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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:GABBR2-GABBR2 (FusionGDB2 ID:32071)

Fusion Gene Summary for GABBR2-GABBR2

check button Fusion gene summary
Fusion gene informationFusion gene name: GABBR2-GABBR2
Fusion gene ID: 32071
HgeneTgene
Gene symbol

GABBR2

GABBR2

Gene ID

9568

9568

Gene namegamma-aminobutyric acid type B receptor subunit 2gamma-aminobutyric acid type B receptor subunit 2
SynonymsEIEE59|GABABR2|GPR51|GPRC3B|HG20|HRIHFB2099|NDPLHSEIEE59|GABABR2|GPR51|GPRC3B|HG20|HRIHFB2099|NDPLHS
Cytomap

9q22.33

9q22.33

Type of geneprotein-codingprotein-coding
Descriptiongamma-aminobutyric acid type B receptor subunit 2G-protein coupled receptor 51GABA-B receptor 2GABA-B receptor, R2 subunitGABA-B-R2GABA-BR2gamma-aminobutyric acid (GABA) B receptor, 2gamma-aminobutyric acid B receptor 2gb2gamma-aminobutyric acid type B receptor subunit 2G-protein coupled receptor 51GABA-B receptor 2GABA-B receptor, R2 subunitGABA-B-R2GABA-BR2gamma-aminobutyric acid (GABA) B receptor, 2gamma-aminobutyric acid B receptor 2gb2
Modification date2020031320200313
UniProtAcc

O75899

O75899

Ensembl transtripts involved in fusion geneENST00000259455, ENST00000477471, 
ENST00000259455, ENST00000477471, 
Fusion gene scores* DoF score5 X 5 X 3=758 X 8 X 5=320
# samples 58
** MAII scorelog2(5/75*10)=-0.584962500721156
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
log2(8/320*10)=-2
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
Context

PubMed: GABBR2 [Title/Abstract] AND GABBR2 [Title/Abstract] AND fusion [Title/Abstract]

Most frequent breakpointGABBR2(101052698)-GABBR2(101156518), # 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
HgeneGABBR2

GO:0007214

gamma-aminobutyric acid signaling pathway

9872316

TgeneGABBR2

GO:0007214

gamma-aminobutyric acid signaling pathway

9872316


check buttonFusion gene breakpoints across GABBR2 (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 GABBR2 (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
ChiTaRS5.0N/ABP311968GABBR2chr9

101052698

-GABBR2chr9

101156518

-


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Fusion Gene ORF analysis for GABBR2-GABBR2

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-3CDSENST00000259455ENST00000259455GABBR2chr9

101052698

-GABBR2chr9

101156518

-
intron-3CDSENST00000477471ENST00000259455GABBR2chr9

101052698

-GABBR2chr9

101156518

-
intron-intronENST00000259455ENST00000477471GABBR2chr9

101052698

-GABBR2chr9

101156518

-
intron-intronENST00000477471ENST00000477471GABBR2chr9

101052698

-GABBR2chr9

101156518

-

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 GABBR2-GABBR2


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 GABBR2-GABBR2


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/:101052698/:101156518)
- 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
GABBR2

O75899

GABBR2

O75899

FUNCTION: Component of a heterodimeric G-protein coupled receptor for GABA, formed by GABBR1 and GABBR2 (PubMed:9872316, PubMed:9872744, PubMed:15617512, PubMed:18165688, PubMed:22660477, PubMed:24305054). Within the heterodimeric GABA receptor, only GABBR1 seems to bind agonists, while GABBR2 mediates coupling to G proteins (PubMed:18165688). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase (PubMed:10075644, PubMed:10773016, PubMed:24305054). Signaling inhibits adenylate cyclase, stimulates phospholipase A2, activates potassium channels, inactivates voltage-dependent calcium-channels and modulates inositol phospholipid hydrolysis (PubMed:10075644, PubMed:9872744, PubMed:10906333, PubMed:10773016). Plays a critical role in the fine-tuning of inhibitory synaptic transmission (PubMed:9872744, PubMed:22660477). Pre-synaptic GABA receptor inhibits neurotransmitter release by down-regulating high-voltage activated calcium channels, whereas postsynaptic GABA receptor decreases neuronal excitability by activating a prominent inwardly rectifying potassium (Kir) conductance that underlies the late inhibitory postsynaptic potentials (PubMed:9872316, PubMed:10075644, PubMed:9872744, PubMed:22660477). Not only implicated in synaptic inhibition but also in hippocampal long-term potentiation, slow wave sleep, muscle relaxation and antinociception (Probable). {ECO:0000269|PubMed:10075644, ECO:0000269|PubMed:10328880, ECO:0000269|PubMed:15617512, ECO:0000269|PubMed:18165688, ECO:0000269|PubMed:22660477, ECO:0000269|PubMed:24305054, ECO:0000269|PubMed:9872316, ECO:0000269|PubMed:9872744, ECO:0000305}.FUNCTION: Component of a heterodimeric G-protein coupled receptor for GABA, formed by GABBR1 and GABBR2 (PubMed:9872316, PubMed:9872744, PubMed:15617512, PubMed:18165688, PubMed:22660477, PubMed:24305054). Within the heterodimeric GABA receptor, only GABBR1 seems to bind agonists, while GABBR2 mediates coupling to G proteins (PubMed:18165688). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase (PubMed:10075644, PubMed:10773016, PubMed:24305054). Signaling inhibits adenylate cyclase, stimulates phospholipase A2, activates potassium channels, inactivates voltage-dependent calcium-channels and modulates inositol phospholipid hydrolysis (PubMed:10075644, PubMed:9872744, PubMed:10906333, PubMed:10773016). Plays a critical role in the fine-tuning of inhibitory synaptic transmission (PubMed:9872744, PubMed:22660477). Pre-synaptic GABA receptor inhibits neurotransmitter release by down-regulating high-voltage activated calcium channels, whereas postsynaptic GABA receptor decreases neuronal excitability by activating a prominent inwardly rectifying potassium (Kir) conductance that underlies the late inhibitory postsynaptic potentials (PubMed:9872316, PubMed:10075644, PubMed:9872744, PubMed:22660477). Not only implicated in synaptic inhibition but also in hippocampal long-term potentiation, slow wave sleep, muscle relaxation and antinociception (Probable). {ECO:0000269|PubMed:10075644, ECO:0000269|PubMed:10328880, ECO:0000269|PubMed:15617512, ECO:0000269|PubMed:18165688, ECO:0000269|PubMed:22660477, ECO:0000269|PubMed:24305054, ECO:0000269|PubMed:9872316, ECO:0000269|PubMed:9872744, ECO:0000305}.

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 GABBR2-GABBR2


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 GABBR2-GABBR2


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 GABBR2-GABBR2


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 GABBR2-GABBR2


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