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Entry version 145 (03 Jul 2019)
Sequence version 2 (15 Dec 1998)
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Protein

Splicing factor U2AF 23 kDa subunit

Gene

SPAP8A3.06

Organism
Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast)
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

Necessary for the splicing of pre-mRNA. The SF1-U2AF59-U2AF23 complex has a role in the recognition of the branch site (5'-UACUAAC-3'), the pyrimidine tract and the 3'-splice site at the 3'-end of introns.1 Publication

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section specifies the position(s) and type(s) of zinc fingers within the protein.<p><a href='/help/zn_fing' target='_top'>More...</a></p>Zinc fingeri12 – 40C3H1-type 1PROSITE-ProRule annotationAdd BLAST29
Zinc fingeri143 – 170C3H1-type 2PROSITE-ProRule annotationAdd BLAST28

<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 functionRNA-binding
Biological processmRNA processing, mRNA splicing
LigandMetal-binding, Zinc

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-SPO-159236 Transport of Mature mRNA derived from an Intron-Containing Transcript
R-SPO-72163 mRNA Splicing - Major Pathway
R-SPO-72187 mRNA 3'-end processing

<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:
Splicing factor U2AF 23 kDa subunit
Alternative name(s):
U2 auxiliary factor 23 kDa subunit
Short name:
U2AF23
U2 snRNP auxiliary factor small subunit
<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
ORF Names:SPAP8A3.06
<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>OrganismiSchizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast)
<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 identifieri284812 [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 lineageiEukaryotaFungiDikaryaAscomycotaTaphrinomycotinaSchizosaccharomycetesSchizosaccharomycetalesSchizosaccharomycetaceaeSchizosaccharomyces
<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
  • UP000002485 <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 I

Organism-specific databases

Eukaryotic Pathogen Database Resources

More...
EuPathDBi
FungiDB:SPAP8A3.06

Schizosaccharomyces pombe database

More...
PomBasei
SPAP8A3.06

<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 Cell wall Cytoskeleton Vacuole Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

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.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000819981 – 216Splicing factor U2AF 23 kDa subunitAdd BLAST216

Proteomic databases

MaxQB - The MaxQuant DataBase

More...
MaxQBi
Q09176

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

More...
PaxDbi
Q09176

PRoteomics IDEntifications database

More...
PRIDEi
Q09176

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
Q09176

<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

Forms a heterodimer with the U2AF large subunit. Can also form a homodimer. U2AF large subunit (U2AF59), U2AF small subunit (U2AF23) and SF1 (bpb1) interact to form a complex required for complex A formation.

Interacts with cwf13.

2 Publications

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...
BioGridi
278942, 13 interactors

Protein interaction database and analysis system

More...
IntActi
Q09176, 1 interactor

STRING: functional protein association networks

More...
STRINGi
4896.SPAP8A3.06.1

<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

Secondary structure

1216
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
Q09176

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_and_domains_section">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>Domaini44 – 141RRMPROSITE-ProRule annotationAdd BLAST98

Zinc finger

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri12 – 40C3H1-type 1PROSITE-ProRule annotationAdd BLAST29
Zinc fingeri143 – 170C3H1-type 2PROSITE-ProRule annotationAdd BLAST28

Keywords - Domaini

Repeat, Zinc-finger

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000178619

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q09176

KEGG Orthology (KO)

More...
KOi
K12836

Identification of Orthologs from Complete Genome Data

More...
OMAi
FMHLRLA

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q09176

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
IPR003954 RRM_dom_euk
IPR009145 U2AF_small
IPR000571 Znf_CCCH

The PANTHER Classification System

More...
PANTHERi
PTHR12620 PTHR12620, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00076 RRM_1, 1 hit
PF00642 zf-CCCH, 2 hits

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR01848 U2AUXFACTOR

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00361 RRM_1, 1 hit
SM00356 ZnF_C3H1, 2 hits

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
PS50103 ZF_C3H1, 2 hits

<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.

Q09176-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MASHLASIYG TEQDKVNCSF YYKIGACRHG ERCSRKHVKP NFSQTILCPN
60 70 80 90 100
MYKNPIHEPN GKKFTQRELA EQFDAFYEDM FCEFSKYGEV EQLVVCDNVG
110 120 130 140 150
DHLVGNVYVR FKYEESAQNA IDDLNSRWYS QRPVYAELSP VTDFREACCR
160 170 180 190 200
QHETSECQRG GLCNFMHAKK PSPQLLRDLV LAQRKYLALN AAEEMKKEPN
210
SDSTNRWVSV TAERKN
Length:216
Mass (Da):25,030
Last modified:December 15, 1998 - 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:iAAEDD3DE2DF3507D
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
U48234 Genomic DNA Translation: AAC49805.1
CU329670 Genomic DNA Translation: CAB55173.1

Protein sequence database of the Protein Information Resource

More...
PIRi
T39243

NCBI Reference Sequences

More...
RefSeqi
NP_594945.1, NM_001020376.2

Genome annotation databases

Ensembl fungal genome annotation project

More...
EnsemblFungii
SPAP8A3.06.1; SPAP8A3.06.1:pep; SPAP8A3.06

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
2542482

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
spo:SPAP8A3.06

<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
U48234 Genomic DNA Translation: AAC49805.1
CU329670 Genomic DNA Translation: CAB55173.1
PIRiT39243
RefSeqiNP_594945.1, NM_001020376.2

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
4YH8X-ray1.70A1-216[»]
SMRiQ09176
ModBaseiSearch...

Protein-protein interaction databases

BioGridi278942, 13 interactors
IntActiQ09176, 1 interactor
STRINGi4896.SPAP8A3.06.1

PTM databases

iPTMnetiQ09176

Proteomic databases

MaxQBiQ09176
PaxDbiQ09176
PRIDEiQ09176

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblFungiiSPAP8A3.06.1; SPAP8A3.06.1:pep; SPAP8A3.06
GeneIDi2542482
KEGGispo:SPAP8A3.06

Organism-specific databases

EuPathDBiFungiDB:SPAP8A3.06
PomBaseiSPAP8A3.06

Phylogenomic databases

HOGENOMiHOG000178619
InParanoidiQ09176
KOiK12836
OMAiFMHLRLA
PhylomeDBiQ09176

Enzyme and pathway databases

ReactomeiR-SPO-159236 Transport of Mature mRNA derived from an Intron-Containing Transcript
R-SPO-72163 mRNA Splicing - Major Pathway
R-SPO-72187 mRNA 3'-end processing

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q09176

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
IPR003954 RRM_dom_euk
IPR009145 U2AF_small
IPR000571 Znf_CCCH
PANTHERiPTHR12620 PTHR12620, 1 hit
PfamiView protein in Pfam
PF00076 RRM_1, 1 hit
PF00642 zf-CCCH, 2 hits
PRINTSiPR01848 U2AUXFACTOR
SMARTiView protein in SMART
SM00361 RRM_1, 1 hit
SM00356 ZnF_C3H1, 2 hits
SUPFAMiSSF54928 SSF54928, 1 hit
PROSITEiView protein in PROSITE
PS50102 RRM, 1 hit
PS50103 ZF_C3H1, 2 hits

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 nameiU2AF1_SCHPO
<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: Q09176
<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: November 1, 1997
Last sequence update: December 15, 1998
Last modified: July 3, 2019
This is version 145 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 programFungal 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

3D-structure, Complete proteome, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. Schizosaccharomyces pombe
    Schizosaccharomyces pombe: entries and gene names
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