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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:DLG4-BBS2 (FusionGDB2 ID:23088)

Fusion Gene Summary for DLG4-BBS2

check button Fusion gene summary
Fusion gene informationFusion gene name: DLG4-BBS2
Fusion gene ID: 23088
HgeneTgene
Gene symbol

DLG4

BBS2

Gene ID

3996

583

Gene nameLLGL scribble cell polarity complex component 1Bardet-Biedl syndrome 2
SynonymsDLG4|HUGL|HUGL-1|HUGL1|LLGL|Lgl1|Mgl1BBS|RP74
Cytomap

17p11.2

16q13

Type of geneprotein-codingprotein-coding
Descriptionlethal(2) giant larvae protein homolog 1LLGL1, scribble cell polarity complex componenthuman homolog to the D-lgl gene proteinlethal giant larvae homolog 1, scribble cell polarity complex componentBardet-Biedl syndrome 2 protein
Modification date2020032920200313
UniProtAcc

P78352

Q9BXC9

Ensembl transtripts involved in fusion geneENST00000302955, ENST00000399506, 
ENST00000399510, ENST00000485100, 
ENST00000561951, ENST00000245157, 
ENST00000568104, 
Fusion gene scores* DoF score6 X 4 X 6=1445 X 5 X 5=125
# samples 67
** MAII scorelog2(6/144*10)=-1.26303440583379
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
log2(7/125*10)=-0.836501267717121
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
Context

PubMed: DLG4 [Title/Abstract] AND BBS2 [Title/Abstract] AND fusion [Title/Abstract]

Most frequent breakpointDLG4(7106222)-BBS2(56548592), # samples:1
Anticipated loss of major functional domain due to fusion event.DLG4-BBS2 seems lost the major protein functional domain in Hgene partner, which is a essential gene due to the frame-shifted ORF.
* 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
HgeneDLG4

GO:0030866

cortical actin cytoskeleton organization

7542763

HgeneDLG4

GO:0065003

protein-containing complex assembly

7542763


check buttonFusion gene breakpoints across DLG4 (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 BBS2 (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
ChimerDB4SKCMTCGA-EE-A3AE-06ADLG4chr17

7106222

-BBS2chr16

56548592

-


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Fusion Gene ORF analysis for DLG4-BBS2

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
5CDS-intronENST00000302955ENST00000561951DLG4chr17

7106222

-BBS2chr16

56548592

-
5CDS-intronENST00000399506ENST00000561951DLG4chr17

7106222

-BBS2chr16

56548592

-
5CDS-intronENST00000399510ENST00000561951DLG4chr17

7106222

-BBS2chr16

56548592

-
Frame-shiftENST00000302955ENST00000245157DLG4chr17

7106222

-BBS2chr16

56548592

-
Frame-shiftENST00000302955ENST00000568104DLG4chr17

7106222

-BBS2chr16

56548592

-
Frame-shiftENST00000399506ENST00000245157DLG4chr17

7106222

-BBS2chr16

56548592

-
Frame-shiftENST00000399506ENST00000568104DLG4chr17

7106222

-BBS2chr16

56548592

-
Frame-shiftENST00000399510ENST00000245157DLG4chr17

7106222

-BBS2chr16

56548592

-
Frame-shiftENST00000399510ENST00000568104DLG4chr17

7106222

-BBS2chr16

56548592

-
intron-3CDSENST00000485100ENST00000245157DLG4chr17

7106222

-BBS2chr16

56548592

-
intron-3CDSENST00000485100ENST00000568104DLG4chr17

7106222

-BBS2chr16

56548592

-
intron-intronENST00000485100ENST00000561951DLG4chr17

7106222

-BBS2chr16

56548592

-

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 DLG4-BBS2


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 DLG4-BBS2


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/:7106222/:56548592)
- 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
DLG4

P78352

BBS2

Q9BXC9

FUNCTION: Postsynaptic scaffolding protein that plays a critical role in synaptogenesis and synaptic plasticity by providing a platform for the postsynaptic clustering of crucial synaptic proteins. Interacts with the cytoplasmic tail of NMDA receptor subunits and shaker-type potassium channels. Required for synaptic plasticity associated with NMDA receptor signaling. Overexpression or depletion of DLG4 changes the ratio of excitatory to inhibitory synapses in hippocampal neurons. May reduce the amplitude of ASIC3 acid-evoked currents by retaining the channel intracellularly. May regulate the intracellular trafficking of ADR1B. Also regulates AMPA-type glutamate receptor (AMPAR) immobilization at postsynaptic density keeping the channels in an activated state in the presence of glutamate and preventing synaptic depression. {ECO:0000250|UniProtKB:Q62108}.FUNCTION: The BBSome complex is thought to function as a coat complex required for sorting of specific membrane proteins to the primary cilia. The BBSome complex is required for ciliogenesis but is dispensable for centriolar satellite function. This ciliogenic function is mediated in part by the Rab8 GDP/GTP exchange factor, which localizes to the basal body and contacts the BBSome. Rab8(GTP) enters the primary cilium and promotes extension of the ciliary membrane. Firstly the BBSome associates with the ciliary membrane and binds to RAB3IP/Rabin8, the guanosyl exchange factor (GEF) for Rab8 and then the Rab8-GTP localizes to the cilium and promotes docking and fusion of carrier vesicles to the base of the ciliary membrane. The BBSome complex, together with the LTZL1, controls SMO ciliary trafficking and contributes to the sonic hedgehog (SHH) pathway regulation. Required for proper BBSome complex assembly and its ciliary localization. {ECO:0000269|PubMed:17574030, ECO:0000269|PubMed:22072986}.

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 DLG4-BBS2


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 DLG4-BBS2


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 DLG4-BBS2


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 DLG4-BBS2


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