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Protein

Splicing factor U2af small subunit A

Gene

U2AF35A

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

Necessary for the splicing of pre-mRNA (By similarity). Probably active at the 3' splice sites.By similarity

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri12 – 40C3H1-type 1PROSITE-ProRule annotationAdd BLAST29
Zinc fingeri148 – 175C3H1-type 2PROSITE-ProRule annotationAdd BLAST28

GO - Molecular functioni

GO - Biological processi

  • mRNA splicing, via spliceosome Source: GO_Central
  • photoperiodism, flowering Source: TAIR

Keywordsi

Molecular functionDNA-binding, RNA-binding
Biological processmRNA processing, mRNA splicing
LigandMetal-binding, Zinc

Enzyme and pathway databases

ReactomeiR-ATH-72163. mRNA Splicing - Major Pathway.

Names & Taxonomyi

Protein namesi
Recommended name:
Splicing factor U2af small subunit A
Alternative name(s):
U2 auxiliary factor 35 kDa subunit A
U2 small nuclear ribonucleoprotein auxiliary factor small subunit A
Short name:
U2 snRNP auxiliary factor small subunit A
Zinc finger CCCH domain-containing protein 8
Short name:
AtC3H8
Gene namesi
Name:U2AF35A
Synonyms:AUSA
Ordered Locus Names:At1g27650
ORF Names:T17H3.14, T22C5.10
OrganismiArabidopsis thaliana (Mouse-ear cress)
Taxonomic identifieri3702 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
Proteomesi
  • UP000006548 Componenti: Chromosome 1

Organism-specific databases

AraportiAT1G27650.
TAIRilocus:2196929. AT1G27650.

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Chloroplast Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertion Graphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Nucleus, Spliceosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003719611 – 296Splicing factor U2af small subunit AAdd BLAST296

Proteomic databases

PaxDbiQ9S709.

PTM databases

iPTMnetiQ9S709.

Expressioni

Gene expression databases

ExpressionAtlasiQ9S709. baseline and differential.
GenevisibleiQ9S709. AT.

Interactioni

Subunit structurei

Component of the spliceosome. Homo- and heterodimer. Interacts with U2AF35B, RNU1 and SR45.1 Publication

Protein-protein interaction databases

BioGridi24892. 5 interactors.
IntActiQ9S709. 5 interactors.
STRINGi3702.AT1G27650.1.

Structurei

3D structure databases

ProteinModelPortaliQ9S709.
SMRiQ9S709.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini44 – 146RRMPROSITE-ProRule annotationAdd BLAST103

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Compositional biasi178 – 288Arg/Ser-rich (RS domain)Add BLAST111

Sequence similaritiesi

Belongs to the splicing factor SR family.Curated

Zinc finger

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri12 – 40C3H1-type 1PROSITE-ProRule annotationAdd BLAST29
Zinc fingeri148 – 175C3H1-type 2PROSITE-ProRule annotationAdd BLAST28

Keywords - Domaini

Repeat, Zinc-finger

Phylogenomic databases

eggNOGiKOG2202. Eukaryota.
ENOG410Z5PX. LUCA.
HOGENOMiHOG000178619.
InParanoidiQ9S709.
KOiK12836.
OMAiVQEHYDS.
OrthoDBiEOG09360LUX.
PhylomeDBiQ9S709.

Family and domain databases

Gene3Di4.10.1000.10. 1 hit.
InterProiView protein in InterPro
IPR035979. RBD_domain_sf.
IPR000504. RRM_dom.
IPR003954. RRM_dom_euk.
IPR009145. U2AF_small.
IPR000571. Znf_CCCH.
IPR036855. Znf_CCCH_sf.
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.

Sequencei

Sequence statusi: Complete.

This entry describes 1 isoform i produced by alternative splicing. AlignAdd to basket

Note: A number of isoforms are produced. According to EST sequences.
Isoform 1 (identifier: Q9S709-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the 'canonical' 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
MAEHLASIFG TEKDRVNCPF YFKIGACRHG DRCSRLHNRP TISPTLLLSN
60 70 80 90 100
MYQRPDMITP GVDAQGQPLD PRKIQEHFED FFEDLFEELG KFGEIESLNI
110 120 130 140 150
CDNLADHMIG NVYVQFKEED QAAAALQALQ GRFYSGRPII ADFSPVTDFR
160 170 180 190 200
EATCRQYEEN NCNRGGYCNF MHVKLVSREL RRKLFGRYRR SYRRGSRSRS
210 220 230 240 250
RSRSISPRNK RDNDRRDPSH REFSHRDRDR EFYRHGSGKR SSERSERQER
260 270 280 290
DGSRGRRQAS PKRGGSPGGG REGSEERRAR IEQWNREREE KEEGGA
Length:296
Mass (Da):34,572
Last modified:May 1, 2000 - v1
Checksum:iF284D29BF68445BF
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti163N → Y in AAL06331 (PubMed:16407443).Curated1
Sequence conflicti185F → S in AAL06331 (PubMed:16407443).Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF409139 mRNA. Translation: AAL06331.1.
AC005916 Genomic DNA. Translation: AAD46002.1.
AC012375 Genomic DNA. Translation: AAF24943.1.
CP002684 Genomic DNA. Translation: AEE30858.1.
AF344324 mRNA. Translation: AAK06875.1.
AY065202 mRNA. Translation: AAL38678.1.
AY090343 mRNA. Translation: AAL91249.1.
AY096507 mRNA. Translation: AAM20157.1.
AY122894 mRNA. Translation: AAM67427.1.
AY088540 mRNA. Translation: AAM66073.1.
RefSeqiNP_174086.1. NM_102530.3. [Q9S709-1]
UniGeneiAt.20200.
At.63995.
At.67851.

Genome annotation databases

EnsemblPlantsiAT1G27650.1; AT1G27650.1; AT1G27650. [Q9S709-1]
GeneIDi839657.
GrameneiAT1G27650.1; AT1G27650.1; AT1G27650.
KEGGiath:AT1G27650.

Keywords - Coding sequence diversityi

Alternative splicing

Similar proteinsi

Entry informationi

Entry nameiU2AFA_ARATH
AccessioniPrimary (citable) accession number: Q9S709
Secondary accession number(s): Q945S1
Entry historyiIntegrated into UniProtKB/Swiss-Prot: May 5, 2009
Last sequence update: May 1, 2000
Last modified: October 25, 2017
This is version 134 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

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