Collated Gene Ontology terms

Biological process:

Molecular function: spliceosomal tri-snRNP complex assembly2013, 2017, 2021, 2025 mRNA processing2025 RNA splicing2025 spliceosomal snRNP assembly2025 negative regulation of mRNA splicing, via spliceosome2025 mRNA cis splicing, via spliceosome2023

Cellular component: spliceosomal complex2009, 2025 nuclear dicing body2022, 2025 microprocessor complex2022, 2025 cytoplasm2014, 2025 U5 snRNP2005, 2013, 2021 nucleus2009, 2025 small nuclear ribonucleoprotein complex2014 cytosol2009 chloroplast2018

Phylogenetic distribution

Chordates: 22/21 
Echinoderms: 0/0 
Hemichordates: 1/1 
Annelids: 1/1 
Molluscs: 0/0 
Bryozoans: 0/0 
Platyhelminthes: 0/0 
Rotifers: 0/0 
Nematodes: 3/3 
Arthropods: 4/5 
Tardigrades: 0/0 
Placozoa: 1/1 
Cnidaria: 1/1 
Porifera: 0/0 
Choanoflagellates+: 14/1 
Dikarya: 0/14 
Fungi (other): 0/1 
Protozoa: 2/3 
Excavates: 0/4 
Harosa: 3/4 
Hacrobia: 0/0 
Plants: 38/39 
Archea: 0/8 
Bacteria: 0/35 

Find a cluster

Protein ID:
UniProt ID, accession, gene name or model org. database name
Cluster ID:
e.g. "UKP00123" or "123"

Download

Protein sequences (FASTA format)

Knownness history

2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 0 2 4 6 8 10 Knownness

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Proteins

UniProt ID
Organism DB»		 Standard knownness clustom knownness Gene name Description Species  [Key only] GO terms Seq. links Protein domain links
W1PIN5_AMBTC
neXtProt»
0.0
AMTR_s00005p00267850 AAR2 C-terminal domain-containing protein Amborella trichopoda
TI:13333 None
 
H9G5L0_ANOCA
Ensembl»
0.0
aar2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Anolis carolinensis
TI:28377 None
   
Q9C711_ARATH
TAIR»
0.5
At1g66510 AAR2 protein family (At1g66510/F28G11_5) Arabidopsis thaliana
TI:3702 None
 
Q4X1C7_ASPFU
TubercuList»
0.0
AFUA_2G10430 AAR2 family protein Aspergillus fumigatus
TI:746128 None
 
F4NV25_BATDJ
neXtProt»
0.0
BATDEDRAFT_85171 AAR2 protein Batrachochytrium dendrobatidis
TI:109871 None
 
AAR2_BOVIN
Ensembl»
0.0
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Bos taurus
TI:9913 None
 
I1IVM6_BRADI
EnsemblPlants»
0.0
LOC100823640 Protein AAR2 homolog Brachypodium distachyon
TI:15368 None
 
A0A9J7MV95_BRAFL
euHCVdb»
0.0
LOC118419053 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Branchiostoma floridae
TI:7739 None
   
A0A078HEK5_BRANA
euHCVdb»
0.0
BnaC06g27500D (rape) hypothetical
protein (BnaC06g27500D protein)		 Brassica napus
TI:3708 None
 
M4CIY8_BRACM
EnsemblPlants»
0.0
AAR2 protein family Brassica campestris
TI:3711 None
   
A8WN60_CAEBR
WormBase»
0.0
CBG00743 CBG_00743 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Caenorhabditis briggsae
TI:6238 None
 
AAR2_CAEEL
WormBase»
0.5
F10B5.2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Caenorhabditis elegans
TI:6239 None
 
A0A8I3PVG7_CANLF
Ensembl»
0.0
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Canis lupus
TI:9612 None
   
A0A1U8FNK5_CAPAN
euHCVdb»
0.0
T459_06427 Protein AAR2 homolog Capsicum annuum
TI:4072 None
 
A0A2K3DSB7_CHLRE
euHCVdb»
0.0
CHLRE_05g244750v5 Uncharacterized protein Chlamydomonas reinhardtii
TI:3055 None
 
F6XWZ8_CIOIN
Ensembl»
0.0
LOC100180520 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Ciona intestinalis
TI:7719 None
   
A0A067FI59_CITSI
euHCVdb»
0.0
CISIN_1g016504mg Protein AAR2 homolog Citrus sinensis
TI:2711 None 		 
 
Q5KPA5_CRYD1
TubercuList»
0.0
CNA03520 Expressed protein Cryptococcus deneoformans
TI:40410 None
 
A0A0A0M0D1_CUCSA
euHCVdb»
0.0
Csa_1G633380 Protein AAR2 homolog Cucumis sativus
TI:3659 None
 
F1R8D9_DANRE
ZFIN»
0.5
aar2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Danio rerio
TI:7955 None
 
E9HC85_DAPPU
euHCVdb»
0.0
DAPPUDRAFT_202160 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Daphnia pulex
TI:6669 None
 
F0ZRI7_DICPU
TubercuList»
0.0
DICPUDRAFT_80783 AAR2-domain-containing protein Dictyostelium purpureum
TI:5786 None
 
Q54R71_DICDI
dictyBase»
0.5
DDB_G0283361 Protein AAR2 homolog Dictyostelium discoideum
TI:44689 None
 
Q9VEA6_DROME
FlyBase»
1.0
Dmel\CG12320 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Drosophila melanogaster
TI:7227 None
 
C8V3E4_EMENI
TubercuList»
0.0
ANIA_10758 AAR2 family
protein (AFU_orthologue AFUA_2G10430)		 Emericella nidulans
TI:162425 None
 
A0A9L0SQS8_HORSE
Ensembl»
0.0
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Equus caballus
TI:9796 None
   
Q74Z30_EREGS
euHCVdb»
0.0
AGOS_AGR376W AGR376Wp Eremothecium gossypii
TI:33169 None
 
A0A022RLJ5_ERYGU
euHCVdb»
0.0
MIMGU_mgv1a007725mg Protein AAR2 homolog Erythranthe guttata
TI:4155 None
 
A0ABI8AFI0_FELCA
Ensembl»
0.0
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Felis catus
TI:9685 None 		     
F1P5Y2_CHICK
Ensembl»
0.5
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Gallus gallus
TI:9031 None
   
A0A0R0GAP0_SOYBN
EnsemblPlants»
0.0
LOC100778021 Protein AAR2 homolog Glycine max
TI:3847 None 		 
 
K7KAL2_SOYBN
EnsemblPlants»
0.0
LOC100800202 Protein AAR2 homolog Glycine max
TI:3847 None
 
G3RWS2_GORGO
Ensembl»
0.0
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Gorilla gorilla
TI:9593 None
 
A0A1U8KH16_GOSHI
neXtProt»
0.0
LOC107915606 Protein AAR2 homolog isoform X1 Gossypium hirsutum
TI:3635 None
   
A0A1U8L5Y3_GOSHI
euHCVdb»
0.0
LOC107928300 AAR2 C-terminal domain-containing protein Gossypium hirsutum
TI:3635 None
   
A0A1U8NP63_GOSHI
euHCVdb»
0.0
LOC107950441 Protein AAR2 homolog Gossypium hirsutum
TI:3635 None
   
A0ABM2YQE1_GOSHI
euHCVdb»
0.0
LOC121206212 AAR2 C-terminal domain-containing protein Gossypium hirsutum
TI:3635 None
   
A0ABM2YWD5_GOSHI
euHCVdb»
0.0
LOC107938755 AAR2 C-terminal domain-containing protein Gossypium hirsutum
TI:3635 None
   
A0ABM2ZNR6_GOSHI
euHCVdb»
0.0
LOC121214595 Uncharacterized protein isoform X1 Gossypium hirsutum
TI:3635 None
   
A0A251T893_HELAN
euHCVdb»
0.0
HannXRQ_Chr11g0325221 Putative AAR2 protein family Helianthus annuus
TI:4232 None
 
A0A9K3HLF8_HELAN
neXtProt»
0.0
HanXRQr2_Chr11g0470221 A1 cistron-splicing factor,
AAR2, AAR2 domain superfamily		 Helianthus annuus
TI:4232 None
 
T1G1A5_HELRO
EnsemblMetazoa»
0.0
20214853 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Helobdella robusta
TI:6412 None
 
AAR2_HUMAN
Ensembl»
2.2
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Homo sapiens
TI:9606 None
 
F2EA75_HORVV
EnsemblPlants»
0.0
LOC123431498 Predicted protein Hordeum vulgare
TI:4513 None
 
B7PMS5_IXOSC
EnsemblMetazoa»
0.0
IscW_ISCW019199 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Ixodes scapularis
TI:6945 None
 
A0A2I4GIN3_JUGRE
neXtProt»
0.0
LOC109008195 Protein AAR2 homolog isoform X1 Juglans regia
TI:51240 None
   
A0A1Y1IGB0_KLENI
neXtProt»
0.0
KFL_005740010 AAR2 protein family Klebsormidium nitens
TI:105231 None
 
W5MBL6_LEPOC
Ensembl»
0.0
Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Lepisosteus oculatus
TI:7918 None
 
H9EUV9_MACMU
Ensembl»
0.0
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Macaca mulatta
TI:9544 None
 
A0A2C9WK02_MANES
euHCVdb»
0.0
MANES_01G115300v8 Protein AAR2 homolog Manihot esculenta
TI:3983 None
 
A0A2R6W0A8_MARPO
euHCVdb»
0.0
MARPO_0209s0005 Protein AAR2 homolog Marchantia polymorpha
TI:3197 None
 
G7KBQ2_MEDTR
EnsemblPlants»
0.0
11439395 A1 cistron-splicing factor AAR2
(Putative A1 cistron-splicing factor, AAR2)		 Medicago truncatula
TI:3880 None
 
F7BCP7_MONDO
Ensembl»
0.0
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Monodelphis domestica
TI:13616 None
   
A9UPH9_MONBE
euHCVdb»
0.0
MONBRDRAFT_21032 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Monosiga brevicollis
TI:81824 None
 
AAR2_MOUSE
Ensembl»
0.5
Aar2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Mus musculus
TI:10090 None
 
A0A804KY84_MUSAM
EnsemblPlants»
0.0
Protein AAR2 homolog Musa acuminata
TI:4641 None
   
A0A1U8AA12_NELNU
euHCVdb»
0.0
LOC104598154 Protein AAR2 homolog isoform X1 Nelumbo nucifera
TI:4432 None
   
A7RIW5_NEMVE
euHCVdb»
0.0
NEMVEDRAFT_v1g159311 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Nematostella vectensis
TI:45351 None
 
Q7SBW4_NEUCR
TubercuList»
0.0
NCU07844 AAR2 domain-containing protein Neurospora crassa
TI:5141 None
 
A0A1S3Z0J6_TOBAC
euHCVdb»
0.0
LOC107781751 Protein AAR2 homolog
(Uncharacterized protein LOC107781751)		 Nicotiana tabacum
TI:4097 None
   
A0A1S4A4Q9_TOBAC
neXtProt»
0.0
LOC107793749 Protein AAR2 homolog isoform X1
(Uncharacterized protein LOC107793749 isoform X1)		 Nicotiana tabacum
TI:4097 None
   
A0A6I8NII6_ORNAN
Ensembl»
0.0
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Ornithorhynchus anatinus
TI:9258 None
   
A0A0P0W6D8_ORYSJ
euHCVdb»
0.0
Os04g0132300 Os04g0132300 protein Oryza sativa
TI:4530 None
 
H2M0R9_ORYLA
Ensembl»
0.0
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Oryzias latipes
TI:8090 None
   
H2QKA2_PANTR
Ensembl»
0.0
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Pan troglodytes
TI:9598 None
 
A0DKV2_PARTE
euHCVdb»
0.0
GSPATT00017985001 AAR2 protein Paramecium tetraurelia
TI:5888 None
 
A0A7U2ERX7_PHANO
TubercuList»
0.0
JI435_021420 Uncharacterized protein Phaeosphaeria nodorum
TI:13684 None 		 
 
A0A2K1JBH1_PHYPA
EnsemblPlants»
0.0
LOC112292011 Protein AAR2 homolog Physcomitrium patens
TI:3218 None
 
Q8IER1_PLAF7
TubercuList»
0.0
PF3D7_1305400 AAR2 protein, putative Plasmodium falciparum
TI:5833 None
 
A0A2K1X709_POPTR
euHCVdb»
0.0
POPTR_017G123900 AAR2 family protein Populus trichocarpa
TI:3694 None
 
A0A2A6D3D3_PRIPA
EnsemblMetazoa»
0.0
WBGene00278489 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Pristionchus pacificus
TI:54126 None
   
M5WS96_PRUPE
euHCVdb»
0.0
PRUPE_3G158200 Protein AAR2 homolog Prunus persica
TI:3760 None
 
E3KYV0_PUCGT
TubercuList»
0.0
PGTG_15338 Uncharacterized protein Puccinia graminis
TI:5297 None
 
E3L4M1_PUCGT
TubercuList»
0.0
PGTG_17746 Uncharacterized protein Puccinia graminis
TI:5297 None
 
A0A0G2K0P7_RAT
RGD»
0.0
Aar2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Rattus norvegicus
TI:10116 None
   
B9T7Q0_RICCO
euHCVdb»
0.0
RCOM_0140520 Protein C20orf4, putative Ricinus communis
TI:3988 None
 
AAR2_YEAST
SGD»
1.9
AAR2 A1 cistron-splicing factor AAR2 Saccharomyces cerevisiae
TI:4932 None
 
AAR2_SCHPO
PomBase»
1.3
aar2 A1 cistron-splicing factor aar2 Schizosaccharomyces pombe
TI:4896 None
 
B6JY88_SCHJY
TubercuList»
0.0
aar2 U5 snRNP-associated protein Aar2 Schizosaccharomyces japonicus
TI:4897 None
 
A7E469_SCLS1
TubercuList»
0.0
SS1G_00091 Aar2 protein Sclerotinia sclerotiorum
TI:5180 None
 
D8SCH0_SELML
euHCVdb»
0.0
SELMODRAFT_178632 Protein AAR2 homolog Selaginella moellendorffii
TI:88036 None
 
D8SGP8_SELML
neXtProt»
0.0
SELMODRAFT_179560 Protein AAR2 homolog Selaginella moellendorffii
TI:88036 None
 
K3YDR6_SETIT
EnsemblPlants»
0.0
AAR2 C-terminal domain-containing protein Setaria italica
TI:4555 None 		 
 
K3YED1_SETIT
EnsemblPlants»
0.0
AAR2 N-terminal domain-containing protein Setaria italica
TI:4555 None 		 
 
A0A3Q7FAS0_SOLLC
EnsemblPlants»
0.0
LOC101259997 Protein AAR2 homolog Solanum lycopersicum
TI:4081 None
   
M1D0P0_SOLTU
EnsemblPlants»
0.0
LOC102597990 AAR2 protein family Solanum tuberosum
TI:4113 None
   
C5YC36_SORBI
euHCVdb»
0.0
SORBI_3006G013100 Uncharacterized protein Sorghum bicolor
TI:4558 None
 
A0A9R0IZA3_SPIOL
neXtProt»
0.0
LOC110797538 Protein AAR2 homolog Spinacia oleracea
TI:3562 None
   
A0A7M7REW4_STRPU
EnsemblMetazoa»
0.0
Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Strongylocentrotus purpuratus
TI:7668 None
   
F1S484_PIG
Ensembl»
0.0
AAR2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Sus scrofa
TI:9823 None
   
B8C538_THAPS
neXtProt»
0.0
THAPSDRAFT_22978 AAR2 C-terminal domain-containing protein Thalassiosira pseudonana
TI:35128 None
 
A0A061EH73_THECC
euHCVdb»
0.0
TCM_019270 AAR2 protein family isoform 3 Theobroma cacao
TI:3641 None
 
D6W9G5_TRICA
euHCVdb»
0.0
AUGUSTUS-3.0.2_00584 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Tribolium castaneum
TI:7070 None
 
B3RJT3_TRIAD
CTD»
0.0
TRIADDRAFT_52668 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Trichoplax adhaerens
TI:10228 None
 
A0A3B6APS6_WHEAT
EnsemblPlants»
0.0
LOC123186952 Protein AAR2 homolog Triticum aestivum
TI:4565 None
   
A0A3B6BZ10_WHEAT
EnsemblPlants»
0.0
LOC123043100 Protein AAR2 homolog Triticum aestivum
TI:4565 None
   
W5C3F8_WHEAT
EnsemblPlants»
0.0
LOC123050995 Uncharacterized protein Triticum aestivum
TI:4565 None
   
D7TST3_VITVI
neXtProt»
0.0
VIT_14s0006g01740 Protein AAR2-like Vitis vinifera
TI:29760 None
 
A0A8J0PY72_XENLA
Xenbase»
0.0
aar2.L Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Xenopus laevis
TI:8355 None
   
F6YMW0_XENTR
Xenbase»
0.0
aar2 Protein AAR2 homolog
(AAR2 splicing factor homolog)		 Xenopus tropicalis
TI:8364 None
   
Q6CI47_YARLI
TubercuList»
0.0
YALI0_A01782g YALI0A01782p Yarrowia lipolytica
TI:4952 None
 
A0A804MIQ5_MAIZE
EnsemblPlants»
0.0
LOC100283264 AAR2 protein family Zea mays
TI:4577 None 		     
A0A0K9PIX9_ZOSMR
euHCVdb»
0.0
ZOSMA_226G00110 AAR2 protein family Zostera marina
TI:29655 None