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Aliases for ISY1 Gene

Aliases for ISY1 Gene

  • ISY1 Splicing Factor Homolog (S. Cerevisiae) 2 3
  • Functional Spliceosome-Associated Protein 33 2 3
  • KIAA1160 4 6
  • Pre-MRNA-Splicing Factor ISY1 Homolog 3
  • FSAP33 3

External Ids for ISY1 Gene

Summaries for ISY1 Gene

GeneCards Summary for ISY1 Gene

ISY1 (ISY1 Splicing Factor Homolog (S. Cerevisiae)) is a Protein Coding gene. Among its related pathways are Spliceosome. An important paralog of this gene is ISY1-RAB43.

UniProtKB/Swiss-Prot for ISY1 Gene

  • May play a role in pre-mRNA splicing.

No data available for Entrez Gene Summary , Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for ISY1 Gene

Genomics for ISY1 Gene

Genomic Location for ISY1 Gene

129,127,415 bp from pter
129,161,293 bp from pter
33,879 bases
Minus strand

Genomic View for ISY1 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for ISY1 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for ISY1 Gene

Regulatory Elements for ISY1 Gene

Proteins for ISY1 Gene

  • Protein details for ISY1 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Pre-mRNA-splicing factor ISY1 homolog
    Protein Accession:
    Secondary Accessions:
    • Q96IL2
    • Q9BT05

    Protein attributes for ISY1 Gene

    285 amino acids
    Molecular mass:
    32992 Da
    Quaternary structure:
    • Identified in the spliceosome C complex. Component of the XAB2 complex, a multimeric protein complex composed of XAB2, PRPF19, AQR, ZNF830, ISY1, and PPIE.
    • Sequence=BAA86474.1; Type=Erroneous initiation; Note=Translation N-terminally shortened.; Evidence={ECO:0000305};

    Alternative splice isoforms for ISY1 Gene


neXtProt entry for ISY1 Gene

Proteomics data for ISY1 Gene at MOPED

Post-translational modifications for ISY1 Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for ISY1 Gene

No data available for DME Specific Peptides for ISY1 Gene

Domains for ISY1 Gene

Protein Domains for ISY1 Gene



  • Belongs to the ISY1 family.:
    • Q9ULR0
genes like me logo Genes that share domains with ISY1: view

No data available for Gene Families for ISY1 Gene

Function for ISY1 Gene

Molecular function for ISY1 Gene

UniProtKB/Swiss-Prot Function: May play a role in pre-mRNA splicing.

Gene Ontology (GO) - Molecular Function for ISY1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005515 protein binding IPI 22365833
GO:0044822 poly(A) RNA binding IDA 22658674
genes like me logo Genes that share ontologies with ISY1: view

Phenotypes for ISY1 Gene

genes like me logo Genes that share phenotypes with ISY1: view

miRNA for ISY1 Gene

miRTarBase miRNAs that target ISY1

No data available for Enzyme Numbers (IUBMB) , Animal Models , Transcription Factor Targeting and HOMER Transcription for ISY1 Gene

Localization for ISY1 Gene

Subcellular locations from UniProtKB/Swiss-Prot for ISY1 Gene

Subcellular locations from

Jensen Localization Image for ISY1 Gene COMPARTMENTS Subcellular localization image for ISY1 gene
Compartment Confidence
nucleus 5
cytosol 2
mitochondrion 1

Gene Ontology (GO) - Cellular Components for ISY1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0071013 catalytic step 2 spliceosome IDA 11991638
genes like me logo Genes that share ontologies with ISY1: view

Pathways for ISY1 Gene

SuperPathways for ISY1 Gene

Superpath Contained pathways
1 Spliceosome
genes like me logo Genes that share pathways with ISY1: view

Pathways by source for ISY1 Gene

1 KEGG pathway for ISY1 Gene

Gene Ontology (GO) - Biological Process for ISY1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000398 mRNA splicing, via spliceosome IC 11991638
genes like me logo Genes that share ontologies with ISY1: view

Transcripts for ISY1 Gene

Unigene Clusters for ISY1 Gene

ISY1 splicing factor homolog (S. cerevisiae):
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for ISY1 Gene

No ASD Table

Relevant External Links for ISY1 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for ISY1 Gene

mRNA expression in normal human tissues for ISY1 Gene

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, MOPED, and MaxQB for ISY1 Gene

SOURCE GeneReport for Unigene cluster for ISY1 Gene Hs.512661

genes like me logo Genes that share expressions with ISY1: view

Orthologs for ISY1 Gene

This gene was present in the common ancestor of animals and fungi.

Orthologs for ISY1 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia ISY1 36
  • 99.67 (n)
  • 99.67 (a)
(Bos Taurus)
Mammalia ISY1 37
  • 95 (a)
(Canis familiaris)
Mammalia ISY1 37
  • 98 (a)
(Mus musculus)
Mammalia Isy1 37
  • 98 (a)
(Monodelphis domestica)
Mammalia -- 37
  • 91 (a)
(Ornithorhynchus anatinus)
Mammalia -- 37
  • 76 (a)
(Gallus gallus)
Aves -- 37
  • 78 (a)
(Anolis carolinensis)
Reptilia -- 37
  • 88 (a)
African clawed frog
(Xenopus laevis)
Amphibia Xl.19464 36
tropical clawed frog
(Silurana tropicalis)
Amphibia MGC76019 36
(Danio rerio)
Actinopterygii rab43 37
  • 81 (a)
fruit fly
(Drosophila melanogaster)
Insecta CG9667 37
  • 60 (a)
(Caenorhabditis elegans)
Secernentea F53B7.3 37
  • 49 (a)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes ISY1 37
  • 30 (a)
sea squirt
(Ciona intestinalis)
Ascidiacea Cin.2201 36
sea squirt
(Ciona savignyi)
Ascidiacea -- 37
  • 61 (a)
Species with no ortholog for ISY1:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rat (Rattus norvegicus)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)

Evolution for ISY1 Gene

Gene Tree for ISY1 (if available)
Gene Tree for ISY1 (if available)

Paralogs for ISY1 Gene

Paralogs for ISY1 Gene

Selected SIMAP similar genes for ISY1 Gene using alignment to 4 proteins:

genes like me logo Genes that share paralogs with ISY1: view

Variants for ISY1 Gene

Structural Variations from Database of Genomic Variants (DGV) for ISY1 Gene

Variant ID Type Subtype PubMed ID
dgv5251n71 CNV Loss 21882294
dgv5252n71 CNV Loss 21882294
nsv877471 CNV Loss 21882294
dgv5253n71 CNV Gain+Loss 21882294
esv2725900 CNV Deletion 23290073

Relevant External Links for ISY1 Gene

HapMap Linkage Disequilibrium report

No data available for Sequence variations from dbSNP and Humsavar for ISY1 Gene

Disorders for ISY1 Gene

No disorders were found for ISY1 Gene.

No data available for UniProtKB/Swiss-Prot for ISY1 Gene

Publications for ISY1 Gene

  1. The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). (PMID: 15489334) Gerhard D.S. … Malek J. (Genome Res. 2004) 3 4
  2. The Isy1p component of the NineTeen complex interacts with the ATPase Prp16p to regulate the fidelity of pre-mRNA splicing. (PMID: 16103217) Villa T. … Guthrie C. (Genes Dev. 2005) 2 3
  3. Characterization of cDNA clones selected by the GeneMark analysis from size-fractionated cDNA libraries from human brain. (PMID: 10574461) Hirosawa M. … Ohara O. (DNA Res. 1999) 3 4
  4. Purification and characterization of native spliceosomes suitable for three-dimensional structural analysis. (PMID: 11991638) Jurica M.S. … Moore M.J. (RNA 2002) 3 4
  5. Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences. (PMID: 12477932) Strausberg R.L. … Marra M.A. (Proc. Natl. Acad. Sci. U.S.A. 2002) 3

Products for ISY1 Gene

Sources for ISY1 Gene

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