the Protein Information Resource

More...
PIRi
T50004

NCBI Reference Sequences

More...
RefSeqi
NP_196597.1, NM_121073.4 [Q9LX90-1]
NP_850803.1, NM_180472.1 [Q9LX90-3]

Genome annotation databases

Ensembl plant genome annotation project

More...
EnsemblPlantsi
AT5G10350.1; AT5G10350.1; AT5G10350 [Q9LX90-1]
AT5G10350.2; AT5G10350.2; AT5G10350 [Q9LX90-3]

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
830899

Gramene; a comparative resource for plants

More...
Gramenei
AT5G10350.1; AT5G10350.1; AT5G10350 [Q9LX90-1]
AT5G10350.2; AT5G10350.2; AT5G10350 [Q9LX90-3]

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ath:AT5G10350

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
AL353995 Genomic DNA Translation: CAB89408.1
CP002688 Genomic DNA Translation: AED91528.1
CP002688 Genomic DNA Translation: AED91529.1
BT003893 mRNA Translation: AAO41941.1
BT005003 mRNA Translation: AAO50536.1
PIRiT50004
RefSeqiNP_196597.1, NM_121073.4 [Q9LX90-1]
NP_850803.1, NM_180472.1 [Q9LX90-3]

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...

Protein-protein interaction databases

BioGRIDi16177, 10 interactors
IntActiQ9LX90, 8 interactors
STRINGi3702.AT5G10350.1

Proteomic databases

PaxDbiQ9LX90
PRIDEiQ9LX90
ProteomicsDBi248648 [Q9LX90-1]

Genome annotation databases

EnsemblPlantsiAT5G10350.1; AT5G10350.1; AT5G10350 [Q9LX90-1]
AT5G10350.2; AT5G10350.2; AT5G10350 [Q9LX90-3]
GeneIDi830899
GrameneiAT5G10350.1; AT5G10350.1; AT5G10350 [Q9LX90-1]
AT5G10350.2; AT5G10350.2; AT5G10350 [Q9LX90-3]
KEGGiath:AT5G10350

Organism-specific databases

AraportiAT5G10350
TAIRilocus:2142519, AT5G10350

Phylogenomic databases

eggNOGiKOG4209, Eukaryota
InParanoidiQ9LX90
OMAiMDPRTTE
PhylomeDBiQ9LX90

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q9LX90

Gene expression databases

ExpressionAtlasiQ9LX90, baseline and differential
GenevisibleiQ9LX90, AT

Family and domain databases

Gene3Di3.30.70.330, 1 hit
InterProiView protein in InterPro
IPR012677, Nucleotide-bd_a/b_plait_sf
IPR035979, RBD_domain_sf
IPR000504, RRM_dom
PfamiView protein in Pfam
PF00076, RRM_1, 1 hit
SMARTiView protein in SMART
SM00360, RRM, 1 hit
SUPFAMiSSF54928, SSF54928, 1 hit
PROSITEiView protein in PROSITE
PS50102, RRM, 1 hit

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 nameiPABN3_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: Q9LX90
Secondary accession number(s): F4KGU0, F4KGU1
<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: November 26, 2014
Last sequence update: October 1, 2000
Last modified: June 2, 2021
This is version 148 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 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
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