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Center for Computational Systems Medicine
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Fusion Gene Summary

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Fusion Gene ORF analysis

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Fusion Genomic Features

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Fusion Protein Features

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Fusion Gene Sequence

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Fusion Gene PPI analysis

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Related Drugs

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Related Diseases

Fusion gene:KCNA1-GALNT3 (FusionGDB2 ID:HG3736TG2591)

Fusion Gene Summary for KCNA1-GALNT3

check button Fusion gene summary
Fusion gene informationFusion gene name: KCNA1-GALNT3
Fusion gene ID: hg3736tg2591
HgeneTgene
Gene symbol

KCNA1

GALNT3

Gene ID

3736

2591

Gene namepotassium voltage-gated channel subfamily A member 1polypeptide N-acetylgalactosaminyltransferase 3
SynonymsAEMK|EA1|HBK1|HUK1|KV1.1|MBK1|MK1|RBK1GalNAc-T3|HFTC|HFTC1|HHS
Cytomap('KCNA1')('GALNT3')

12p13.32

2q24.3

Type of geneprotein-codingprotein-coding
Descriptionpotassium voltage-gated channel subfamily A member 1potassium channel, voltage gated shaker related subfamily A, member 1potassium voltage-gated channel, shaker-related subfamily, member 1 (episodic ataxia with myokymia)voltage-gated K(+) channel HuKIpolypeptide N-acetylgalactosaminyltransferase 3GalNAc transferase 3UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase 3UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase 3 (GalNAc-T3)polypeptide GalNAc transferase 3
Modification date2020031320200313
UniProtAcc

Q09470

Q14435

Ensembl transtripts involved in fusion geneENST00000382545, ENST00000543874, 
Fusion gene scores* DoF score2 X 2 X 1=43 X 3 X 2=18
# samples 23
** MAII scorelog2(2/4*10)=2.32192809488736log2(3/18*10)=0.736965594166206
effective Gene in Pan-Cancer Fusion Genes (eGinPCFGs).
DoF>8 and MAII>0
Context

PubMed: KCNA1 [Title/Abstract] AND GALNT3 [Title/Abstract] AND fusion [Title/Abstract]

Most frequent breakpointKCNA1(5031418)-GALNT3(166604685), # samples:1
Anticipated loss of major functional domain due to fusion event.
* DoF score (Degree of Frequency) = # partners X # break points X # cancer types
** MAII score (Major Active Isofusion Index) = log2(# samples/DoF score*10)

check button Gene ontology of each fusion partner gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
TgeneGALNT3

GO:0018242

protein O-linked glycosylation via serine

9295285

TgeneGALNT3

GO:0018243

protein O-linked glycosylation via threonine

9295285|16638743



check button Fusion gene information from two resources (ChiTars 5.0 and ChimerDB 4.0)
* All genome coordinats were lifted-over on hg19.
* Click on the break point to see the gene structure around the break point region using the UCSC Genome Browser.
SourceDiseaseSampleHgeneHchrHbpHstrandTgeneTchrTbpTstrand
ChiTaRS5.0N/AAX260576KCNA1chr12

5031418

+GALNT3chr2

166604685

-


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Fusion Gene ORF analysis for KCNA1-GALNT3

check button Open reading frame (ORF) analsis of fusion genes based on Ensembl gene isoform structure.
* Click on the break point to see the gene structure around the break point region using the UCSC Genome Browser.
ORFHenstTenstHgeneHchrHbpHstrandTgeneTchrTbpTstrand
intron-3UTRENST00000382545ENST00000392701KCNA1chr12

5031418

+GALNT3chr2

166604685

-
intron-3UTRENST00000382545ENST00000409882KCNA1chr12

5031418

+GALNT3chr2

166604685

-
intron-3UTRENST00000543874ENST00000392701KCNA1chr12

5031418

+GALNT3chr2

166604685

-
intron-3UTRENST00000543874ENST00000409882KCNA1chr12

5031418

+GALNT3chr2

166604685

-

check buttonORFfinder result based on the fusion transcript sequence of in-frame fusion genes.
HenstTenstHgeneHchrHbpHstrandTgeneTchrTbpTstrandSeq length
(transcript)
BP loci
(transcript)
Predicted start
(transcript)
Predicted stop
(transcript)
Seq length
(amino acids)

check buttonDeepORF prediction of the coding potential based on the fusion transcript sequence of in-frame fusion genes. DeepORF is a coding potential classifier based on convolutional neural network by comparing the real Ribo-seq data. If the no-coding score < 0.5 and coding score > 0.5, then the in-frame fusion transcript is predicted as being likely translated.
HenstTenstHgeneHchrHbpHstrandTgeneTchrTbpTstrandNo-coding scoreCoding score

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Fusion Genomic Features for KCNA1-GALNT3


check buttonFusionAI prediction of the potential fusion gene breakpoint based on the pre-mature RNA sequence context (+/- 5kb of individual partner genes, total 20kb length sequence). FusionAI is a fusion gene breakpoint classifier based on convolutional neural network by comparing the fusion positive and negative sequence context of ~ 20K fusion gene data. From here, we can have the relative potentency of the 20K genomic sequence how individual sequnce will be likely used as the gene fusion breakpoints.
HgeneHchrHbpHstrandTgeneTchrTbpTstrand1-pp (fusion gene breakpoint)


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Fusion Protein Features for KCNA1-GALNT3


check button Four levels of functional features of fusion genes
Go to FGviewer search page for the most frequent breakpoint (https://ccsmweb.uth.edu/FGviewer/:5031418/:166604685)
- FGviewer provides the online visualization of the retention search of the protein functional features across DNA, RNA, protein, and pathological levels.
- How to search
1. Put your fusion gene symbol.
2. Press the tab key until there will be shown the breakpoint information filled.
4. Go down and press 'Search' tab twice.
4. Go down to have the hyperlink of the search result.
5. Click the hyperlink.
6. See the FGviewer result for your fusion gene.
FGviewer

check buttonMain function of each fusion partner protein. (from UniProt)
HgeneTgene
KCNA1

Q09470

GALNT3

Q14435

FUNCTION: Voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes, primarily in the brain and the central nervous system, but also in the kidney (PubMed:19903818). Contributes to the regulation of the membrane potential and nerve signaling, and prevents neuronal hyperexcitability (PubMed:17156368). Forms tetrameric potassium-selective channels through which potassium ions pass in accordance with their electrochemical gradient. The channel alternates between opened and closed conformations in response to the voltage difference across the membrane (PubMed:19912772). Can form functional homotetrameric channels and heterotetrameric channels that contain variable proportions of KCNA1, KCNA2, KCNA4, KCNA5, KCNA6, KCNA7, and possibly other family members as well; channel properties depend on the type of alpha subunits that are part of the channel (PubMed:12077175, PubMed:17156368). Channel properties are modulated by cytoplasmic beta subunits that regulate the subcellular location of the alpha subunits and promote rapid inactivation of delayed rectifier potassium channels (PubMed:12077175, PubMed:17156368). In vivo, membranes probably contain a mixture of heteromeric potassium channel complexes, making it difficult to assign currents observed in intact tissues to any particular potassium channel family member. Homotetrameric KCNA1 forms a delayed-rectifier potassium channel that opens in response to membrane depolarization, followed by slow spontaneous channel closure (PubMed:19912772, PubMed:19968958, PubMed:19307729, PubMed:19903818). In contrast, a heterotetrameric channel formed by KCNA1 and KCNA4 shows rapid inactivation (PubMed:17156368). Regulates neuronal excitability in hippocampus, especially in mossy fibers and medial perforant path axons, preventing neuronal hyperexcitability. Response to toxins that are selective for KCNA1, respectively for KCNA2, suggests that heteromeric potassium channels composed of both KCNA1 and KCNA2 play a role in pacemaking and regulate the output of deep cerebellar nuclear neurons (By similarity). May function as down-stream effector for G protein-coupled receptors and inhibit GABAergic inputs to basolateral amygdala neurons (By similarity). May contribute to the regulation of neurotransmitter release, such as gamma-aminobutyric acid (GABA) release (By similarity). Plays a role in regulating the generation of action potentials and preventing hyperexcitability in myelinated axons of the vagus nerve, and thereby contributes to the regulation of heart contraction (By similarity). Required for normal neuromuscular responses (PubMed:11026449, PubMed:17136396). Regulates the frequency of neuronal action potential firing in response to mechanical stimuli, and plays a role in the perception of pain caused by mechanical stimuli, but does not play a role in the perception of pain due to heat stimuli (By similarity). Required for normal responses to auditory stimuli and precise location of sound sources, but not for sound perception (By similarity). The use of toxins that block specific channels suggest that it contributes to the regulation of the axonal release of the neurotransmitter dopamine (By similarity). Required for normal postnatal brain development and normal proliferation of neuronal precursor cells in the brain (By similarity). Plays a role in the reabsorption of Mg(2+) in the distal convoluted tubules in the kidney and in magnesium ion homeostasis, probably via its effect on the membrane potential (PubMed:23903368, PubMed:19307729). {ECO:0000250|UniProtKB:P10499, ECO:0000269|PubMed:11026449, ECO:0000269|PubMed:12077175, ECO:0000269|PubMed:15837928, ECO:0000269|PubMed:17136396, ECO:0000269|PubMed:17156368, ECO:0000269|PubMed:19307729, ECO:0000269|PubMed:19903818, ECO:0000269|PubMed:19912772, ECO:0000269|PubMed:19968958, ECO:0000269|PubMed:21106501, ECO:0000269|PubMed:23903368}.FUNCTION: Catalyzes the initial reaction in O-linked oligosaccharide biosynthesis, the transfer of an N-acetyl-D-galactosamine residue to a serine or threonine residue on the protein receptor. Has activity toward HIV envelope glycoprotein gp120, EA2, Muc2 and Muc5. Probably glycosylates fibronectin in vivo. Glycosylates FGF23. Plays a central role in phosphate homeostasis. {ECO:0000269|PubMed:16638743, ECO:0000269|PubMed:9295285}.

check buttonRetention analysis result of each fusion partner protein across 39 protein features of UniProt such as six molecule processing features, 13 region features, four site features, six amino acid modification features, two natural variation features, five experimental info features, and 3 secondary structure features. Here, because of limited space for viewing, we only show the protein feature retention information belong to the 13 regional features. All retention annotation result can be downloaded at

download page


* Minus value of BPloci means that the break pointn is located before the CDS.
- In-frame and retained protein feature among the 13 regional features.
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenProtein featureProtein feature note

- In-frame and not-retained protein feature among the 13 regional features.
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenProtein featureProtein feature note


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Fusion Gene Sequence for KCNA1-GALNT3


check button For in-frame fusion transcripts, we provide the fusion transcript sequences and fusion amino acid sequences. To have fusion amino acid sequence, we ran ORFfinder and chose the longest ORF among the all predicted ones.

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Fusion Gene PPI Analysis for KCNA1-GALNT3


check button Go to ChiPPI (Chimeric Protein-Protein interactions) to see the chimeric PPI interaction in

ChiPPI page.


check button Protein-protein interactors with each fusion partner protein in wild-type (BIOGRID-3.4.160)
HgeneHgene's interactorsTgeneTgene's interactors


check button - Retained PPIs in in-frame fusion.
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenStill interaction with


check button - Lost PPIs in in-frame fusion.
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenInteraction lost with


check button - Retained PPIs, but lost function due to frame-shift fusion.
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenInteraction lost with


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Related Drugs for KCNA1-GALNT3


check button Drugs targeting genes involved in this fusion gene.
(DrugBank Version 5.1.8 2021-05-08)
PartnerGeneUniProtAccDrugBank IDDrug nameDrug activityDrug typeDrug status
HgeneKCNA1Q09470DB00321AmitriptylineInhibitorSmall moleculeApproved
HgeneKCNA1Q09470DB01189DesfluraneInducerSmall moleculeApproved
HgeneKCNA1Q09470DB06637DalfampridineAntagonistSmall moleculeApproved
HgeneKCNA1Q09470DB11640AmifampridineBlockerSmall moleculeApproved|Investigational
HgeneKCNA1Q09470DB01028MethoxyfluraneInducerSmall moleculeApproved|Investigational|Vet_approved
HgeneKCNA1Q09470DB00753IsofluraneInducerSmall moleculeApproved|Vet_approved

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Related Diseases for KCNA1-GALNT3


check button Diseases associated with fusion partners.
(DisGeNet 4.0)
PartnerGeneDisease IDDisease name# pubmedsSource
HgeneKCNA1C1719788Episodic ataxia type 117CTD_human;GENOMICS_ENGLAND;UNIPROT
HgeneKCNA1C0393706Early infantile epileptic encephalopathy with suppression bursts1ORPHANET
HgeneKCNA1C0684219Myokymia1GENOMICS_ENGLAND
HgeneKCNA1C1720189Episodic Ataxia1GENOMICS_ENGLAND
HgeneKCNA1C1834559Continuous Muscle Fiber Activity, Hereditary1ORPHANET
HgeneKCNA1C1868682Paroxysmal kinesigenic choreoathetosis1ORPHANET
TgeneC4692564TUMORAL CALCINOSIS, HYPERPHOSPHATEMIC, FAMILIAL, 13GENOMICS_ENGLAND;ORPHANET
TgeneC1876187TUMORAL CALCINOSIS, HYPERPHOSPHATEMIC, FAMILIAL2CTD_human;ORPHANET
TgeneC0006663Calcinosis1CTD_human
TgeneC0033578Prostatic Neoplasms1CTD_human
TgeneC0085681Hyperphosphatemia (disorder)1CTD_human
TgeneC0263628Tumoral calcinosis1CTD_human
TgeneC0376358Malignant neoplasm of prostate1CTD_human
TgeneC0521174Microcalcification1CTD_human