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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:PFDN2-APOA2

Fusion Gene and Fusion Protein Summary

check button Fusion gene summary
Fusion partner gene informationFusion gene name: PFDN2-APOA2
FusionPDB ID: 64397
FusionGDB2.0 ID: 64397
HgeneTgene
Gene symbol

PFDN2

APOA2

Gene ID

5202

336

Gene nameprefoldin subunit 2apolipoprotein A2
SynonymsPFD2Apo-AII|ApoA-II|apoAII
Cytomap

1q23.3

1q23.3

Type of geneprotein-codingprotein-coding
Descriptionprefoldin subunit 2prefoldin 2apolipoprotein A-II
Modification date2020031320200327
UniProtAcc.

P02652

Main function of 5'-partner protein: FUNCTION: May stabilize HDL (high density lipoprotein) structure by its association with lipids, and affect the HDL metabolism.
Ensembl transtripts involved in fusion geneENST idsENST00000368010, ENST00000468311, 
ENST00000463812, ENST00000464492, 
ENST00000470459, ENST00000468465, 
ENST00000491350, ENST00000367990, 
Fusion gene scores for assessment (based on all fusion genes of FusionGDB 2.0)* DoF score8 X 6 X 6=28813 X 11 X 6=858
# samples 1115
** MAII scorelog2(11/288*10)=-1.38856528791765
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
log2(15/858*10)=-2.51601514700366
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
Fusion gene context

PubMed: PFDN2 [Title/Abstract] AND APOA2 [Title/Abstract] AND fusion [Title/Abstract]

Fusion neoantigen context

PubMed: PFDN2 [Title/Abstract] AND APOA2 [Title/Abstract] AND neoantigen [Title/Abstract]

Most frequent breakpoint (based on all fusion genes of FusionGDB 2.0)PFDN2(161087742)-APOA2(161192840), # samples:2
Anticipated loss of major functional domain due to fusion event.PFDN2-APOA2 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.
PFDN2-APOA2 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.
PFDN2-APOA2 seems lost the major protein functional domain in Hgene partner, which is a cell metabolism gene due to the frame-shifted ORF.
PFDN2-APOA2 seems lost the major protein functional domain in Hgene partner, which is a essential gene due to the frame-shifted ORF.
PFDN2-APOA2 seems lost the major protein functional domain in Tgene partner, which is a cell metabolism gene due to the frame-shifted 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
HgenePFDN2

GO:0051495

positive regulation of cytoskeleton organization

16876117

TgeneAPOA2

GO:0002740

negative regulation of cytokine secretion involved in immune response

12458630

TgeneAPOA2

GO:0006656

phosphatidylcholine biosynthetic process

14967812

TgeneAPOA2

GO:0009395

phospholipid catabolic process

14967812

TgeneAPOA2

GO:0009749

response to glucose

14988251

TgeneAPOA2

GO:0010873

positive regulation of cholesterol esterification

14967812

TgeneAPOA2

GO:0010903

negative regulation of very-low-density lipoprotein particle remodeling

14967812

TgeneAPOA2

GO:0018158

protein oxidation

12576517

TgeneAPOA2

GO:0018206

peptidyl-methionine modification

12576517

TgeneAPOA2

GO:0031647

regulation of protein stability

14967812

TgeneAPOA2

GO:0033344

cholesterol efflux

11162594

TgeneAPOA2

GO:0033700

phospholipid efflux

11162594

TgeneAPOA2

GO:0034370

triglyceride-rich lipoprotein particle remodeling

14967812

TgeneAPOA2

GO:0034374

low-density lipoprotein particle remodeling

8106353

TgeneAPOA2

GO:0034375

high-density lipoprotein particle remodeling

8106353|14967812

TgeneAPOA2

GO:0034380

high-density lipoprotein particle assembly

218942

TgeneAPOA2

GO:0034384

high-density lipoprotein particle clearance

10764676

TgeneAPOA2

GO:0042632

cholesterol homeostasis

14967812

TgeneAPOA2

GO:0043691

reverse cholesterol transport

14967812

TgeneAPOA2

GO:0045416

positive regulation of interleukin-8 biosynthetic process

11591715

TgeneAPOA2

GO:0046340

diacylglycerol catabolic process

14967812

TgeneAPOA2

GO:0050766

positive regulation of phagocytosis

20495215

TgeneAPOA2

GO:0050821

protein stabilization

20495215

TgeneAPOA2

GO:0050995

negative regulation of lipid catabolic process

14967812

TgeneAPOA2

GO:0050996

positive regulation of lipid catabolic process

8640403

TgeneAPOA2

GO:0060192

negative regulation of lipase activity

14967812

TgeneAPOA2

GO:0060621

negative regulation of cholesterol import

10764676

TgeneAPOA2

GO:0060695

negative regulation of cholesterol transporter activity

8106353



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/chr1:161087742/chr1:161192840)
- 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 PFDN2 (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 APOA2 (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)
ENST00000368010PFDN2chr1161087741-ENST00000367990APOA2chr1161192312-3911604727776
ENST00000368010PFDN2chr1161087741-ENST00000468465APOA2chr1161192312-3911604727776
ENST00000368010PFDN2chr1161087741-ENST00000463812APOA2chr1161192312-3911604727776
ENST00000368010PFDN2chr1161087741-ENST00000491350APOA2chr1161192312-3641604727776
ENST00000368010PFDN2chr1161087742-ENST00000367990APOA2chr1161192312-3911604727776
ENST00000368010PFDN2chr1161087742-ENST00000468465APOA2chr1161192312-3911604727776
ENST00000368010PFDN2chr1161087742-ENST00000463812APOA2chr1161192312-3911604727776
ENST00000368010PFDN2chr1161087742-ENST00000491350APOA2chr1161192312-3641604727776

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
ENST00000368010ENST00000367990PFDN2chr1161087741-APOA2chr1161192312-0.458635060.54136497
ENST00000368010ENST00000468465PFDN2chr1161087741-APOA2chr1161192312-0.458635060.54136497
ENST00000368010ENST00000463812PFDN2chr1161087741-APOA2chr1161192312-0.458635060.54136497
ENST00000368010ENST00000491350PFDN2chr1161087741-APOA2chr1161192312-0.448935750.5510642
ENST00000368010ENST00000367990PFDN2chr1161087742-APOA2chr1161192312-0.458635060.54136497
ENST00000368010ENST00000468465PFDN2chr1161087742-APOA2chr1161192312-0.458635060.54136497
ENST00000368010ENST00000463812PFDN2chr1161087742-APOA2chr1161192312-0.458635060.54136497
ENST00000368010ENST00000491350PFDN2chr1161087742-APOA2chr1161192312-0.448935750.5510642

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 PFDN2-APOA2

check button +/-13 AA sequence from the breakpoints of the fusion protein sequences.
HgeneHchrHbpTgeneTchrTbpLength(fusion protein)BP in fusion proteinPeptide
PFDN2chr1161087741APOA2chr116119231216036AAGAARGRGRCPQSRSYFEKSKEQLT
PFDN2chr1161087742APOA2chr116119231216036AAGAARGRGRCPQSRSYFEKSKEQLT

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Potential FusionNeoAntigen Information of PFDN2-APOA2 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.
PFDN2-APOA2_161087741_161192312.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)
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:02GRCPQSRSY0.9990.5532817
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:05GRCPQSRSY0.99890.8555817
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:04GRCPQSRSY0.99880.6825817
PFDN2-APOA2chr1161087741chr1161192312160HLA-B15:03GRCPQSRSY0.41010.638817
PFDN2-APOA2chr1161087741chr1161192312160HLA-B15:18GRCPQSRSY0.32720.5643817
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:02GRCPQSRSYF0.99990.601818
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:04GRCPQSRSYF0.99990.7307818
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:05GRCPQSRSYF0.99990.8654818
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:05RGRCPQSRSY0.98890.7863717
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:02RGRCPQSRSY0.98550.5497717
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:04RGRCPQSRSY0.98230.7422717
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:02GRGRCPQSRSY0.99980.5539617
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:14GRCPQSRSY0.99360.7406817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:95GRCPQSRSY0.98580.6693817
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:03GRCPQSRSY0.98490.8691817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:27GRCPQSRSY0.97130.931817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:05GRCPQSRSY0.94230.9149817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:46GRCPQSRSY0.89130.8174817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:19GRCPQSRSY0.88710.6663817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:10GRCPQSRSY0.82060.9072817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:80GRCPQSRSY0.81830.8716817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:67GRCPQSRSY0.81830.8716817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C01:17RCPQSRSYF0.19150.9562918
PFDN2-APOA2chr1161087741chr1161192312160HLA-C01:30RCPQSRSYF0.05570.9539918
PFDN2-APOA2chr1161087741chr1161192312160HLA-C12:16GRCPQSRSY0.04610.9404817
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:03GRCPQSRSYF0.99820.8762818
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:03RGRCPQSRSY0.88170.7952717
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:10GRCPQSRSY0.99870.827817
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:08GRCPQSRSY0.99860.6749817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:01GRCPQSRSY0.99090.6544817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:17GRCPQSRSY0.95350.9119817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:02GRCPQSRSY0.81830.8716817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:22GRCPQSRSY0.79440.7154817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C06:08GRCPQSRSY0.43320.9811817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C01:02RCPQSRSYF0.18420.9569918
PFDN2-APOA2chr1161087741chr1161192312160HLA-C01:03RCPQSRSYF0.13650.8818918
PFDN2-APOA2chr1161087741chr1161192312160HLA-B15:54GRCPQSRSY0.12750.7472817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C06:02GRCPQSRSY0.00740.9846817
PFDN2-APOA2chr1161087741chr1161192312160HLA-C06:17GRCPQSRSY0.00740.9846817
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:10GRCPQSRSYF0.99990.8438818
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:08GRCPQSRSYF0.99990.7197818
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:06GRCPQSRSYF0.99970.7323818
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:09GRCPQSRSYF0.99940.8143818
PFDN2-APOA2chr1161087741chr1161192312160HLA-B27:10RGRCPQSRSY0.98960.854717
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:22RGRCPQSRSY0.97380.7281717
PFDN2-APOA2chr1161087741chr1161192312160HLA-B15:68RGRCPQSRSY0.94630.5934717
PFDN2-APOA2chr1161087741chr1161192312160HLA-C07:01RGRCPQSRSY0.93290.6391717

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Potential FusionNeoAntigen Information of PFDN2-APOA2 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 PFDN2-APOA2

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
3080GRGRCPQSRSYFEKPFDN2APOA2chr1161087741chr1161192312160

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Filtering FusionNeoAntigens Through Checking the Interaction with HLAs in 3D of PFDN2-APOA2

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-B14:023BVN3080GRGRCPQSRSYFEK-7.9962-8.1096
HLA-B14:023BVN3080GRGRCPQSRSYFEK-5.70842-6.74372
HLA-B52:013W393080GRGRCPQSRSYFEK-6.83737-6.95077
HLA-B52:013W393080GRGRCPQSRSYFEK-4.4836-5.5189
HLA-A11:014UQ23080GRGRCPQSRSYFEK-10.0067-10.1201
HLA-A11:014UQ23080GRGRCPQSRSYFEK-9.03915-10.0745
HLA-A24:025HGA3080GRGRCPQSRSYFEK-6.56204-6.67544
HLA-A24:025HGA3080GRGRCPQSRSYFEK-5.42271-6.45801
HLA-B44:053DX83080GRGRCPQSRSYFEK-7.85648-8.89178
HLA-B44:053DX83080GRGRCPQSRSYFEK-5.3978-5.5112
HLA-A02:016TDR3080GRGRCPQSRSYFEK-3.37154-4.40684

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Vaccine Design for the FusionNeoAntigens of PFDN2-APOA2

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
PFDN2-APOA2chr1161087741chr1161192312617GRGRCPQSRSYGGGGCGGTGTCCGCAGAGCAGGTCTTACTTTGA
PFDN2-APOA2chr1161087741chr1161192312717RGRCPQSRSYGCGGTGTCCGCAGAGCAGGTCTTACTTTGA
PFDN2-APOA2chr1161087741chr1161192312817GRCPQSRSYGTGTCCGCAGAGCAGGTCTTACTTTGA
PFDN2-APOA2chr1161087741chr1161192312818GRCPQSRSYFGTGTCCGCAGAGCAGGTCTTACTTTGAAAA
PFDN2-APOA2chr1161087741chr1161192312918RCPQSRSYFTCCGCAGAGCAGGTCTTACTTTGAAAA

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 PFDN2-APOA2

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
LIHCPFDN2-APOA2chr1161087741ENST00000368010chr1161192312ENST00000367990TCGA-CC-5263

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Potential target of CAR-T therapy development for PFDN2-APOA2

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 PFDN2-APOA2

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 PFDN2-APOA2

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