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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:LPCAT2-CACTIN

Fusion Gene and Fusion Protein Summary

check button Fusion gene summary
Fusion partner gene informationFusion gene name: LPCAT2-CACTIN
FusionPDB ID: 49498
FusionGDB2.0 ID: 49498
HgeneTgene
Gene symbol

LPCAT2

CACTIN

Gene ID

54947

58509

Gene namelysophosphatidylcholine acyltransferase 2cactin, spliceosome C complex subunit
SynonymsAGPAT11|AYTL1|LysoPAFATC19orf29|NY-REN-24|fSAPc
Cytomap

16q12.2

19p13.3

Type of geneprotein-codingprotein-coding
Descriptionlysophosphatidylcholine acyltransferase 21-AGP acyltransferase 111-AGPAT 111-acylglycerol-3-phosphate O-acyltransferase 111-acylglycerophosphocholine O-acyltransferase1-alkylglycerophosphocholine O-acetyltransferaseLPAAT-alphaLPC acyltransferase 2cactinNY REN 24 antigenfunctional spliceosome-associated protein crenal carcinoma antigen NY-REN-24
Modification date2020031320200313
UniProtAcc

Q7L5N7

Main function of 5'-partner protein: FUNCTION: Exhibits both acyltransferase and acetyltransferase activities (PubMed:17182612, PubMed:20363836, PubMed:21498505). Catalyzes the conversion of lysophosphatidylcholine (1-acyl-sn-glycero-3-phosphocholine or LPC) into phosphatidylcholine (1,2-diacyl-sn-glycero-3-phosphocholine or PC) (PubMed:21498505). Catalyzes the conversion 1-acyl-sn-glycerol-3-phosphate (lysophosphatidic acid or LPA) into 1,2-diacyl-sn-glycerol-3-phosphate (phosphatidic acid or PA) by incorporating an acyl moiety at the sn-2 position of the glycerol backbone (PubMed:20363836). Involved in platelet-activating factor (PAF) biosynthesis by catalyzing the conversion of the PAF precursor, 1-O-alkyl-sn-glycero-3-phosphocholine (lyso-PAF) into 1-O-alkyl-2-acetyl-sn-glycero-3-phosphocholine (PAF) (PubMed:17182612). Also converts lyso-PAF to 1-O-alkyl-2-acyl-sn-glycero-3-phosphocholine (PC), a major component of cell membranes and a PAF precursor (By similarity). Under resting conditions, acyltransferase activity is preferred (By similarity). Upon acute inflammatory stimulus, acetyltransferase activity is enhanced and PAF synthesis increases (By similarity). Involved in the regulation of lipid droplet number and size (PubMed:25491198). {ECO:0000250|UniProtKB:Q8BYI6, ECO:0000269|PubMed:17182612, ECO:0000269|PubMed:20363836, ECO:0000269|PubMed:21498505, ECO:0000269|PubMed:25491198}.

C19orf29,CACTIN

Main function of 5'-partner protein: 758
Ensembl transtripts involved in fusion geneENST idsENST00000262134, ENST00000565056, 
ENST00000221899, ENST00000248420, 
ENST00000429344, 
Fusion gene scores for assessment (based on all fusion genes of FusionGDB 2.0)* DoF score6 X 7 X 4=1682 X 2 X 2=8
# samples 72
** MAII scorelog2(7/168*10)=-1.26303440583379
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
log2(2/8*10)=1.32192809488736
Fusion gene context

PubMed: LPCAT2 [Title/Abstract] AND CACTIN [Title/Abstract] AND fusion [Title/Abstract]

Fusion neoantigen context

PubMed: LPCAT2 [Title/Abstract] AND CACTIN [Title/Abstract] AND neoantigen [Title/Abstract]

Most frequent breakpoint (based on all fusion genes of FusionGDB 2.0)LPCAT2(55571544)-CACTIN(3620270), # samples:2
Anticipated loss of major functional domain due to fusion event.LPCAT2-CACTIN 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.
LPCAT2-CACTIN 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.
LPCAT2-CACTIN 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.
LPCAT2-CACTIN 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
HgeneLPCAT2

GO:0036151

phosphatidylcholine acyl-chain remodeling

21498505

TgeneCACTIN

GO:0032088

negative regulation of NF-kappaB transcription factor activity

20829348

TgeneCACTIN

GO:0032717

negative regulation of interleukin-8 production

20829348

TgeneCACTIN

GO:0032720

negative regulation of tumor necrosis factor production

20829348

TgeneCACTIN

GO:0034122

negative regulation of toll-like receptor signaling pathway

20829348

TgeneCACTIN

GO:0043124

negative regulation of I-kappaB kinase/NF-kappaB signaling

26363554

TgeneCACTIN

GO:0071222

cellular response to lipopolysaccharide

20829348

TgeneCACTIN

GO:0071347

cellular response to interleukin-1

20829348

TgeneCACTIN

GO:0071356

cellular response to tumor necrosis factor

20829348



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/chr16:55571544/chr19:3620270)
- 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 LPCAT2 (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 CACTIN (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)
ENST00000262134LPCAT2chr1655571544+ENST00000429344CACTINchr193620270-385710361332574813
ENST00000262134LPCAT2chr1655571544+ENST00000248420CACTINchr193620270-291410361332574813
ENST00000262134LPCAT2chr1655571544+ENST00000221899CACTINchr193620270-310610361333105991

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
ENST00000262134ENST00000429344LPCAT2chr1655571544+CACTINchr193620270-0.0067813390.9932187
ENST00000262134ENST00000248420LPCAT2chr1655571544+CACTINchr193620270-0.0072694230.99273056
ENST00000262134ENST00000221899LPCAT2chr1655571544+CACTINchr193620270-0.003549820.9964502

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 LPCAT2-CACTIN

check button +/-13 AA sequence from the breakpoints of the fusion protein sequences.
HgeneHchrHbpTgeneTchrTbpLength(fusion protein)BP in fusion proteinPeptide
LPCAT2chr1655571544CACTINchr1936202701036301LTFCQLFTKVEVEVKQLRLEREREKA

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Potential FusionNeoAntigen Information of LPCAT2-CACTIN 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.
LPCAT2-CACTIN_55571544_3620270.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)
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B18:01VEVEVKQL0.99710.7901917
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B39:13VEVEVKQL0.95870.8713917
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B39:13VEVKQLRL0.83440.8061119
LPCAT2-CACTINchr1655571544chr1936202701036HLA-A02:22QLFTKVEVEV0.99770.6132414
LPCAT2-CACTINchr1655571544chr1936202701036HLA-A02:13QLFTKVEVEV0.9970.695414
LPCAT2-CACTINchr1655571544chr1936202701036HLA-A02:27QLFTKVEVEV0.99620.6065414
LPCAT2-CACTINchr1655571544chr1936202701036HLA-A02:60QLFTKVEVEV0.99550.5033414
LPCAT2-CACTINchr1655571544chr1936202701036HLA-A02:11QLFTKVEVEV0.99540.5216414
LPCAT2-CACTINchr1655571544chr1936202701036HLA-A02:04QLFTKVEVEV0.98890.7036414
LPCAT2-CACTINchr1655571544chr1936202701036HLA-A02:38QLFTKVEVEV0.98560.6299414
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B44:03VEVEVKQLRL0.97890.8472919
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B40:04VEVEVKQL0.99980.6761917
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B40:04VEVKQLRL0.99940.67571119
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B18:06VEVEVKQL0.99740.8024917
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B18:05VEVEVKQL0.99710.7901917
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B18:11VEVEVKQL0.99610.8336917
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B18:03VEVEVKQL0.99490.778917
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B39:02VEVEVKQL0.97020.8719917
LPCAT2-CACTINchr1655571544chr1936202701036HLA-A02:03QLFTKVEVEV0.99870.7319414
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B40:04VEVEVKQLRL0.99610.6708919
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B44:26VEVEVKQLRL0.97890.8472919
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B44:07VEVEVKQLRL0.97890.8472919
LPCAT2-CACTINchr1655571544chr1936202701036HLA-B44:13VEVEVKQLRL0.97890.8472919

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Potential FusionNeoAntigen Information of LPCAT2-CACTIN 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.
LPCAT2-CACTIN_55571544_3620270.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)
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0301FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0303FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0303TKVEVEVKQLRLERE722
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0307FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0307LFTKVEVEVKQLRLE520
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0307TKVEVEVKQLRLERE722
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0313FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0315FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0315LFTKVEVEVKQLRLE520
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0318FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0320FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0322FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0324FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0328FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0330FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0332FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0334FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0336FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0344FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0346FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0348FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0350FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0352FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-0354FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-1107FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-1107LFTKVEVEVKQLRLE520
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-1107TKVEVEVKQLRLERE722
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-1327FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-1327LFTKVEVEVKQLRLE520
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-1361FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-1361LFTKVEVEVKQLRLE520
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-1371FTKVEVEVKQLRLER621
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-1371LFTKVEVEVKQLRLE520
LPCAT2-CACTINchr1655571544chr1936202701036DRB1-1421FTKVEVEVKQLRLER621

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Fusion breakpoint peptide structures of LPCAT2-CACTIN

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
2594FTKVEVEVKQLRLELPCAT2CACTINchr1655571544chr1936202701036

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Filtering FusionNeoAntigens Through Checking the Interaction with HLAs in 3D of LPCAT2-CACTIN

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-B14:023BVN2594FTKVEVEVKQLRLE-7.9962-8.1096
HLA-B14:023BVN2594FTKVEVEVKQLRLE-5.70842-6.74372
HLA-B52:013W392594FTKVEVEVKQLRLE-6.83737-6.95077
HLA-B52:013W392594FTKVEVEVKQLRLE-4.4836-5.5189
HLA-A11:014UQ22594FTKVEVEVKQLRLE-10.0067-10.1201
HLA-A11:014UQ22594FTKVEVEVKQLRLE-9.03915-10.0745
HLA-A24:025HGA2594FTKVEVEVKQLRLE-6.56204-6.67544
HLA-A24:025HGA2594FTKVEVEVKQLRLE-5.42271-6.45801
HLA-B44:053DX82594FTKVEVEVKQLRLE-7.85648-8.89178
HLA-B44:053DX82594FTKVEVEVKQLRLE-5.3978-5.5112
HLA-A02:016TDR2594FTKVEVEVKQLRLE-3.37154-4.40684

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Vaccine Design for the FusionNeoAntigens of LPCAT2-CACTIN

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
LPCAT2-CACTINchr1655571544chr1936202701119VEVKQLRLGTTGAGGTGAAGCAGCTGCGGCTG
LPCAT2-CACTINchr1655571544chr193620270414QLFTKVEVEVCAGCTCTTCACAAAGGTAGAAGTTGAGGTG
LPCAT2-CACTINchr1655571544chr193620270917VEVEVKQLGTAGAAGTTGAGGTGAAGCAGCTG
LPCAT2-CACTINchr1655571544chr193620270919VEVEVKQLRLGTAGAAGTTGAGGTGAAGCAGCTGCGGCTG

check button mRNA and peptide sequences of FusionNeoAntigens that have potential interaction with HLA-IIs.
Fusion geneHchrHbpTchrTbpStart in +/-13AAEnd in +/-13AAFusionNeoAntigen peptideFusionNEoAntigen RNA sequence
LPCAT2-CACTINchr1655571544chr193620270520LFTKVEVEVKQLRLECTCTTCACAAAGGTAGAAGTTGAGGTGAAGCAGCTGCGGCTGGAG
LPCAT2-CACTINchr1655571544chr193620270621FTKVEVEVKQLRLERTTCACAAAGGTAGAAGTTGAGGTGAAGCAGCTGCGGCTGGAGCGG
LPCAT2-CACTINchr1655571544chr193620270722TKVEVEVKQLRLEREACAAAGGTAGAAGTTGAGGTGAAGCAGCTGCGGCTGGAGCGGGAG

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Information of the samples that have these potential fusion neoantigens of LPCAT2-CACTIN

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
BRCALPCAT2-CACTINchr1655571544ENST00000262134chr193620270ENST00000221899TCGA-D8-A1XL-01A

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Potential target of CAR-T therapy development for LPCAT2-CACTIN

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
HgeneLPCAT2chr16:55571544chr19:3620270ENST00000262134+81458_78284545.0TransmembraneHelical%3B Signal-anchor for type II membrane protein

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 LPCAT2-CACTIN

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 LPCAT2-CACTIN

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