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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:LRRN2-KCNMA1 (FusionGDB2 ID:50119)

Fusion Gene Summary for LRRN2-KCNMA1

check button Fusion gene summary
Fusion gene informationFusion gene name: LRRN2-KCNMA1
Fusion gene ID: 50119
HgeneTgene
Gene symbol

LRRN2

KCNMA1

Gene ID

10446

3778

Gene nameleucine rich repeat neuronal 2potassium calcium-activated channel subfamily M alpha 1
SynonymsFIGLER7|GAC1|LRANK1|LRRN5BKTM|CADEDS|IEG16|KCa1.1|LIWAS|MaxiK|PNKD3|SAKCA|SLO|SLO-ALPHA|SLO1|bA205K10.1|hSlo|mSLO1
Cytomap

1q32.1

10q22.3

Type of geneprotein-codingprotein-coding
Descriptionleucine-rich repeat neuronal protein 2fibronectin type III, immunoglobulin and leucine rich repeat domain 7glioma amplified on chromosome 1 proteinleucine rich and ankyrin repeats 1leucine rich repeat neuronal 5leucine-rich repeat neuronal protein 5calcium-activated potassium channel subunit alpha-1uncharacterized proteinBK channel alpha subunitBKCA alpha subunitbig potassium channel alpha subunitcalcium-activated potassium channel, subfamily M subunit alpha-1k(VCA)alphamaxi-K channel HSLOpo
Modification date2020031320200315
UniProtAcc

O75325

Q12791

Ensembl transtripts involved in fusion geneENST00000367176, ENST00000367177, 
ENST00000496057, ENST00000367175, 
ENST00000286627, ENST00000286628, 
ENST00000354353, ENST00000372440, 
ENST00000372443, ENST00000404771, 
ENST00000404857, ENST00000406533, 
ENST00000484507, ENST00000480683, 
ENST00000481070, 
Fusion gene scores* DoF score5 X 2 X 2=2018 X 17 X 8=2448
# samples 721
** MAII scorelog2(7/20*10)=1.8073549220576
effective Gene in Pan-Cancer Fusion Genes (eGinPCFGs).
DoF>8 and MAII>0
log2(21/2448*10)=-3.54314232502653
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
Context

PubMed: LRRN2 [Title/Abstract] AND KCNMA1 [Title/Abstract] AND fusion [Title/Abstract]

Most frequent breakpointLRRN2(204654447)-KCNMA1(78839308), # 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
TgeneKCNMA1

GO:0001666

response to hypoxia

15528406

TgeneKCNMA1

GO:0006813

potassium ion transport

7573516|7877450|11245614|12388065|17706472|18458941

TgeneKCNMA1

GO:0006970

response to osmotic stress

10840032|12388065

TgeneKCNMA1

GO:0030007

cellular potassium ion homeostasis

11245614

TgeneKCNMA1

GO:0034465

response to carbon monoxide

15528406

TgeneKCNMA1

GO:0042391

regulation of membrane potential

7877450|7993625

TgeneKCNMA1

GO:0045794

negative regulation of cell volume

12388065

TgeneKCNMA1

GO:0051592

response to calcium ion

12388065|18458941

TgeneKCNMA1

GO:0060073

micturition

11641143

TgeneKCNMA1

GO:0060083

smooth muscle contraction involved in micturition

11641143


check buttonFusion gene breakpoints across LRRN2 (5'-gene)
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.

check buttonFusion gene breakpoints across KCNMA1 (3'-gene)
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.

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
ChimerDB4BRCATCGA-BH-A1FNLRRN2chr1

204654447

-KCNMA1chr10

78839308

-


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Fusion Gene ORF analysis for LRRN2-KCNMA1

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
5UTR-3CDSENST00000367176ENST00000286627LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367176ENST00000286628LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367176ENST00000354353LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367176ENST00000372440LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367176ENST00000372443LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367176ENST00000404771LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367176ENST00000404857LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367176ENST00000406533LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367177ENST00000286627LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367177ENST00000286628LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367177ENST00000354353LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367177ENST00000372440LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367177ENST00000372443LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367177ENST00000404771LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367177ENST00000404857LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000367177ENST00000406533LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000496057ENST00000286627LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000496057ENST00000286628LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000496057ENST00000354353LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000496057ENST00000372440LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000496057ENST00000372443LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000496057ENST00000404771LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000496057ENST00000404857LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-3CDSENST00000496057ENST00000406533LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-5UTRENST00000367176ENST00000484507LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-5UTRENST00000367177ENST00000484507LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-5UTRENST00000496057ENST00000484507LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-intronENST00000367176ENST00000480683LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-intronENST00000367176ENST00000481070LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-intronENST00000367177ENST00000480683LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-intronENST00000367177ENST00000481070LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-intronENST00000496057ENST00000480683LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
5UTR-intronENST00000496057ENST00000481070LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
intron-3CDSENST00000367175ENST00000286627LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
intron-3CDSENST00000367175ENST00000286628LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
intron-3CDSENST00000367175ENST00000354353LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
intron-3CDSENST00000367175ENST00000372440LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
intron-3CDSENST00000367175ENST00000372443LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
intron-3CDSENST00000367175ENST00000404771LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
intron-3CDSENST00000367175ENST00000404857LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
intron-3CDSENST00000367175ENST00000406533LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
intron-5UTRENST00000367175ENST00000484507LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
intron-intronENST00000367175ENST00000480683LRRN2chr1

204654447

-KCNMA1chr10

78839308

-
intron-intronENST00000367175ENST00000481070LRRN2chr1

204654447

-KCNMA1chr10

78839308

-

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 LRRN2-KCNMA1


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)

check buttonDistribution of 44 human genomic features loci across 20kb length fusion breakpoint regions. We integrated a total of 44 different types of human genomic feature loci information across five big categories including virus integration sites, repeats, structural variants, chromatin states, and gene expression regulation. More details are in help page.

check buttonDistribution of 44 human genomic features loci across 20kb length fusion breakpoint regions that are ovelapped with the top 1% feature importance score regions. More details are in help page.

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Fusion Protein Features for LRRN2-KCNMA1


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/:204654447/:78839308)
- 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
LRRN2

O75325

KCNMA1

Q12791

FUNCTION: Potassium channel activated by both membrane depolarization or increase in cytosolic Ca(2+) that mediates export of K(+) (PubMed:29330545, PubMed:31152168). It is also activated by the concentration of cytosolic Mg(2+). Its activation dampens the excitatory events that elevate the cytosolic Ca(2+) concentration and/or depolarize the cell membrane. It therefore contributes to repolarization of the membrane potential. Plays a key role in controlling excitability in a number of systems, such as regulation of the contraction of smooth muscle, the tuning of hair cells in the cochlea, regulation of transmitter release, and innate immunity. In smooth muscles, its activation by high level of Ca(2+), caused by ryanodine receptors in the sarcoplasmic reticulum, regulates the membrane potential. In cochlea cells, its number and kinetic properties partly determine the characteristic frequency of each hair cell and thereby helps to establish a tonotopic map. Kinetics of KCNMA1 channels are determined by alternative splicing, phosphorylation status and its combination with modulating beta subunits. Highly sensitive to both iberiotoxin (IbTx) and charybdotoxin (CTX). {ECO:0000269|PubMed:29330545, ECO:0000269|PubMed:31152168}.

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 LRRN2-KCNMA1


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 LRRN2-KCNMA1


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 LRRN2-KCNMA1


check button Drugs targeting genes involved in this fusion gene.
(DrugBank Version 5.1.8 2021-05-08)
PartnerGeneUniProtAccDrugBank IDDrug nameDrug activityDrug typeDrug status

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Related Diseases for LRRN2-KCNMA1


check button Diseases associated with fusion partners.
(DisGeNet 4.0)
PartnerGeneDisease IDDisease name# pubmedsSource