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Aliases for CYTH3 Gene

Aliases for CYTH3 Gene

  • Cytohesin 3 2 3
  • PSCD3 3 4 6
  • ARNO3 3 4 6
  • GRP1 3 4 6
  • PH, SEC7 And Coiled-Coil Domain-Containing Protein 3 3 4
  • Pleckstrin Homology, Sec7 And Coiled-Coil Domains 3 2 3
  • General Receptor Of Phosphoinositides 1 3 4
  • ARF Nucleotide-Binding Site Opener 3 3 4
  • Protein ARNO3 4
  • Cytohesin-3 3

External Ids for CYTH3 Gene

Previous HGNC Symbols for CYTH3 Gene

  • PSCD3

Previous GeneCards Identifiers for CYTH3 Gene

  • GC07M006168
  • GC07M006073

Summaries for CYTH3 Gene

Entrez Gene Summary for CYTH3 Gene

  • This gene encodes a member of the PSCD (pleckstrin homology, Sec7 and coiled-coil domains) family. PSCD family members have identical structural organization that consists of an N-terminal coiled-coil motif, a central Sec7 domain, and a C-terminal pleckstrin homology (PH) domain. The coiled-coil motif is involved in homodimerization, the Sec7 domain contains guanine-nucleotide exchange protein (GEP) activity, and the PH domain interacts with phospholipids and is responsible for association of PSCDs with membranes. Members of this family appear to mediate the regulation of protein sorting and membrane trafficking. This encoded protein is involved in the control of Golgi structure and function, and it may have a physiological role in regulating ADP-ribosylation factor protein 6 (ARF) functions, in addition to acting on ARF1. [provided by RefSeq, Jul 2008]

GeneCards Summary for CYTH3 Gene

CYTH3 (Cytohesin 3) is a Protein Coding gene. Among its related pathways are Class I PI3K signaling events and Development Angiotensin activation of ERK. GO annotations related to this gene include 1-phosphatidylinositol binding and ARF guanyl-nucleotide exchange factor activity. An important paralog of this gene is ENSG00000268465.

UniProtKB/Swiss-Prot for CYTH3 Gene

  • Promotes guanine-nucleotide exchange on ARF1 and ARF6. Promotes the activation of ARF factors through replacement of GDP with GTP.

Gene Wiki entry for CYTH3 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for CYTH3 Gene

Genomics for CYTH3 Gene

Regulatory Elements for CYTH3 Gene

Epigenetics Products

  • DNA Methylation CpG Assay Predesigned for Pyrosequencing in human,mouse,rat

Genomic Location for CYTH3 Gene

6,161,776 bp from pter
6,272,644 bp from pter
110,869 bases
Minus strand

Genomic View for CYTH3 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for CYTH3 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for CYTH3 Gene

Proteins for CYTH3 Gene

  • Protein details for CYTH3 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Protein Accession:
    Secondary Accessions:
    • A4D2N8

    Protein attributes for CYTH3 Gene

    400 amino acids
    Molecular mass:
    46349 Da
    Quaternary structure:
    • Interacts with GRASP (By similarity). Interacts with ARF6.

    Three dimensional structures from OCA and Proteopedia for CYTH3 Gene

    Alternative splice isoforms for CYTH3 Gene


neXtProt entry for CYTH3 Gene

Proteomics data for CYTH3 Gene at MOPED

Post-translational modifications for CYTH3 Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for CYTH3 Gene

ENSEMBL proteins:
REFSEQ proteins:

Antibody Products

No data available for DME Specific Peptides for CYTH3 Gene

Domains for CYTH3 Gene

Gene Families for CYTH3 Gene

Protein Domains for CYTH3 Gene

Suggested Antigen Peptide Sequences for CYTH3 Gene

Graphical View of Domain Structure for InterPro Entry



  • Binds via its PH domain to the inositol head group of phosphatidylinositol 3,4,5-trisphosphate
  • Binds via its PH domain to the inositol head group of phosphatidylinositol 3,4,5-trisphosphate
  • Autoinhibited by its C-terminal basic region
  • Contains 1 PH domain.
  • Contains 1 SEC7 domain.
genes like me logo Genes that share domains with CYTH3: view

Function for CYTH3 Gene

Molecular function for CYTH3 Gene

UniProtKB/Swiss-Prot Function:
Promotes guanine-nucleotide exchange on ARF1 and ARF6. Promotes the activation of ARF factors through replacement of GDP with GTP.

Gene Ontology (GO) - Molecular Function for CYTH3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005086 ARF guanyl-nucleotide exchange factor activity IDA 23940353
GO:0005515 protein binding IPI 16189514
GO:0005547 phosphatidylinositol-3,4,5-trisphosphate binding IDA 23940353
genes like me logo Genes that share ontologies with CYTH3: view

Phenotypes for CYTH3 Gene

GenomeRNAi human phenotypes for CYTH3:
genes like me logo Genes that share phenotypes with CYTH3: view

Animal Model Products

CRISPR Products

miRNA for CYTH3 Gene

miRTarBase miRNAs that target CYTH3

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for CYTH3

In Situ Assay Products

Flow Cytometry Products

No data available for Enzyme Numbers (IUBMB) , Animal Models , Transcription Factor Targets and HOMER Transcription for CYTH3 Gene

Localization for CYTH3 Gene

Subcellular locations from UniProtKB/Swiss-Prot for CYTH3 Gene

Cytoplasm, cytosol. Cell membrane; Peripheral membrane protein. Note=Translocates from the cytosol to membranes enriched in phosphatidylinositol 3,4,5-trisphosphate.

Subcellular locations from

Jensen Localization Image for CYTH3 Gene COMPARTMENTS Subcellular localization image for CYTH3 gene
Compartment Confidence
plasma membrane 5
cytosol 3
nucleus 2
mitochondrion 1

Gene Ontology (GO) - Cellular Components for CYTH3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0001726 ruffle IEA --
GO:0005737 cytoplasm --
GO:0005802 NOT trans-Golgi network IBA --
GO:0005829 cytosol IDA 9742223
GO:0005886 plasma membrane IDA 17398095
genes like me logo Genes that share ontologies with CYTH3: view

Pathways for CYTH3 Gene

genes like me logo Genes that share pathways with CYTH3: view

Pathways by source for CYTH3 Gene

1 GeneGo (Thomson Reuters) pathway for CYTH3 Gene

Gene Ontology (GO) - Biological Process for CYTH3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0016192 NOT vesicle-mediated transport IBA --
GO:0030155 regulation of cell adhesion IBA --
GO:0032012 regulation of ARF protein signal transduction --
GO:0043547 positive regulation of GTPase activity IEA --
GO:0045785 positive regulation of cell adhesion IEA --
genes like me logo Genes that share ontologies with CYTH3: view

Drugs for CYTH3 Gene

(2) Drugbank Compounds for CYTH3 Gene

Compound Status Synonyms Cas Number PubChem ID Type Actions PubMed IDs
Inositol 1,3,4,5-Tetrakisphosphate
13830686 Target experimental
9548598 Target experimental

(1) HMDB Compounds for CYTH3 Gene

Compound Synonyms Cas Number PubMed IDs
Guanosine triphosphate
  • 5'-GTP

(10) Novoseek inferred chemical compound relationships for CYTH3 Gene

Compound -log(P) Hits PubMed IDs
grp-1 99.3 52
phosphatidylinositol-3,4,5-trisphosphate 88.2 4
nitrilotriacetic acid 74.8 1
phosphoinositide 57.9 1
phosphatidylinositol 53.6 2
genes like me logo Genes that share compounds with CYTH3: view

Transcripts for CYTH3 Gene

Unigene Clusters for CYTH3 Gene

Cytohesin 3:
Representative Sequences:

CRISPR Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for CYTH3

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for CYTH3 Gene

ExUns: 1 ^ 2 ^ 3 ^ 4 ^ 5 ^ 6 ^ 7 ^ 8 ^ 9a · 9b · 9c · 9d ^ 10a · 10b · 10c ^ 11a · 11b · 11c ^ 12 ^ 13 ^ 14 ^ 15 ^ 16a · 16b ^ 17a · 17b
SP1: - - - - - -
SP2: - - - - - - - - - -
SP3: -
SP4: - - -
SP5: - -
SP6: - -
SP7: -

Relevant External Links for CYTH3 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for CYTH3 Gene

mRNA expression in normal human tissues for CYTH3 Gene

Protein differential expression in normal tissues for CYTH3 Gene

This gene is overexpressed in Frontal cortex (30.6), Placenta (15.3), and Pancreas (10.2).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, MOPED, and MaxQB for CYTH3 Gene

SOURCE GeneReport for Unigene cluster for CYTH3 Gene Hs.487479

mRNA Expression by UniProt/SwissProt for CYTH3 Gene

Tissue specificity: Almost absent from liver, thymus and peripheral blood lymphocytes
genes like me logo Genes that share expressions with CYTH3: view

Expression partners for CYTH3 Gene

* - Elite partner

Primer Products

In Situ Assay Products

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery and mRNA differential expression in normal tissues for CYTH3 Gene

Orthologs for CYTH3 Gene

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

Orthologs for CYTH3 Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia LOC618488 35
  • 90.28 (n)
  • 97.92 (a)
CYTH3 36
  • 88 (a)
(Canis familiaris)
Mammalia CYTH3 35
  • 88.79 (n)
  • 98.58 (a)
CYTH3 36
  • 99 (a)
(Mus musculus)
Mammalia Cyth3 35
  • 88.05 (n)
  • 99 (a)
Cyth3 16
Cyth3 36
  • 99 (a)
(Pan troglodytes)
Mammalia CYTH3 35
  • 99.67 (n)
  • 100 (a)
CYTH3 36
  • 100 (a)
(Rattus norvegicus)
Mammalia Cyth3 35
  • 86.97 (n)
  • 99 (a)
(Monodelphis domestica)
Mammalia CYTH3 36
  • 96 (a)
(Ornithorhynchus anatinus)
Mammalia CYTH3 36
  • 95 (a)
(Gallus gallus)
Aves CYTH3 35
  • 79.62 (n)
  • 97.59 (a)
CYTH3 36
  • 94 (a)
(Anolis carolinensis)
Reptilia CYTH3 36
  • 95 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia cyth3 35
  • 78.46 (n)
  • 96.78 (a)
(Danio rerio)
Actinopterygii LOC100537448 35
  • 78.46 (n)
  • 94.37 (a)
CYTH3 (1 of 3) 36
  • 91 (a)
CYTH3 (3 of 3) 36
  • 90 (a)
cyth3a 36
  • 90 (a)
fruit fly
(Drosophila melanogaster)
Insecta step 36
  • 35 (a)
(Caenorhabditis elegans)
Secernentea grp-1 35
  • 50.34 (n)
  • 44.35 (a)
grp-1 36
  • 40 (a)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes SEC7 36
  • 6 (a)
sea squirt
(Ciona savignyi)
Ascidiacea -- 36
  • 62 (a)
CSA.8851 36
  • 61 (a)
Species with no ortholog for CYTH3:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • 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)
  • 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 CYTH3 Gene

Gene Tree for CYTH3 (if available)
Gene Tree for CYTH3 (if available)

Paralogs for CYTH3 Gene

(9) SIMAP similar genes for CYTH3 Gene using alignment to 3 proteins:

genes like me logo Genes that share paralogs with CYTH3: view

Variants for CYTH3 Gene

Sequence variations from dbSNP and Humsavar for CYTH3 Gene

SNP ID Clin Chr 07 pos Sequence Context AA Info Type MAF
rs34013002 -- 6,236,383(-) AAAGT(-/A)AAAAA intron-variant
rs34054251 -- 6,178,599(-) TCTCA(A/G)GGTTT intron-variant
rs34073302 -- 6,264,178(-) CCTCC(A/G)CTTCC intron-variant
rs34007751 -- 6,182,536(-) GTAAG(-/C)ACTTT intron-variant
rs28854323 -- 6,176,397(+) GCTGA(A/G)AATAC intron-variant

Structural Variations from Database of Genomic Variants (DGV) for CYTH3 Gene

Variant ID Type Subtype PubMed ID
nsv436904 CNV Insertion 17901297
nsv7392 OTHER Inversion 18451855
esv1914954 OTHER Inversion 16254605
nsv522155 CNV Loss 19592680
dgv403n21 CNV Loss 19592680
nsv818475 CNV Loss 17921354
dgv7146n71 CNV Loss 21882294
nsv5629 CNV Loss 18451855
esv259693 OTHER Complex 20981092
esv8077 CNV Gain 19470904

Relevant External Links for CYTH3 Gene

HapMap Linkage Disequilibrium report

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for CYTH3 Gene

Disorders for CYTH3 Gene

(1) Novoseek inferred disease relationships for CYTH3 Gene

Disease -log(P) Hits PubMed IDs
tumors 0 3
genes like me logo Genes that share disorders with CYTH3: view

No data available for MalaCards , OMIM , UniProtKB/Swiss-Prot , University of Copenhagen DISEASES , Genatlas and External Links for CYTH3 Gene

Publications for CYTH3 Gene

  1. ARNO3, a Sec7-domain guanine nucleotide exchange factor for ADP ribosylation factor 1, is involved in the control of Golgi structure and function. (PMID: 9707577) Franco M. … Chavrier P. (Proc. Natl. Acad. Sci. U.S.A. 1998) 3 4 23
  2. Nerve growth factor- and epidermal growth factor-stimulated translocation of the ADP-ribosylation factor-exchange factor GRP1 to the plasma membrane of PC12 cells requires activation of phosphatidylinositol 3-kinase and the GRP1 pleckstrin homology domain. (PMID: 9742223) Venkateswarlu K. … Cullen P.J. (Biochem. J. 1998) 3 4 23
  3. The Arl4 family of small G proteins can recruit the cytohesin Arf6 exchange factors to the plasma membrane. (PMID: 17398095) Hofmann I. … Munro S. (Curr. Biol. 2007) 3 4 23
  4. Signaling complexes of the FERM domain-containing protein GRSP1 bound to ARF exchange factor GRP1. (PMID: 11445584) Klarlund J.K. … Czech M.P. (J. Biol. Chem. 2001) 3 23
  5. Similarities in function and gene structure of cytohesin-4 and cytohesin-1, guanine nucleotide-exchange proteins for ADP-ribosylation factors. (PMID: 10652308) Ogasawara M. … Vaughan M. (J. Biol. Chem. 2000) 3 4

Products for CYTH3 Gene

Sources for CYTH3 Gene

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