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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:SASH1-ARID1B

Fusion Gene and Fusion Protein Summary

check button Fusion gene summary
Fusion partner gene informationFusion gene name: SASH1-ARID1B
FusionPDB ID: 79229
FusionGDB2.0 ID: 79229
HgeneTgene
Gene symbol

SASH1

ARID1B

Gene ID

23328

57492

Gene nameSAM and SH3 domain containing 1AT-rich interaction domain 1B
SynonymsCAPOK|DUH1|SH3D6A|dJ323M4.16A3-5|BAF250B|BRIGHT|CSS1|DAN15|ELD/OSA1|MRD12|OSA2|P250R
Cytomap

6q24.3-q25.1

6q25.3

Type of geneprotein-codingprotein-coding
DescriptionSAM and SH3 domain-containing protein 1proline-glutamate repeat-containing proteinAT-rich interactive domain-containing protein 1BARID domain-containing protein 1BAT rich interactive domain 1B (SWI1-like)BRG1-associated factor 250bBRG1-binding protein ELD/OSA1ELD (eyelid)/OSA protein
Modification date2020031320200320
UniProtAcc

O94885

Main function of 5'-partner protein: FUNCTION: Is a positive regulator of NF-kappa-B signaling downstream of TLR4 activation. It acts as a scaffold molecule to assemble a molecular complex that includes TRAF6, MAP3K7, CHUK and IKBKB, thereby facilitating NF-kappa-B signaling activation (PubMed:23776175). Regulates TRAF6 and MAP3K7 ubiquitination (PubMed:23776175). Involved in the regulation of cell mobility (PubMed:23333244, PubMed:23776175, PubMed:25315659). Regulates lipolysaccharide (LPS)-induced endothelial cell migration (PubMed:23776175). Is involved in the regulation of skin pigmentation through the control of melanocyte migration in the epidermis (PubMed:23333244). {ECO:0000269|PubMed:23333244, ECO:0000269|PubMed:23776175, ECO:0000269|PubMed:25315659}.

Q8NFD5

Main function of 5'-partner protein: FUNCTION: Involved in transcriptional activation and repression of select genes by chromatin remodeling (alteration of DNA-nucleosome topology). Component of SWI/SNF chromatin remodeling complexes that carry out key enzymatic activities, changing chromatin structure by altering DNA-histone contacts within a nucleosome in an ATP-dependent manner. Belongs to the neural progenitors-specific chromatin remodeling complex (npBAF complex) and the neuron-specific chromatin remodeling complex (nBAF complex). During neural development a switch from a stem/progenitor to a postmitotic chromatin remodeling mechanism occurs as neurons exit the cell cycle and become committed to their adult state. The transition from proliferating neural stem/progenitor cells to postmitotic neurons requires a switch in subunit composition of the npBAF and nBAF complexes. As neural progenitors exit mitosis and differentiate into neurons, npBAF complexes which contain ACTL6A/BAF53A and PHF10/BAF45A, are exchanged for homologous alternative ACTL6B/BAF53B and DPF1/BAF45B or DPF3/BAF45C subunits in neuron-specific complexes (nBAF). The npBAF complex is essential for the self-renewal/proliferative capacity of the multipotent neural stem cells. The nBAF complex along with CREST plays a role regulating the activity of genes essential for dendrite growth (By similarity). Binds DNA non-specifically (PubMed:14982958, PubMed:15170388). {ECO:0000250|UniProtKB:E9Q4N7, ECO:0000269|PubMed:14982958, ECO:0000269|PubMed:15170388, ECO:0000303|PubMed:12672490, ECO:0000303|PubMed:22952240, ECO:0000303|PubMed:26601204}.
Ensembl transtripts involved in fusion geneENST idsENST00000367467, ENST00000367469, 
ENST00000470750, 
ENST00000478761, 
ENST00000275248, ENST00000346085, 
ENST00000350026, ENST00000367148, 
Fusion gene scores for assessment (based on all fusion genes of FusionGDB 2.0)* DoF score9 X 6 X 6=32410 X 12 X 6=720
# samples 812
** MAII scorelog2(8/324*10)=-2.01792190799726
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
log2(12/720*10)=-2.58496250072116
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
Fusion gene context

PubMed: SASH1 [Title/Abstract] AND ARID1B [Title/Abstract] AND fusion [Title/Abstract]

Fusion neoantigen context

PubMed: SASH1 [Title/Abstract] AND ARID1B [Title/Abstract] AND neoantigen [Title/Abstract]

Most frequent breakpoint (based on all fusion genes of FusionGDB 2.0)SASH1(148711398)-ARID1B(157256600), # samples:3
ARID1B(157150555)-SASH1(148711270), # samples:2
Anticipated loss of major functional domain due to fusion event.ARID1B-SASH1 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.
ARID1B-SASH1 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.
SASH1-ARID1B 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.
SASH1-ARID1B 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.
SASH1-ARID1B 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.
SASH1-ARID1B 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
HgeneSASH1

GO:0000209

protein polyubiquitination

23776175

HgeneSASH1

GO:0010595

positive regulation of endothelial cell migration

23776175

HgeneSASH1

GO:1900044

regulation of protein K63-linked ubiquitination

23776175

HgeneSASH1

GO:1902498

regulation of protein autoubiquitination

23776175



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/chr6:148711398/chr6:157256600)
- 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 SASH1 (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 ARID1B (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)
ENST00000367469SASH1chr6148711398+ENST00000350026ARID1Bchr6157256600+62862032650261666
ENST00000367469SASH1chr6148711398+ENST00000346085ARID1Bchr6157256600+79152032650261666
ENST00000367469SASH1chr6148711398+ENST00000367148ARID1Bchr6157256600+65622032651851719
ENST00000367469SASH1chr6148711398+ENST00000275248ARID1Bchr6157256600+65622032651851719
ENST00000367467SASH1chr6148711398+ENST00000350026ARID1Bchr6157256600+684376015755831808
ENST00000367467SASH1chr6148711398+ENST00000346085ARID1Bchr6157256600+847276015755831808
ENST00000367467SASH1chr6148711398+ENST00000367148ARID1Bchr6157256600+711976015757421861
ENST00000367467SASH1chr6148711398+ENST00000275248ARID1Bchr6157256600+711976015757421861

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
ENST00000367469ENST00000350026SASH1chr6148711398+ARID1Bchr6157256600+0.0027460260.99725395
ENST00000367469ENST00000346085SASH1chr6148711398+ARID1Bchr6157256600+0.0007741770.99922585
ENST00000367469ENST00000367148SASH1chr6148711398+ARID1Bchr6157256600+0.0025385890.99746144
ENST00000367469ENST00000275248SASH1chr6148711398+ARID1Bchr6157256600+0.0025385890.99746144
ENST00000367467ENST00000350026SASH1chr6148711398+ARID1Bchr6157256600+0.0035808440.9964192
ENST00000367467ENST00000346085SASH1chr6148711398+ARID1Bchr6157256600+0.0012094390.99879056
ENST00000367467ENST00000367148SASH1chr6148711398+ARID1Bchr6157256600+0.0034944660.9965056
ENST00000367467ENST00000275248SASH1chr6148711398+ARID1Bchr6157256600+0.0034944660.9965056

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 SASH1-ARID1B

check button +/-13 AA sequence from the breakpoints of the fusion protein sequences.
HgeneHchrHbpTgeneTchrTbpLength(fusion protein)BP in fusion proteinPeptide
SASH1chr6148711398ARID1Bchr615725660020359ELRKRRVSQDLEVDMSQEGYGTRSQP
SASH1chr6148711398ARID1Bchr6157256600760201ELRKRRVSQDLEVDMSQEGYGTRSQP

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Potential FusionNeoAntigen Information of SASH1-ARID1B 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.
SASH1-ARID1B_148711398_157256600.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)
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B35:08EVDMSQEGY0.91440.64351120
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B44:03LEVDMSQEGY0.99480.93521020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B18:01LEVDMSQEGY0.93490.73021020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B27:07RRVSQDLEVDM0.99990.5988415
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B15:31EVDMSQEGY0.83190.64071120
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B35:20EVDMSQEGY0.77620.73361120
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B44:13LEVDMSQEGY0.99480.93521020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B44:07LEVDMSQEGY0.99480.93521020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B44:26LEVDMSQEGY0.99480.93521020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B15:53LEVDMSQEGY0.96920.76341020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B18:04LEVDMSQEGY0.94770.74051020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B18:08LEVDMSQEGY0.94010.70031020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B18:05LEVDMSQEGY0.93490.73021020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B18:06LEVDMSQEGY0.93130.73361020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B18:11LEVDMSQEGY0.92980.68951020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B18:03LEVDMSQEGY0.92020.70761020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B35:20LEVDMSQEGY0.8480.80961020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B48:02LEVDMSQEGY0.68990.76441020
SASH1-ARID1Bchr6148711398chr6157256600760HLA-B27:06RRVSQDLEVDM0.99990.5524415

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Potential FusionNeoAntigen Information of SASH1-ARID1B 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.
SASH1-ARID1B_148711398_157256600.msa

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)
SASH1-ARID1Bchr6148711398chr6157256600760DRB1-0413SQDLEVDMSQEGYGT722
SASH1-ARID1Bchr6148711398chr6157256600760DRB1-0422SQDLEVDMSQEGYGT722
SASH1-ARID1Bchr6148711398chr6157256600760DRB1-0422VSQDLEVDMSQEGYG621
SASH1-ARID1Bchr6148711398chr6157256600760DRB1-0422QDLEVDMSQEGYGTR823
SASH1-ARID1Bchr6148711398chr6157256600760DRB1-0422RVSQDLEVDMSQEGY520
SASH1-ARID1Bchr6148711398chr6157256600760DRB1-0472SQDLEVDMSQEGYGT722
SASH1-ARID1Bchr6148711398chr6157256600760DRB1-0472VSQDLEVDMSQEGYG621

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Fusion breakpoint peptide structures of SASH1-ARID1B

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
10283VSQDLEVDMSQEGYSASH1ARID1Bchr6148711398chr6157256600760

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Filtering FusionNeoAntigens Through Checking the Interaction with HLAs in 3D of SASH1-ARID1B

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-B14:023BVN10283VSQDLEVDMSQEGY-7.9962-8.1096
HLA-B14:023BVN10283VSQDLEVDMSQEGY-5.70842-6.74372
HLA-B52:013W3910283VSQDLEVDMSQEGY-6.83737-6.95077
HLA-B52:013W3910283VSQDLEVDMSQEGY-4.4836-5.5189
HLA-A11:014UQ210283VSQDLEVDMSQEGY-10.0067-10.1201
HLA-A11:014UQ210283VSQDLEVDMSQEGY-9.03915-10.0745
HLA-A24:025HGA10283VSQDLEVDMSQEGY-6.56204-6.67544
HLA-A24:025HGA10283VSQDLEVDMSQEGY-5.42271-6.45801
HLA-B44:053DX810283VSQDLEVDMSQEGY-7.85648-8.89178
HLA-B44:053DX810283VSQDLEVDMSQEGY-5.3978-5.5112
HLA-B35:011A1N10283VSQDLEVDMSQEGY-6.27422-6.38762
HLA-B35:011A1N10283VSQDLEVDMSQEGY-5.27424-6.30954
HLA-A02:016TDR10283VSQDLEVDMSQEGY-3.37154-4.40684

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Vaccine Design for the FusionNeoAntigens of SASH1-ARID1B

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
SASH1-ARID1Bchr6148711398chr61572566001020LEVDMSQEGYCTGGAAGTGGACATGTCTCAGGAAGGCTAT
SASH1-ARID1Bchr6148711398chr61572566001120EVDMSQEGYGAAGTGGACATGTCTCAGGAAGGCTAT
SASH1-ARID1Bchr6148711398chr6157256600415RRVSQDLEVDMCGGCGGGTTTCCCAGGACCTGGAAGTGGACATG

check button mRNA and peptide sequences of FusionNeoAntigens that have potential interaction with HLA-IIs.
Fusion geneHchrHbpTchrTbpStart in +/-13AAEnd in +/-13AAFusionNeoAntigen peptideFusionNEoAntigen RNA sequence
SASH1-ARID1Bchr6148711398chr6157256600520RVSQDLEVDMSQEGYCGGGTTTCCCAGGACCTGGAAGTGGACATGTCTCAGGAAGGCTAT
SASH1-ARID1Bchr6148711398chr6157256600621VSQDLEVDMSQEGYGGTTTCCCAGGACCTGGAAGTGGACATGTCTCAGGAAGGCTATGGA
SASH1-ARID1Bchr6148711398chr6157256600722SQDLEVDMSQEGYGTTCCCAGGACCTGGAAGTGGACATGTCTCAGGAAGGCTATGGAACT
SASH1-ARID1Bchr6148711398chr6157256600823QDLEVDMSQEGYGTRCAGGACCTGGAAGTGGACATGTCTCAGGAAGGCTATGGAACTAGA

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Information of the samples that have these potential fusion neoantigens of SASH1-ARID1B

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
BRCASASH1-ARID1Bchr6148711398ENST00000367467chr6157256600ENST00000275248TCGA-E9-A1NF-01A

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Potential target of CAR-T therapy development for SASH1-ARID1B

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 SASH1-ARID1B

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 SASH1-ARID1B

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
HgeneSASH1C2675711Dyschromatosis Universalis Hereditaria 16CTD_human;GENOMICS_ENGLAND;UNIPROT
HgeneSASH1C3492944Lentiginosis Profusa1ORPHANET