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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:ENSA-CTSS

Fusion Gene and Fusion Protein Summary

check button Fusion gene summary
Fusion partner gene informationFusion gene name: ENSA-CTSS
FusionPDB ID: 26663
FusionGDB2.0 ID: 26663
HgeneTgene
Gene symbol

ENSA

CTSS

Gene ID

2029

1520

Gene nameendosulfine alphacathepsin S
SynonymsARPP-19e-
Cytomap

1q21.3

1q21.3

Type of geneprotein-codingprotein-coding
Descriptionalpha-endosulfinecathepsin S
Modification date2020031320200329
UniProtAcc

O43768

Main function of 5'-partner protein: FUNCTION: Protein phosphatase inhibitor that specifically inhibits protein phosphatase 2A (PP2A) during mitosis. When phosphorylated at Ser-67 during mitosis, specifically interacts with PPP2R2D (PR55-delta) and inhibits its activity, leading to inactivation of PP2A, an essential condition to keep cyclin-B1-CDK1 activity high during M phase (By similarity). Also acts as a stimulator of insulin secretion by interacting with sulfonylurea receptor (ABCC8), thereby preventing sulfonylurea from binding to its receptor and reducing K(ATP) channel currents. {ECO:0000250, ECO:0000269|PubMed:9653196}.

P25774

Main function of 5'-partner protein: FUNCTION: Thiol protease. Key protease responsible for the removal of the invariant chain from MHC class II molecules and MHC class II antigen presentation (PubMed:30612035). The bond-specificity of this proteinase is in part similar to the specificities of cathepsin L. {ECO:0000269|PubMed:30612035}.
Ensembl transtripts involved in fusion geneENST idsENST00000271690, ENST00000339643, 
ENST00000361532, ENST00000361631, 
ENST00000369009, ENST00000369014, 
ENST00000369016, ENST00000503241, 
ENST00000513281, ENST00000354702, 
ENST00000356527, ENST00000362052, 
ENST00000503345, 
ENST00000480760, 
ENST00000368985, ENST00000448301, 
Fusion gene scores for assessment (based on all fusion genes of FusionGDB 2.0)* DoF score13 X 11 X 6=85814 X 15 X 9=1890
# samples 1719
** MAII scorelog2(17/858*10)=-2.33544290136184
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
log2(19/1890*10)=-3.31431491077749
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
Fusion gene context

PubMed: ENSA [Title/Abstract] AND CTSS [Title/Abstract] AND fusion [Title/Abstract]

Fusion neoantigen context

PubMed: ENSA [Title/Abstract] AND CTSS [Title/Abstract] AND neoantigen [Title/Abstract]

Most frequent breakpoint (based on all fusion genes of FusionGDB 2.0)ENSA(150599943)-CTSS(150727626), # samples:1
ENSA(150599942)-CTSS(150727626), # samples:1
ENSA(150598117)-CTSS(150737240), # 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
HgeneENSA

GO:0050796

regulation of insulin secretion

9653196

TgeneCTSS

GO:0006508

proteolysis

12788072|22864553

TgeneCTSS

GO:0010447

response to acidic pH

22864553

TgeneCTSS

GO:0016485

protein processing

22864553

TgeneCTSS

GO:0030574

collagen catabolic process

22952693

TgeneCTSS

GO:0034769

basement membrane disassembly

22952693

TgeneCTSS

GO:0048002

antigen processing and presentation of peptide antigen

8612130

TgeneCTSS

GO:0051603

proteolysis involved in cellular protein catabolic process

22952693

TgeneCTSS

GO:2001259

positive regulation of cation channel activity

22864553



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/chr1:150599943/chr1:150727626)
- 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 ENSA (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 CTSS (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)
ENST00000369016ENSAchr1150599943-ENST00000368985CTSSchr1150727626-3876279181025335
ENST00000369014ENSAchr1150599943-ENST00000368985CTSSchr1150727626-3906309481055335
ENST00000339643ENSAchr1150599943-ENST00000368985CTSSchr1150727626-3886289281035335
ENST00000271690ENSAchr1150599943-ENST00000368985CTSSchr1150727626-3887290291036335
ENST00000503241ENSAchr1150599943-ENST00000368985CTSSchr1150727626-3869272111018335
ENST00000361532ENSAchr1150599943-ENST00000368985CTSSchr1150727626-380320635952305
ENST00000361631ENSAchr1150599943-ENST00000368985CTSSchr1150727626-379119423940305
ENST00000513281ENSAchr1150599943-ENST00000368985CTSSchr1150727626-377918211928305
ENST00000369016ENSAchr1150599942-ENST00000368985CTSSchr1150727626-3876279181025335
ENST00000369014ENSAchr1150599942-ENST00000368985CTSSchr1150727626-3906309481055335
ENST00000339643ENSAchr1150599942-ENST00000368985CTSSchr1150727626-3886289281035335
ENST00000271690ENSAchr1150599942-ENST00000368985CTSSchr1150727626-3887290291036335
ENST00000503241ENSAchr1150599942-ENST00000368985CTSSchr1150727626-3869272111018335
ENST00000361532ENSAchr1150599942-ENST00000368985CTSSchr1150727626-380320635952305
ENST00000361631ENSAchr1150599942-ENST00000368985CTSSchr1150727626-379119423940305
ENST00000513281ENSAchr1150599942-ENST00000368985CTSSchr1150727626-377918211928305

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
ENST00000369016ENST00000368985ENSAchr1150599943-CTSSchr1150727626-0.0003636310.9996364
ENST00000369014ENST00000368985ENSAchr1150599943-CTSSchr1150727626-0.0003819220.99961805
ENST00000339643ENST00000368985ENSAchr1150599943-CTSSchr1150727626-0.0003702690.99962974
ENST00000271690ENST00000368985ENSAchr1150599943-CTSSchr1150727626-0.0003705860.9996294
ENST00000503241ENST00000368985ENSAchr1150599943-CTSSchr1150727626-0.0003560040.99964404
ENST00000361532ENST00000368985ENSAchr1150599943-CTSSchr1150727626-0.000555520.9994444
ENST00000361631ENST00000368985ENSAchr1150599943-CTSSchr1150727626-0.0005681190.9994319
ENST00000513281ENST00000368985ENSAchr1150599943-CTSSchr1150727626-0.000564840.9994351
ENST00000369016ENST00000368985ENSAchr1150599942-CTSSchr1150727626-0.0003636310.9996364
ENST00000369014ENST00000368985ENSAchr1150599942-CTSSchr1150727626-0.0003819220.99961805
ENST00000339643ENST00000368985ENSAchr1150599942-CTSSchr1150727626-0.0003702690.99962974
ENST00000271690ENST00000368985ENSAchr1150599942-CTSSchr1150727626-0.0003705860.9996294
ENST00000503241ENST00000368985ENSAchr1150599942-CTSSchr1150727626-0.0003560040.99964404
ENST00000361532ENST00000368985ENSAchr1150599942-CTSSchr1150727626-0.000555520.9994444
ENST00000361631ENST00000368985ENSAchr1150599942-CTSSchr1150727626-0.0005681190.9994319
ENST00000513281ENST00000368985ENSAchr1150599942-CTSSchr1150727626-0.000564840.9994351

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 ENSA-CTSS

check button +/-13 AA sequence from the breakpoints of the fusion protein sequences.
HgeneHchrHbpTgeneTchrTbpLength(fusion protein)BP in fusion proteinPeptide
ENSAchr1150599942CTSSchr115072762618257GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599942CTSSchr115072762619457GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599942CTSSchr115072762620657GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599942CTSSchr115072762627287GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599942CTSSchr115072762627987GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599942CTSSchr115072762628987GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599942CTSSchr115072762629087GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599942CTSSchr115072762630987GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599943CTSSchr115072762618257GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599943CTSSchr115072762619457GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599943CTSSchr115072762620657GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599943CTSSchr115072762627287GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599943CTSSchr115072762627987GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599943CTSSchr115072762628987GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599943CTSSchr115072762629087GGSDFLMKRLQKGTSEEVMSLMSSLR
ENSAchr1150599943CTSSchr115072762630987GGSDFLMKRLQKGTSEEVMSLMSSLR

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Potential FusionNeoAntigen Information of ENSA-CTSS 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.
ENSA-CTSS_150599942_150727626.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)
ENSA-CTSSchr1150599942chr1150727626290HLA-A02:38GTSEEVMSL0.96940.73941221
ENSA-CTSSchr1150599942chr1150727626290HLA-A02:21GTSEEVMSL0.90960.70921221
ENSA-CTSSchr1150599942chr1150727626290HLA-A02:20GTSEEVMSL0.79220.59291221
ENSA-CTSSchr1150599942chr1150727626290HLA-B13:02LQKGTSEEV0.64630.9654918
ENSA-CTSSchr1150599942chr1150727626290HLA-B52:01LQKGTSEEV0.0250.9922918
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:01LQKGTSEEVM0.99950.9273919
ENSA-CTSSchr1150599942chr1150727626290HLA-B13:02RLQKGTSEEV0.34130.9399818
ENSA-CTSSchr1150599942chr1150727626290HLA-C15:06GTSEEVMSL0.99910.9311221
ENSA-CTSSchr1150599942chr1150727626290HLA-C15:04GTSEEVMSL0.99890.93761221
ENSA-CTSSchr1150599942chr1150727626290HLA-C03:07GTSEEVMSL0.99890.98791221
ENSA-CTSSchr1150599942chr1150727626290HLA-C03:08GTSEEVMSL0.99850.91431221
ENSA-CTSSchr1150599942chr1150727626290HLA-C04:06GTSEEVMSL0.99230.96181221
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:04LQKGTSEEV0.91770.9257918
ENSA-CTSSchr1150599942chr1150727626290HLA-C02:06GTSEEVMSL0.66490.96721221
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:04LQKGTSEEVM0.99770.9554919
ENSA-CTSSchr1150599942chr1150727626290HLA-C15:05GTSEEVMSL0.99910.95041221
ENSA-CTSSchr1150599942chr1150727626290HLA-C15:02GTSEEVMSL0.9990.92881221
ENSA-CTSSchr1150599942chr1150727626290HLA-C15:09GTSEEVMSL0.99890.93761221
ENSA-CTSSchr1150599942chr1150727626290HLA-C03:06GTSEEVMSL0.98840.9911221
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:73LQKGTSEEV0.94250.9785918
ENSA-CTSSchr1150599942chr1150727626290HLA-C16:02GTSEEVMSL0.92460.99651221
ENSA-CTSSchr1150599942chr1150727626290HLA-A02:14GTSEEVMSL0.91270.56951221
ENSA-CTSSchr1150599942chr1150727626290HLA-A02:06GTSEEVMSL0.90960.70921221
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:30LQKGTSEEV0.84820.9722918
ENSA-CTSSchr1150599942chr1150727626290HLA-C17:01GTSEEVMSL0.57750.98461221
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:73GTSEEVMSL0.54990.98541221
ENSA-CTSSchr1150599942chr1150727626290HLA-B35:13GTSEEVMSL0.54760.86691221
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:30GTSEEVMSL0.48680.97681221
ENSA-CTSSchr1150599942chr1150727626290HLA-B40:21GTSEEVMSL0.10340.82831221
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:33LQKGTSEEVM0.99950.9273919
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:27LQKGTSEEVM0.99950.9488919
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:125LQKGTSEEVM0.99950.9273919
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:34LQKGTSEEVM0.99950.9273919
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:53LQKGTSEEVM0.99780.9291919
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:50LQKGTSEEVM0.99550.9074919
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:54LQKGTSEEVM0.9940.9088919
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:73LQKGTSEEVM0.99070.9862919
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:30LQKGTSEEVM0.98850.9804919
ENSA-CTSSchr1150599942chr1150727626290HLA-B15:12LQKGTSEEVM0.97780.9319919

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Potential FusionNeoAntigen Information of ENSA-CTSS 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.
ENSA-CTSS_150599942_150727626.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)
ENSA-CTSSchr1150599942chr1150727626290DRB1-1427GSDFLMKRLQKGTSE116

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Fusion breakpoint peptide structures of ENSA-CTSS

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
5941MKRLQKGTSEEVMSENSACTSSchr1150599942chr1150727626290

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Filtering FusionNeoAntigens Through Checking the Interaction with HLAs in 3D of ENSA-CTSS

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-B52:013W395941MKRLQKGTSEEVMS-6.96153-6.96153
HLA-B44:053DX85941MKRLQKGTSEEVMS-4.80407-4.80407

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Vaccine Design for the FusionNeoAntigens of ENSA-CTSS

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
ENSA-CTSSchr1150599942chr11507276261221GTSEEVMSLGGGACCAGTGAAGAAGTGATGTCTTTG
ENSA-CTSSchr1150599942chr1150727626818RLQKGTSEEVAGACTCCAGAAAGGGACCAGTGAAGAAGTG
ENSA-CTSSchr1150599942chr1150727626918LQKGTSEEVCTCCAGAAAGGGACCAGTGAAGAAGTG
ENSA-CTSSchr1150599942chr1150727626919LQKGTSEEVMCTCCAGAAAGGGACCAGTGAAGAAGTGATG

check button mRNA and peptide sequences of FusionNeoAntigens that have potential interaction with HLA-IIs.
Fusion geneHchrHbpTchrTbpStart in +/-13AAEnd in +/-13AAFusionNeoAntigen peptideFusionNEoAntigen RNA sequence
ENSA-CTSSchr1150599942chr1150727626116GSDFLMKRLQKGTSEGGCTCCGACTTCCTCATGAAGAGACTCCAGAAAGGGACCAGTGAA

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Information of the samples that have these potential fusion neoantigens of ENSA-CTSS

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
STADENSA-CTSSchr1150599942ENST00000271690chr1150727626ENST00000368985TCGA-D7-A6F0

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Potential target of CAR-T therapy development for ENSA-CTSS

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 ENSA-CTSS

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 ENSA-CTSS

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