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Entry version 157 (02 Dec 2020)
Sequence version 1 (01 Nov 1996)
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Protein

U2 small nuclear ribonucleoprotein A'

Gene

LEA1

Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's 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

Involved in pre-mRNA splicing. Associates to U2 snRNA in a MSL1 dependent manner and is required for normal accumulation of U2 snRNA. Required for the spliceosome assembly and the efficient addition of U2 snRNP onto the pre-mRNA.1 Publication

Miscellaneous

Present with 3630 molecules/cell in log phase SD medium.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

  • U2 snRNA binding Source: GO_Central

GO - Biological processi

  • mRNA splicing, via spliceosome Source: SGD

<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 processmRNA processing, mRNA splicing

<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:
U2 small nuclear ribonucleoprotein A'
Short name:
U2 snRNP A'
Alternative name(s):
Looks exceptionally like U2A protein 1
<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:LEA1
Ordered Locus Names:YPL213W
<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>OrganismiSaccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
<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 identifieri559292 [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 lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeSaccharomyces
<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
  • UP000002311 <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 XVI

Organism-specific databases

Eukaryotic Pathogen and Host Database Resources

More...
EuPathDBi
FungiDB:YPL213W

Saccharomyces Genome Database

More...
SGDi
S000006134, LEA1

<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, Spliceosome

<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_00000741891 – 238U2 small nuclear ribonucleoprotein A'Add BLAST238

Proteomic databases

MaxQB - The MaxQuant DataBase

More...
MaxQBi
Q08963

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

More...
PaxDbi
Q08963

PRoteomics IDEntifications database

More...
PRIDEi
Q08963

<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

Belongs to the CWC complex (or CEF1-associated complex), a spliceosome sub-complex reminiscent of a late-stage spliceosome composed of the U2, U5 and U6 snRNAs and at least BUD13, BUD31, BRR2, CDC40, CEF1, CLF1, CUS1, CWC2, CWC15, CWC21, CWC22, CWC23, CWC24, CWC25, CWC27, ECM2, HSH155, IST3, ISY1, LEA1, MSL1, NTC20, PRP8, PRP9, PRP11, PRP19, PRP21, PRP22, PRP45, PRP46, SLU7, SMB1, SMD1, SMD2, SMD3, SMX2, SMX3, SNT309, SNU114, SPP2, SYF1, SYF2, RSE1 and YJU2.

Interacts with MSL1.

2 Publications

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
35972, 691 interactors

ComplexPortal: manually curated resource of macromolecular complexes

More...
ComplexPortali
CPX-1651, PRP19-associated complex
CPX-26, U2 snRNP

Database of interacting proteins

More...
DIPi
DIP-2399N

Protein interaction database and analysis system

More...
IntActi
Q08963, 29 interactors

Molecular INTeraction database

More...
MINTi
Q08963

STRING: functional protein association networks

More...
STRINGi
4932.YPL213W

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...
RNActi
Q08963, protein

<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

1238
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
Q08963

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
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 'Family and Domains' section indicates the positions and types of repeated sequence motifs or repeated domains within the protein.<p><a href='/help/repeat' target='_top'>More...</a></p>Repeati53 – 74LRR 1Add BLAST22
Repeati75 – 95LRR 2Add BLAST21
Repeati97 – 118LRR 3Add BLAST22
<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>Domaini132 – 170LRRCTAdd BLAST39

<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

Keywords - Domaini

Leucine-rich repeat, Repeat

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1644, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000153289

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_061027_3_0_1

Identification of Orthologs from Complete Genome Data

More...
OMAi
PNYREYM

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.80.10.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001611, Leu-rich_rpt
IPR032675, LRR_dom_sf
IPR003603, U2A'_phosphoprotein32A_C

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00446, LRRcap, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS51450, LRR, 3 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%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.

Q08963-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKFTPSIVID APQYYVDHFN GKYNVDKCVI LRDLQLETDS ESMPSSLKHL
60 70 80 90 100
TKPTHILDLT NNDLIMIPDL SRRDDIHTLL LGRNNIVEVD GRLLPMNVQN
110 120 130 140 150
LTLSNNSIRR FEDLQRLRRA PRTLKNLTLI GNQVCHLANY REHVLRLVPH
160 170 180 190 200
LETLDFQNVT AEERKSAMSF PRQADGDTLG PVNTAIRDNG SRDKTMEIMN
210 220 230
LVVSKMTVER RNELKKQLAE ATSLEEIARL EKLLSGGV
Length:238
Mass (Da):27,193
Last modified:November 1, 1996 - 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:i0E92A1922BFEDC25
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
Z73569 Genomic DNA Translation: CAA97928.1
AY558137 Genomic DNA Translation: AAS56463.1
BK006949 Genomic DNA Translation: DAA11223.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S65232

NCBI Reference Sequences

More...
RefSeqi
NP_015111.1, NM_001184027.1

Genome annotation databases

Ensembl fungal genome annotation project

More...
EnsemblFungii
YPL213W_mRNA; YPL213W; YPL213W

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
855888

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
sce:YPL213W

<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
Z73569 Genomic DNA Translation: CAA97928.1
AY558137 Genomic DNA Translation: AAS56463.1
BK006949 Genomic DNA Translation: DAA11223.1
PIRiS65232
RefSeqiNP_015111.1, NM_001184027.1

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
5GMKelectron microscopy3.40b1-238[»]
5LJ3electron microscopy3.80W1-238[»]
5LJ5electron microscopy3.80W1-238[»]
5MQ0electron microscopy4.17W1-238[»]
5NRLelectron microscopy7.20W1-238[»]
5WSGelectron microscopy4.00Y1-238[»]
5Y88electron microscopy3.70o1-238[»]
5YLZelectron microscopy3.60o1-238[»]
5ZWMelectron microscopy3.40o1-238[»]
5ZWOelectron microscopy3.90o1-238[»]
6BK8electron microscopy3.30s1-238[»]
6EXNelectron microscopy3.70W1-238[»]
6G90electron microscopy4.00W1-238[»]
6J6Gelectron microscopy3.20b1-238[»]
6J6Helectron microscopy3.60b1-238[»]
6J6Nelectron microscopy3.86b1-238[»]
6J6Qelectron microscopy3.70b1-238[»]
SMRiQ08963
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi35972, 691 interactors
ComplexPortaliCPX-1651, PRP19-associated complex
CPX-26, U2 snRNP
DIPiDIP-2399N
IntActiQ08963, 29 interactors
MINTiQ08963
STRINGi4932.YPL213W

Proteomic databases

MaxQBiQ08963
PaxDbiQ08963
PRIDEiQ08963

Genome annotation databases

EnsemblFungiiYPL213W_mRNA; YPL213W; YPL213W
GeneIDi855888
KEGGisce:YPL213W

Organism-specific databases

EuPathDBiFungiDB:YPL213W
SGDiS000006134, LEA1

Phylogenomic databases

eggNOGiKOG1644, Eukaryota
GeneTreeiENSGT00940000153289
HOGENOMiCLU_061027_3_0_1
OMAiPNYREYM

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q08963
RNActiQ08963, protein

Family and domain databases

Gene3Di3.80.10.10, 1 hit
InterProiView protein in InterPro
IPR001611, Leu-rich_rpt
IPR032675, LRR_dom_sf
IPR003603, U2A'_phosphoprotein32A_C
SMARTiView protein in SMART
SM00446, LRRcap, 1 hit
PROSITEiView protein in PROSITE
PS51450, LRR, 3 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 nameiRU2A_YEAST
<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: Q08963
Secondary accession number(s): D6W3F7
<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: August 30, 2005
Last sequence update: November 1, 1996
Last modified: December 2, 2020
This is version 157 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 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, Reference proteome

Documents

  1. Yeast chromosome XVI
    Yeast (Saccharomyces cerevisiae) chromosome XVI: entries and gene names
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families
  4. Yeast
    Yeast (Saccharomyces cerevisiae): entries, gene names and cross-references to SGD
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