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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:HOMER2-IGHG1 (FusionGDB2 ID:HG9455TG3500)

Fusion Gene Summary for HOMER2-IGHG1

check button Fusion gene summary
Fusion gene informationFusion gene name: HOMER2-IGHG1
Fusion gene ID: hg9455tg3500
HgeneTgene
Gene symbol

HOMER2

IGHG1

Gene ID

9455

3500

Gene namehomer scaffold protein 2
SynonymsACPD|CPD|DFNA68|HOMER-2|VESL-2
Cytomap('HOMER2')('IGHG1')

15q25.2

Type of geneprotein-coding
Descriptionhomer protein homolog 2cupidinhomer homolog 2homer homolog 3homer scaffolding protein 2homer, neuronal immediate early gene, 2
Modification date20200313
UniProtAcc

Q9NSB8

P01857

Ensembl transtripts involved in fusion geneENST00000304231, ENST00000399166, 
ENST00000426485, ENST00000450735, 
ENST00000500334, 
Fusion gene scores* DoF score9 X 5 X 5=22595 X 52 X 17=83980
# samples 10116
** MAII scorelog2(10/225*10)=-1.16992500144231
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
log2(116/83980*10)=-6.17784907770745
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
Context

PubMed: HOMER2 [Title/Abstract] AND IGHG1 [Title/Abstract] AND fusion [Title/Abstract]

Most frequent breakpointHOMER2(83561493)-IGHG1(106209410), # samples:6
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


check button Fusion gene information
* 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
ChimerDB4LUSCTCGA-39-5029HOMER2chr15

83561493

-IGHG1chr14

106209410

-
ChimerDB4LUSCTCGA-39-5029HOMER2chr15

83561493

-IGHG1chr14

106237745

-
ChimerDB4LUSCTCGA-39-5031HOMER2chr15

83561493

-IGHG1chr14

106209410

-
ChimerDB4LUSCTCGA-43-7656HOMER2chr15

83561493

-IGHG1chr14

106209410

-
ChimerDB4LUSCTCGA-66-2788HOMER2chr15

83561493

-IGHG1chr14

106209410

-
ChimerDB4LUSCTCGA-98-8021HOMER2chr15

83561493

-IGHG1chr14

106209410

-
ChimerDB4LUSCTCGA-98-8021HOMER2chr15

83561493

-IGHG1chr14

106237745

-
ChimerDB4THCATCGA-FE-A23A-01AHOMER2chr15

83561493

-IGHG1chr14

106209410

-
ChimerDB4THCATCGA-FE-A23A-01AHOMER2chr15

83561493

-IGHG1chr14

106237745

-


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Fusion Gene ORF analysis for HOMER2-IGHG1

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-3CDSENST00000304231ENST00000390548HOMER2chr15

83561493

-IGHG1chr14

106209410

-
intron-3CDSENST00000399166ENST00000390548HOMER2chr15

83561493

-IGHG1chr14

106209410

-
intron-3CDSENST00000426485ENST00000390548HOMER2chr15

83561493

-IGHG1chr14

106209410

-
intron-3CDSENST00000450735ENST00000390548HOMER2chr15

83561493

-IGHG1chr14

106209410

-
intron-3CDSENST00000500334ENST00000390548HOMER2chr15

83561493

-IGHG1chr14

106209410

-
intron-intronENST00000304231ENST00000390548HOMER2chr15

83561493

-IGHG1chr14

106237745

-
intron-intronENST00000399166ENST00000390548HOMER2chr15

83561493

-IGHG1chr14

106237745

-
intron-intronENST00000426485ENST00000390548HOMER2chr15

83561493

-IGHG1chr14

106237745

-
intron-intronENST00000450735ENST00000390548HOMER2chr15

83561493

-IGHG1chr14

106237745

-
intron-intronENST00000500334ENST00000390548HOMER2chr15

83561493

-IGHG1chr14

106237745

-

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 HOMER2-IGHG1


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 HOMER2-IGHG1


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/:83561493/:106209410)
- 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
HOMER2

Q9NSB8

IGHG1

P01857

FUNCTION: Postsynaptic density scaffolding protein. Binds and cross-links cytoplasmic regions of GRM1, GRM5, ITPR1, DNM3, RYR1, RYR2, SHANK1 and SHANK3. By physically linking GRM1 and GRM5 with ER-associated ITPR1 receptors, it aids the coupling of surface receptors to intracellular calcium release. May also couple GRM1 to PI3 kinase through its interaction with AGAP2. Isoforms can be differently regulated and may play an important role in maintaining the plasticity at glutamatergic synapses (PubMed:9808459). Required for normal hearing (PubMed:25816005). Negatively regulates T cell activation by inhibiting the calcineurin-NFAT pathway. Acts by competing with calcineurin/PPP3CA for NFAT protein binding, hence preventing NFAT activation by PPP3CA (PubMed:18218901). {ECO:0000269|PubMed:18218901, ECO:0000269|PubMed:25816005, ECO:0000269|PubMed:9808459}.FUNCTION: Constant region of immunoglobulin heavy chains. Immunoglobulins, also known as antibodies, are membrane-bound or secreted glycoproteins produced by B lymphocytes. In the recognition phase of humoral immunity, the membrane-bound immunoglobulins serve as receptors which, upon binding of a specific antigen, trigger the clonal expansion and differentiation of B lymphocytes into immunoglobulins-secreting plasma cells. Secreted immunoglobulins mediate the effector phase of humoral immunity, which results in the elimination of bound antigens (PubMed:22158414, PubMed:20176268). The antigen binding site is formed by the variable domain of one heavy chain, together with that of its associated light chain. Thus, each immunoglobulin has two antigen binding sites with remarkable affinity for a particular antigen. The variable domains are assembled by a process called V-(D)-J rearrangement and can then be subjected to somatic hypermutations which, after exposure to antigen and selection, allow affinity maturation for a particular antigen (PubMed:17576170, PubMed:20176268). {ECO:0000303|PubMed:17576170, ECO:0000303|PubMed:20176268, ECO:0000303|PubMed:22158414}.

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 HOMER2-IGHG1


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 HOMER2-IGHG1


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 HOMER2-IGHG1


check button Drugs targeting genes involved in this fusion gene.
(DrugBank Version 5.1.8 2021-05-08)
PartnerGeneUniProtAccDrugBank IDDrug nameDrug activityDrug typeDrug status
TgeneIGHG1P01857DB09130CopperSmall moleculeApproved|Investigational

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Related Diseases for HOMER2-IGHG1


check button Diseases associated with fusion partners.
(DisGeNet 4.0)
PartnerGeneDisease IDDisease name# pubmedsSource
HgeneHOMER2C3711374Nonsyndromic Deafness2CLINGEN
HgeneHOMER2C0009171Cocaine Abuse1CTD_human
HgeneHOMER2C0036341Schizophrenia1PSYGENET
HgeneHOMER2C0236736Cocaine-Related Disorders1CTD_human
HgeneHOMER2C0600427Cocaine Dependence1CTD_human
HgeneHOMER2C4225240DEAFNESS, AUTOSOMAL DOMINANT 681CTD_human;GENOMICS_ENGLAND;UNIPROT
TgeneC0027121Myositis1CTD_human
TgeneC0032460Polycystic Ovary Syndrome1CTD_human
TgeneC0158353Infectious Myositis1CTD_human
TgeneC0544796Myositis, Proliferative1CTD_human
TgeneC0751356Idiopathic Inflammatory Myopathies1CTD_human
TgeneC0751357Myositis, Focal1CTD_human
TgeneC1136382Sclerocystic Ovaries1CTD_human