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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:LRCH1-PIK3R1 (FusionGDB2 ID:HG23143TG5295)

Fusion Gene Summary for LRCH1-PIK3R1

check button Fusion gene summary
Fusion gene informationFusion gene name: LRCH1-PIK3R1
Fusion gene ID: hg23143tg5295
HgeneTgene
Gene symbol

LRCH1

PIK3R1

Gene ID

23143

5295

Gene nameleucine rich repeats and calponin homology domain containing 1phosphoinositide-3-kinase regulatory subunit 1
SynonymsCHDC1|NP81AGM7|GRB1|IMD36|p85|p85-ALPHA
Cytomap('LRCH1')('PIK3R1')

13q14.13-q14.2

5q13.1

Type of geneprotein-codingprotein-coding
Descriptionleucine-rich repeat and calponin homology domain-containing protein 1leucine-rich repeats and calponin homology (CH) domain containing 1neuronal protein 81phosphatidylinositol 3-kinase regulatory subunit alphaPI3-kinase subunit p85-alphaPI3K regulatory subunit alphaphosphatidylinositol 3-kinase 85 kDa regulatory subunit alphaphosphatidylinositol 3-kinase, regulatory subunit, polypeptide 1 (p85 alpha)ph
Modification date2020031320200327
UniProtAcc..
Ensembl transtripts involved in fusion geneENST00000311191, ENST00000389797, 
ENST00000389798, 
Fusion gene scores* DoF score12 X 7 X 5=4209 X 9 X 4=324
# samples 139
** MAII scorelog2(13/420*10)=-1.69187770463767
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
log2(9/324*10)=-1.84799690655495
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
Context

PubMed: LRCH1 [Title/Abstract] AND PIK3R1 [Title/Abstract] AND fusion [Title/Abstract]

Most frequent breakpointLRCH1(47155523)-PIK3R1(67593268), # 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
HgeneLRCH1

GO:0034260

negative regulation of GTPase activity

28028151

TgenePIK3R1

GO:0014065

phosphatidylinositol 3-kinase signaling

7782332

TgenePIK3R1

GO:0034976

response to endoplasmic reticulum stress

20348923

TgenePIK3R1

GO:0042307

positive regulation of protein import into nucleus

20348923

TgenePIK3R1

GO:0048009

insulin-like growth factor receptor signaling pathway

7782332

TgenePIK3R1

GO:0050821

protein stabilization

20348923

TgenePIK3R1

GO:0060396

growth hormone receptor signaling pathway

7782332



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


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Fusion Gene ORF analysis for LRCH1-PIK3R1

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

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 LRCH1-PIK3R1


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 LRCH1-PIK3R1


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/:47155523/:67593268)
- 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
..
FUNCTION: Transcriptional activator which is required for calcium-dependent dendritic growth and branching in cortical neurons. Recruits CREB-binding protein (CREBBP) to nuclear bodies. Component of the CREST-BRG1 complex, a multiprotein complex that regulates promoter activation by orchestrating a calcium-dependent release of a repressor complex and a recruitment of an activator complex. In resting neurons, transcription of the c-FOS promoter is inhibited by BRG1-dependent recruitment of a phospho-RB1-HDAC1 repressor complex. Upon calcium influx, RB1 is dephosphorylated by calcineurin, which leads to release of the repressor complex. At the same time, there is increased recruitment of CREBBP to the promoter by a CREST-dependent mechanism, which leads to transcriptional activation. The CREST-BRG1 complex also binds to the NR2B promoter, and activity-dependent induction of NR2B expression involves a release of HDAC1 and recruitment of CREBBP (By similarity). {ECO:0000250}.FUNCTION: Transcriptional activator which is required for calcium-dependent dendritic growth and branching in cortical neurons. Recruits CREB-binding protein (CREBBP) to nuclear bodies. Component of the CREST-BRG1 complex, a multiprotein complex that regulates promoter activation by orchestrating a calcium-dependent release of a repressor complex and a recruitment of an activator complex. In resting neurons, transcription of the c-FOS promoter is inhibited by BRG1-dependent recruitment of a phospho-RB1-HDAC1 repressor complex. Upon calcium influx, RB1 is dephosphorylated by calcineurin, which leads to release of the repressor complex. At the same time, there is increased recruitment of CREBBP to the promoter by a CREST-dependent mechanism, which leads to transcriptional activation. The CREST-BRG1 complex also binds to the NR2B promoter, and activity-dependent induction of NR2B expression involves a release of HDAC1 and recruitment of CREBBP (By similarity). {ECO:0000250}.

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 LRCH1-PIK3R1


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 LRCH1-PIK3R1


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 LRCH1-PIK3R1


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 LRCH1-PIK3R1


check button Diseases associated with fusion partners.
(DisGeNet 4.0)
PartnerGeneDisease IDDisease name# pubmedsSource
HgeneLRCH1C0038454Cerebrovascular accident1CTD_human
HgeneLRCH1C0751956Acute Cerebrovascular Accidents1CTD_human
TgeneC0878684SHORT syndrome7CLINGEN;CTD_human;GENOMICS_ENGLAND;ORPHANET;UNIPROT
TgeneC0001973Alcoholic Intoxication, Chronic2PSYGENET
TgeneC0033578Prostatic Neoplasms2CTD_human
TgeneC0376358Malignant neoplasm of prostate2CTD_human
TgeneC3554689AGAMMAGLOBULINEMIA 7, AUTOSOMAL RECESSIVE2CTD_human;GENOMICS_ENGLAND
TgeneC4014934IMMUNODEFICIENCY 362CTD_human;GENOMICS_ENGLAND
TgeneC0001768Agammaglobulinemia1GENOMICS_ENGLAND
TgeneC0006267Bronchiectasis1GENOMICS_ENGLAND
TgeneC0006413Burkitt Lymphoma1CTD_human
TgeneC0007097Carcinoma1CTD_human
TgeneC0021655Insulin Resistance1CTD_human
TgeneC0024667Animal Mammary Neoplasms1CTD_human
TgeneC0024668Mammary Neoplasms, Experimental1CTD_human
TgeneC0042900Vitiligo1CTD_human
TgeneC0205696Anaplastic carcinoma1CTD_human
TgeneC0205697Carcinoma, Spindle-Cell1CTD_human
TgeneC0205698Undifferentiated carcinoma1CTD_human
TgeneC0205699Carcinomatosis1CTD_human
TgeneC0343640African Burkitt's lymphoma1CTD_human
TgeneC0494261Combined immunodeficiency1GENOMICS_ENGLAND
TgeneC0920563Insulin Sensitivity1CTD_human
TgeneC1257925Mammary Carcinoma, Animal1CTD_human
TgeneC1832241Agammaglobulinemia, non-Bruton type1ORPHANET
TgeneC3714976ACTIVATED PI3K-DELTA SYNDROME1ORPHANET
TgeneC4721444Burkitt Leukemia1CTD_human