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Center for Computational Systems Medicine
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Fusion Gene and Fusion Protein Summary

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Fusion Amino Acid Sequences (multiple BPs and multiple gene isoforms)

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Fusion Protein Breakpoint Sequences - (for the Screening of the FusionNeoAntigens)

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Potential FusionNeoAntigens in HLA I - (netMHCpan v4.1 + deepHLApan v1.1)

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Potential FusionNeoAntigens in HLA II - (netMHCIIpan v4.1)

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Fusion Breakpoint 14 AA Peptide Structure - (RoseTTAFold)

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Filtering FusionNeoAntigens Through Checking the Interaction with HLAs in 3D - (Glide)

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Vaccine Design for the FusionNeoAntigens (RNA/protein sequences)

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Potential target of CAR-T therapy development

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Information on the samples that have these potential fusion neoantigens

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Fusion Protein Targeting Drugs - (Manual Curation)

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Fusion Protein Related diseases - (Manual Curation)

Fusion Protein:BRD8-HDAC3

Fusion Gene and Fusion Protein Summary

check button Fusion gene summary
Fusion partner gene informationFusion gene name: BRD8-HDAC3
FusionPDB ID: 10215
FusionGDB2.0 ID: 10215
HgeneTgene
Gene symbol

BRD8

HDAC3

Gene ID

10902

8841

Gene namebromodomain containing 8histone deacetylase 3
SynonymsSMAP|SMAP2|p120HD3|KDAC3|RPD3|RPD3-2
Cytomap

5q31.2

5q31.3

Type of geneprotein-codingprotein-coding
Descriptionbromodomain-containing protein 8skeletal muscle abundant protein 2thyroid hormone receptor coactivating protein of 120 kDatrCP120histone deacetylase 3SMAP45
Modification date2020031320200329
UniProtAcc

Q9H0E9

Main function of 5'-partner protein: FUNCTION: May act as a coactivator during transcriptional activation by hormone-activated nuclear receptors (NR). Isoform 2 stimulates transcriptional activation by AR/DHTR, ESR1/NR3A1, RXRA/NR2B1 and THRB/ERBA2. At least isoform 1 and isoform 2 are components of the NuA4 histone acetyltransferase (HAT) complex which is involved in transcriptional activation of select genes principally by acetylation of nucleosomal histones H4 and H2A. This modification may both alter nucleosome - DNA interactions and promote interaction of the modified histones with other proteins which positively regulate transcription. This complex may be required for the activation of transcriptional programs associated with oncogene and proto-oncogene mediated growth induction, tumor suppressor mediated growth arrest and replicative senescence, apoptosis, and DNA repair. NuA4 may also play a direct role in DNA repair when recruited to sites of DNA damage. Component of a SWR1-like complex that specifically mediates the removal of histone H2A.Z/H2AZ1 from the nucleosome. {ECO:0000269|PubMed:10517671, ECO:0000269|PubMed:14966270, ECO:0000269|PubMed:24463511}.

O15379

Main function of 5'-partner protein: FUNCTION: Responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4), and some other non-histone substrates. Histone deacetylation gives a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developmental events. Histone deacetylases act via the formation of large multiprotein complexes. Participates in the BCL6 transcriptional repressor activity by deacetylating the H3 'Lys-27' (H3K27) on enhancer elements, antagonizing EP300 acetyltransferase activity and repressing proximal gene expression. Probably participates in the regulation of transcription through its binding to the zinc-finger transcription factor YY1; increases YY1 repression activity. Required to repress transcription of the POU1F1 transcription factor. Acts as a molecular chaperone for shuttling phosphorylated NR2C1 to PML bodies for sumoylation (PubMed:21444723, PubMed:23911289). Contributes, together with XBP1 isoform 1, to the activation of NFE2L2-mediated HMOX1 transcription factor gene expression in a PI(3)K/mTORC2/Akt-dependent signaling pathway leading to endothelial cell (EC) survival under disturbed flow/oxidative stress (PubMed:25190803). Regulates both the transcriptional activation and repression phases of the circadian clock in a deacetylase activity-independent manner (By similarity). During the activation phase, promotes the accumulation of ubiquitinated ARNTL/BMAL1 at the E-boxes and during the repression phase, blocks FBXL3-mediated CRY1/2 ubiquitination and promotes the interaction of CRY1 and ARNTL/BMAL1 (By similarity). The NCOR1-HDAC3 complex regulates the circadian expression of the core clock gene ARTNL/BMAL1 and the genes involved in lipid metabolism in the liver (By similarity). Serves as a corepressor of RARA, causing its deacetylation and inhibition of RARE DNA element binding (PubMed:28167758). In association with RARA, plays a role in the repression of microRNA-10a and thereby in the inflammatory response (PubMed:28167758). Interacts with SETD5 (By similarity). {ECO:0000250|UniProtKB:O88895, ECO:0000269|PubMed:21444723, ECO:0000269|PubMed:23911289, ECO:0000269|PubMed:25190803, ECO:0000269|PubMed:28167758}.
Ensembl transtripts involved in fusion geneENST idsENST00000230901, ENST00000254900, 
ENST00000402931, ENST00000411594, 
ENST00000455658, ENST00000515014, 
ENST00000469207, ENST00000305264, 
Fusion gene scores for assessment (based on all fusion genes of FusionGDB 2.0)* DoF score5 X 5 X 3=753 X 3 X 3=27
# samples 53
** MAII scorelog2(5/75*10)=-0.584962500721156
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
log2(3/27*10)=0.15200309344505
effective Gene in Pan-Cancer Fusion Genes (eGinPCFGs).
DoF>8 and MAII>0
Fusion gene context

PubMed: BRD8 [Title/Abstract] AND HDAC3 [Title/Abstract] AND fusion [Title/Abstract]

Fusion neoantigen context

PubMed: BRD8 [Title/Abstract] AND HDAC3 [Title/Abstract] AND neoantigen [Title/Abstract]

Most frequent breakpoint (based on all fusion genes of FusionGDB 2.0)BRD8(137513260)-HDAC3(141009692), # samples:1
Anticipated loss of major functional domain due to fusion event.BRD8-HDAC3 seems lost the major protein functional domain in Hgene partner, which is a CGC by not retaining the major functional domain in the partially deleted in-frame ORF.
BRD8-HDAC3 seems lost the major protein functional domain in Hgene partner, which is a essential gene by not retaining the major functional domain in the partially deleted in-frame 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
HgeneBRD8

GO:0043967

histone H4 acetylation

14966270

HgeneBRD8

GO:0043968

histone H2A acetylation

14966270

TgeneHDAC3

GO:0000122

negative regulation of transcription by RNA polymerase II

16569215|18417529|18854353

TgeneHDAC3

GO:0001934

positive regulation of protein phosphorylation

25190803

TgeneHDAC3

GO:0006476

protein deacetylation

17172643|21030595

TgeneHDAC3

GO:0031647

regulation of protein stability

25190803

TgeneHDAC3

GO:0042307

positive regulation of protein import into nucleus

25190803

TgeneHDAC3

GO:0045944

positive regulation of transcription by RNA polymerase II

25190803

TgeneHDAC3

GO:0071498

cellular response to fluid shear stress

25190803



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/chr5:137513260/chr5:141009692)
- 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 buttonRetention analysis results 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, are available here.

check buttonFusion gene breakpoints across BRD8 (5'-gene)
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
all structure

check buttonFusion gene breakpoints across HDAC3 (3'-gene)
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
all structure


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Fusion Amino Acid Sequences


check buttonFusion information from ORFfinder translation from full-length transcript sequence from FusionPDB.
HenstTenstHgeneHchrHbpHstrandTgeneTchrTbpTstrandSeq length
(transcript)
BP loci
(transcript)
Predicted start
(transcript)
Predicted stop
(transcript)
Seq length
(amino acids)
ENST00000254900BRD8chr5137513260-ENST00000305264HDAC3chr5141009692-20864883721493373
ENST00000230901BRD8chr5137513260-ENST00000305264HDAC3chr5141009692-1730132161137373
ENST00000402931BRD8chr5137513260-ENST00000305264HDAC3chr5141009692-1733135191140373
ENST00000411594BRD8chr5137513260-ENST00000305264HDAC3chr5141009692-1769171551176373
ENST00000455658BRD8chr5137513260-ENST00000305264HDAC3chr5141009692-1729131151136373

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
ENST00000254900ENST00000305264BRD8chr5137513260-HDAC3chr5141009692-0.0011205930.9988794
ENST00000230901ENST00000305264BRD8chr5137513260-HDAC3chr5141009692-0.0015122340.9984877
ENST00000402931ENST00000305264BRD8chr5137513260-HDAC3chr5141009692-0.001508170.99849176
ENST00000411594ENST00000305264BRD8chr5137513260-HDAC3chr5141009692-0.001606370.9983936
ENST00000455658ENST00000305264BRD8chr5137513260-HDAC3chr5141009692-0.0015046510.99849534

check button Predicted full-length fusion amino acid sequences. For individual full-length fusion transcript sequence from FusionPDB, we ran ORFfinder and chose the longest ORF among all the predicted ones.

Get the fusion protein sequences from here.

Fusion protein sequence information is available in the fasta format.
>FusionGDB ID_FusionGDB isoform ID_FGname_Hgene_Hchr_Hbp_Henst_Tgene_Tchr_Tbp_Tenst_length(fusion AA) seq_BP

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Fusion Protein Breakpoint Sequences for BRD8-HDAC3

check button +/-13 AA sequence from the breakpoints of the fusion protein sequences.
HgeneHchrHbpTgeneTchrTbpLength(fusion protein)BP in fusion proteinPeptide
BRD8chr5137513260HDAC3chr514100969213124STGPTEPWSIREKLCLASSVMRSGDQ
BRD8chr5137513260HDAC3chr514100969213224STGPTEPWSIREKLCLASSVMRSGDQ
BRD8chr5137513260HDAC3chr514100969213524STGPTEPWSIREKLCLASSVMRSGDQ
BRD8chr5137513260HDAC3chr514100969217124STGPTEPWSIREKLCLASSVMRSGDQ
BRD8chr5137513260HDAC3chr514100969248824STGPTEPWSIREKLCLASSVMRSGDQ

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Potential FusionNeoAntigen Information of BRD8-HDAC3 in HLA I

check button Multiple sequence alignments of the potential FusionNeoAntigens per fusion breakpoints. If the MSA is empty, then it means that there were predicted fusion neoantigens in this fusion breakpoint, but those predicted fusion neoantigens were not across the breakpoint, which is not fusion-specific.
BRD8-HDAC3_137513260_141009692.msa

check button Potential FusionNeoAntigen Information
* We used NetMHCpan v4.1 (%rank<0.5) and deepHLApan v1.1 (immunogenic score>0.5)
Fusion geneHchrHbpTgeneTchrTbpHLA IFusionNeoAntigen peptideBinding scoreImmunogenic scoreNeoantigen start (at BP 13)Neoantigen end (at BP 13)
BRD8-HDAC3chr5137513260chr5141009692132HLA-A30:08SIREKLCLA0.90130.7255817
BRD8-HDAC3chr5137513260chr5141009692132HLA-B35:03EPWSIREKL0.89630.7937514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B35:02EPWSIREKL0.73050.8579514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B35:04EPWSIREKL0.73050.8579514
BRD8-HDAC3chr5137513260chr5141009692132HLA-A74:09KLCLASSVMR0.98390.76111222
BRD8-HDAC3chr5137513260chr5141009692132HLA-A74:03KLCLASSVMR0.98390.76111222
BRD8-HDAC3chr5137513260chr5141009692132HLA-A74:11KLCLASSVMR0.98390.76111222
BRD8-HDAC3chr5137513260chr5141009692132HLA-B42:02EPWSIREKL0.8950.5203514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B42:01EPWSIREKL0.84720.5182514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B35:12EPWSIREKL0.73050.8579514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B39:10EPWSIREKL0.52370.8374514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B42:02TEPWSIREKL0.63660.5472414
BRD8-HDAC3chr5137513260chr5141009692132HLA-B42:01TEPWSIREKL0.58290.5463414
BRD8-HDAC3chr5137513260chr5141009692132HLA-B35:23EPWSIREKL0.92810.8209514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B35:24EPWSIREKL0.87360.878514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B35:30EPWSIREKL0.81150.6856514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B35:17EPWSIREKL0.81150.6856514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B35:09EPWSIREKL0.73050.8579514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B67:01EPWSIREKL0.60830.5496514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B08:12EPWSIREKL0.51680.6242514
BRD8-HDAC3chr5137513260chr5141009692132HLA-B18:07EPWSIREKL0.10120.8858514
BRD8-HDAC3chr5137513260chr5141009692132HLA-A74:01KLCLASSVMR0.98390.76111222
BRD8-HDAC3chr5137513260chr5141009692132HLA-B40:04TEPWSIREKL0.96830.7168414

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Potential FusionNeoAntigen Information of BRD8-HDAC3 in HLA II

check button Multiple sequence alignments of the potential FusionNeoAntigens per fusion breakpoints. If the MSA is empty, then it means that there were predicted fusion neoantigens in this fusion breakpoint, but those predicted fusion neoantigens were not across the breakpoint, which is not fusion-specific.

check button Potential FusionNeoAntigen Information
* We used NetMHCIIpan v4.1 (%rank<0.5).
Fusion geneHchrHbpTgeneTchrTbpHLA IIFusionNeoAntigen peptideNeoantigen start (at BP 13)Neoantigen end (at BP 13)

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Fusion breakpoint peptide structures of BRD8-HDAC3

check button3D structures of the fusion breakpoint peptide of 14AA sequence that have potential fusion neoantigens
* The minimum length of the amino acid sequence in RoseTTAFold is 14AA. Here, we predicted the 14AA fusion protein breakpoint sequence not the fusion neoantigen peptide, which is shorter than 14 AA.
File nameBPseqHgeneTgeneHchrHbpTchrTbpAAlen
7106PWSIREKLCLASSVBRD8HDAC3chr5137513260chr5141009692132

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Filtering FusionNeoAntigens Through Checking the Interaction with HLAs in 3D of BRD8-HDAC3

check buttonVirtual screening between 25 HLAs (from PDB) and FusionNeoAntigens
* We used Glide to predict the interaction between HLAs and neoantigens.
HLA allelePDB IDFile nameBPseqDocking scoreGlide score
HLA-B14:023BVN7106PWSIREKLCLASSV-6.66111-6.77451
HLA-B14:023BVN7106PWSIREKLCLASSV-6.49216-7.52746
HLA-B52:013W397106PWSIREKLCLASSV-5.57342-5.68682
HLA-B52:013W397106PWSIREKLCLASSV-3.59959-4.63489
HLA-A11:014UQ27106PWSIREKLCLASSV-3.54213-3.65553
HLA-A24:025HGA7106PWSIREKLCLASSV-7.6647-7.7781
HLA-A24:025HGA7106PWSIREKLCLASSV-4.05482-5.09012
HLA-B44:053DX87106PWSIREKLCLASSV-5.24587-5.35927
HLA-B44:053DX87106PWSIREKLCLASSV-4.91507-5.95037
HLA-A02:016TDR7106PWSIREKLCLASSV-3.67735-4.71265

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Vaccine Design for the FusionNeoAntigens of BRD8-HDAC3

check button mRNA and peptide sequences of FusionNeoAntigens that have potential interaction with HLA-Is.
Fusion geneHchrHbpTchrTbpStart in +/-13AAEnd in +/-13AAFusionNeoAntigen peptide sequenceFusionNeoAntigen RNA sequence
BRD8-HDAC3chr5137513260chr51410096921222KLCLASSVMRTTGCCCAGTGTTTCCCGGGCTCTTTGAGTT
BRD8-HDAC3chr5137513260chr5141009692414TEPWSIREKLTGTCATGAGAAGTGGCGATCAAAATTGCCC
BRD8-HDAC3chr5137513260chr5141009692514EPWSIREKLCATGAGAAGTGGCGATCAAAATTGCCC
BRD8-HDAC3chr5137513260chr5141009692817SIREKLCLATGGCGATCAAAATTGCCCAGTGTTTCC

check button mRNA and peptide sequences of FusionNeoAntigens that have potential interaction with HLA-IIs.
Fusion geneHchrHbpTchrTbpStart in +/-13AAEnd in +/-13AAFusionNeoAntigen peptideFusionNEoAntigen RNA sequence

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Information of the samples that have these potential fusion neoantigens of BRD8-HDAC3

check button These samples were reported as having these fusion breakpoints. For individual breakpoints, we checked the open reading frames considering multiple gene isoforms and chose the in-frame fusion genes only. Then, we made fusion protein sequences and predicted the fusion neoantigens. These fusion-positive samples may have these potential fusion neoantigens.
Cancer typeFusion geneHchrHbpHenstTchrTbpTenstSample
STADBRD8-HDAC3chr5137513260ENST00000230901chr5141009692ENST00000305264TCGA-CD-8531-01A

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Potential target of CAR-T therapy development for BRD8-HDAC3

check button Predicted 3D structure. We used RoseTTAFold.

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, to provide the retention of the transmembrane domain, we only show the protein feature retention information of those transmembrane features


* Minus value of BPloci means that the break point is located before the CDS.
- In-frame and retained 'Transmembrane'.
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenProtein featureProtein feature note

check button Subcellular localization prediction of the transmembrane domain retained fusion proteins
* We used DeepLoc 1.0. The order of the X-axis of the barplot is as follows: Entry_ID, Localization, Type, Nucleus, Cytoplasm, Extracellular, Mitochondrion, Cell_membrane, Endoplasmic_reticulum, Plastid, Golgi.apparatus, Lysosome.Vacuole, Peroxisome. Y-axis is the output score of DeepLoc. Clicking the image will open a new tab with a large image.
HgeneHchrHbpHenstTgeneTchrTbpTenstDeepLoc result

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Related Drugs to BRD8-HDAC3

check button Drugs used for this fusion-positive patient.
(Manual curation of PubMed, 04-30-2022 + MyCancerGenome)
HgeneTgeneDrugSourcePMID

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Related Diseases to BRD8-HDAC3

check button Diseases that have this fusion gene.
(Manual curation of PubMed, 04-30-2022 + MyCancerGenome)
HgeneTgeneDiseaseSourcePMID

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