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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:GRK4-GRK4 (FusionGDB2 ID:34882)

Fusion Gene Summary for GRK4-GRK4

check button Fusion gene summary
Fusion gene informationFusion gene name: GRK4-GRK4
Fusion gene ID: 34882
HgeneTgene
Gene symbol

GRK4

GRK4

Gene ID

2868

2868

Gene nameG protein-coupled receptor kinase 4G protein-coupled receptor kinase 4
SynonymsGPRK2L|GPRK4|GRK4a|IT11GPRK2L|GPRK4|GRK4a|IT11
Cytomap

4p16.3

4p16.3

Type of geneprotein-codingprotein-coding
DescriptionG protein-coupled receptor kinase 4G protein-coupled receptor kinase 2-likeG protein-coupled receptor kinase 4G protein-coupled receptor kinase 2-like
Modification date2020031320200313
UniProtAcc

P32298

P32298

Ensembl transtripts involved in fusion geneENST00000345167, ENST00000398051, 
ENST00000398052, ENST00000442472, 
ENST00000503518, ENST00000504933, 
ENST00000509545, 		ENST00000345167, 
ENST00000398051, ENST00000398052, 
ENST00000442472, ENST00000503518, 
ENST00000504933, ENST00000509545, 
Fusion gene scores* DoF score2 X 2 X 1=47 X 7 X 4=196
# samples 27
** MAII scorelog2(2/4*10)=2.32192809488736log2(7/196*10)=-1.48542682717024
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
Context

PubMed: GRK4 [Title/Abstract] AND GRK4 [Title/Abstract] AND fusion [Title/Abstract]

Most frequent breakpointGRK4(3023248)-GRK4(3023346), # 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
HgeneGRK4

GO:0031623

receptor internalization

20074556

TgeneGRK4

GO:0031623

receptor internalization

20074556


check buttonFusion gene breakpoints across GRK4 (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 GRK4 (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/ABF329649GRK4chr4

3023248

+GRK4chr4

3023346

-


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Fusion Gene ORF analysis for GRK4-GRK4

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-intronENST00000345167ENST00000345167GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000345167ENST00000398051GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000345167ENST00000398052GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000345167ENST00000442472GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000345167ENST00000503518GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000345167ENST00000504933GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000345167ENST00000509545GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398051ENST00000345167GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398051ENST00000398051GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398051ENST00000398052GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398051ENST00000442472GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398051ENST00000503518GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398051ENST00000504933GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398051ENST00000509545GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398052ENST00000345167GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398052ENST00000398051GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398052ENST00000398052GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398052ENST00000442472GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398052ENST00000503518GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398052ENST00000504933GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000398052ENST00000509545GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000442472ENST00000345167GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000442472ENST00000398051GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000442472ENST00000398052GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000442472ENST00000442472GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000442472ENST00000503518GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000442472ENST00000504933GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000442472ENST00000509545GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000503518ENST00000345167GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000503518ENST00000398051GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000503518ENST00000398052GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000503518ENST00000442472GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000503518ENST00000503518GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000503518ENST00000504933GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000503518ENST00000509545GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000504933ENST00000345167GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000504933ENST00000398051GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000504933ENST00000398052GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000504933ENST00000442472GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000504933ENST00000503518GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000504933ENST00000504933GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000504933ENST00000509545GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000509545ENST00000345167GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000509545ENST00000398051GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000509545ENST00000398052GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000509545ENST00000442472GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000509545ENST00000503518GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000509545ENST00000504933GRK4chr4

3023248

+GRK4chr4

3023346

-
intron-intronENST00000509545ENST00000509545GRK4chr4

3023248

+GRK4chr4

3023346

-

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 GRK4-GRK4


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 GRK4-GRK4


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/:3023248/:3023346)
- 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
GRK4

P32298

GRK4

P32298

FUNCTION: Specifically phosphorylates the activated forms of G protein-coupled receptors. GRK4-alpha can phosphorylate rhodopsin and its activity is inhibited by calmodulin; the other three isoforms do not phosphorylate rhodopsin and do not interact with calmodulin. GRK4-alpha and GRK4-gamma phosphorylate DRD3. Phosphorylates ADRB2. {ECO:0000269|PubMed:19520868, ECO:0000269|PubMed:8626439}.FUNCTION: Specifically phosphorylates the activated forms of G protein-coupled receptors. GRK4-alpha can phosphorylate rhodopsin and its activity is inhibited by calmodulin; the other three isoforms do not phosphorylate rhodopsin and do not interact with calmodulin. GRK4-alpha and GRK4-gamma phosphorylate DRD3. Phosphorylates ADRB2. {ECO:0000269|PubMed:19520868, ECO:0000269|PubMed:8626439}.

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 GRK4-GRK4


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 GRK4-GRK4


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 GRK4-GRK4


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 GRK4-GRK4


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