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 | Fusion Gene Summary |
| Fusion Gene ORF analysis |
| Fusion Genomic Features |
| Fusion Protein Features |
| Fusion Gene Sequence |
| Fusion Gene PPI analysis |
| Related Drugs |
| Related Diseases |
Fusion gene:IL4I1-KCNQ2 (FusionGDB2 ID:39549) |
Fusion Gene Summary for IL4I1-KCNQ2 |
 Fusion gene summary |
| Fusion gene information | Fusion gene name: IL4I1-KCNQ2 | Fusion gene ID: 39549 | Hgene | Tgene | Gene symbol | IL4I1 | KCNQ2 | Gene ID | 259307 | 3785 |
| Gene name | interleukin 4 induced 1 | potassium voltage-gated channel subfamily Q member 2 | |
| Synonyms | FIG1|LAAO|LAO | BFNC|EBN|EBN1|ENB1|HNSPC|KCNA11|KV7.2 | |
| Cytomap | 19q13.33 | 20q13.33 | |
| Type of gene | protein-coding | protein-coding | |
| Description | L-amino-acid oxidaseFig-1 proteinIL4-induced protein 1interleukin four induced 1 | potassium voltage-gated channel subfamily KQT member 2neuroblastoma-specific potassium channel subunit alpha KvLQT2potassium channel, voltage gated KQT-like subfamily Q, member 2voltage-gated potassium channel subunit Kv7.2 | |
| Modification date | 20200313 | 20200313 | |
| UniProtAcc | Q96RQ9 | O43526 | |
| Ensembl transtripts involved in fusion gene | ENST00000341114, ENST00000595948, ENST00000391826, | ENST00000344462, ENST00000354587, ENST00000357249, ENST00000359125, ENST00000359689, ENST00000360480, ENST00000370224, ENST00000344425, ENST00000482957, | |
| Fusion gene scores | * DoF score | 14 X 9 X 10=1260 | 3 X 3 X 2=18 |
| # samples | 16 | 3 | |
| ** MAII score | log2(16/1260*10)=-2.97727992349992 possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs). DoF>8 and MAII<0 | log2(3/18*10)=0.736965594166206 effective Gene in Pan-Cancer Fusion Genes (eGinPCFGs). DoF>8 and MAII>0 | |
| Context | PubMed: IL4I1 [Title/Abstract] AND KCNQ2 [Title/Abstract] AND fusion [Title/Abstract] | ||
| Most frequent breakpoint | IL4I1(50430951)-KCNQ2(62076717), # samples:3 | ||
| 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) |
| Gene ontology of each fusion partner gene with evidence of Inferred from Direct Assay (IDA) from Entrez |
| Partner | Gene | GO ID | GO term | PubMed ID |
| Tgene | KCNQ2 | GO:0071805 | potassium ion transmembrane transport | 9836639|27564677 |
| Fusion gene breakpoints across IL4I1 (5'-gene) * Click on the image to open the UCSC genome browser with custom track showing this image in a new window. |
| Fusion gene breakpoints across KCNQ2 (3'-gene) * Click on the image to open the UCSC genome browser with custom track showing this image in a new window. |
| Fusion gene information from two resources (ChiTars 5.0 and ChimerDB 4.0) * All genome coordinats were lifted-over on hg19. * Click on the break point to see the gene structure around the break point region using the UCSC Genome Browser. |
| Source | Disease | Sample | Hgene | Hchr | Hbp | Hstrand | Tgene | Tchr | Tbp | Tstrand |
| ChimerDB4 | BRCA | TCGA-A2-A3XW-01A | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
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Fusion Gene ORF analysis for IL4I1-KCNQ2 |
| Open reading frame (ORF) analsis of fusion genes based on Ensembl gene isoform structure. * Click on the break point to see the gene structure around the break point region using the UCSC Genome Browser. |
| ORF | Henst | Tenst | Hgene | Hchr | Hbp | Hstrand | Tgene | Tchr | Tbp | Tstrand |
| 5UTR-3CDS | ENST00000341114 | ENST00000344462 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000341114 | ENST00000354587 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000341114 | ENST00000357249 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000341114 | ENST00000359125 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000341114 | ENST00000359689 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000341114 | ENST00000360480 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000341114 | ENST00000370224 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000595948 | ENST00000344462 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000595948 | ENST00000354587 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000595948 | ENST00000357249 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000595948 | ENST00000359125 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000595948 | ENST00000359689 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000595948 | ENST00000360480 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-3CDS | ENST00000595948 | ENST00000370224 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-intron | ENST00000341114 | ENST00000344425 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-intron | ENST00000341114 | ENST00000482957 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-intron | ENST00000595948 | ENST00000344425 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| 5UTR-intron | ENST00000595948 | ENST00000482957 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| intron-3CDS | ENST00000391826 | ENST00000344462 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| intron-3CDS | ENST00000391826 | ENST00000354587 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| intron-3CDS | ENST00000391826 | ENST00000357249 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| intron-3CDS | ENST00000391826 | ENST00000359125 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| intron-3CDS | ENST00000391826 | ENST00000359689 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| intron-3CDS | ENST00000391826 | ENST00000360480 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| intron-3CDS | ENST00000391826 | ENST00000370224 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| intron-intron | ENST00000391826 | ENST00000344425 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| intron-intron | ENST00000391826 | ENST00000482957 | IL4I1 | chr19 | 50430951 | - | KCNQ2 | chr20 | 62076717 | - |
| ORFfinder result based on the fusion transcript sequence of in-frame fusion genes. |
| Henst | Tenst | Hgene | Hchr | Hbp | Hstrand | Tgene | Tchr | Tbp | Tstrand | Seq length (transcript) | BP loci (transcript) | Predicted start (transcript) | Predicted stop (transcript) | Seq length (amino acids) |
| DeepORF 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. |
| Henst | Tenst | Hgene | Hchr | Hbp | Hstrand | Tgene | Tchr | Tbp | Tstrand | No-coding score | Coding score |
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Fusion Genomic Features for IL4I1-KCNQ2 |
| FusionAI prediction of the potential fusion gene breakpoint based on the pre-mature RNA sequence context (+/- 5kb of individual partner genes, total 20kb length sequence). FusionAI is a fusion gene breakpoint classifier based on convolutional neural network by comparing the fusion positive and negative sequence context of ~ 20K fusion gene data. From here, we can have the relative potentency of the 20K genomic sequence how individual sequnce will be likely used as the gene fusion breakpoints. |
| Hgene | Hchr | Hbp | Hstrand | Tgene | Tchr | Tbp | Tstrand | 1-p | p (fusion gene breakpoint) |
| Distribution of 44 human genomic features loci across 20kb length fusion breakpoint regions. We integrated a total of 44 different types of human genomic feature loci information across five big categories including virus integration sites, repeats, structural variants, chromatin states, and gene expression regulation. More details are in help page. |
| Distribution of 44 human genomic features loci across 20kb length fusion breakpoint regions that are ovelapped with the top 1% feature importance score regions. More details are in help page. |
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Fusion Protein Features for IL4I1-KCNQ2 |
| Four levels of functional features of fusion genes Go to FGviewer search page for the most frequent breakpoint (https://ccsmweb.uth.edu/FGviewer/:50430951/:62076717) - 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. |
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| Main function of each fusion partner protein. (from UniProt) |
| Hgene | Tgene |
| IL4I1 | KCNQ2 |
| FUNCTION: Secreted L-amino-acid oxidase that acts as a key immunoregulator (PubMed:17356132, PubMed:32818467, PubMed:32866000). Has preference for L-aromatic amino acids: converts phenylalanine (Phe), tyrosine (Tyr) and tryptophan (Trp) to phenylpyruvic acid (PP), hydroxyphenylpyruvic acid (HPP), and indole-3-pyruvic acid (I3P), respectively (PubMed:17356132, PubMed:32818467, PubMed:32866000). Also has weak L-arginine oxidase activity (PubMed:26673964). Acts as a negative regulator of anti-tumor immunity by mediating Trp degradation via an indole pyruvate pathway that activates the transcription factor AHR (PubMed:32818467, PubMed:32866000). IL4I1-mediated Trp catabolism generates I3P, giving rise to indole metabolites (indole-3-acetic acid (IAA) and indole-3-aldehyde (I3A)) and kynurenic acid, which act as ligands for AHR, a ligand-activated transcription factor that plays important roles in immunity and cancer (PubMed:32818467, PubMed:32866000). AHR activation by indoles following IL4I1-mediated Trp degradation enhances tumor progression by promoting cancer cell motility and suppressing adaptive immunity (PubMed:32818467). Also has an immunoregulatory function in some immune cells, probably by mediating Trp degradation and promoting downstream AHR activation: inhibits T-cell activation and proliferation, promotes the differentiation of naive CD4(+) T-cells into FOXP3(+) regulatory T-cells (Treg) and regulates the development and function of B-cells (PubMed:17356132, PubMed:25446972, PubMed:25778793, PubMed:28891065). Also regulates M2 macrophage polarization by inhibiting T-cell activation (By similarity). Also has antibacterial properties by inhibiting growth of Gram negative and Gram positive bacteria through the production of NH4(+) and H2O2 (PubMed:23355881). {ECO:0000250|UniProtKB:O09046, ECO:0000269|PubMed:17356132, ECO:0000269|PubMed:23355881, ECO:0000269|PubMed:25446972, ECO:0000269|PubMed:25778793, ECO:0000269|PubMed:26673964, ECO:0000269|PubMed:28891065, ECO:0000269|PubMed:32818467, ECO:0000269|PubMed:32866000}. | FUNCTION: Associates with KCNQ3 to form a potassium channel with essentially identical properties to the channel underlying the native M-current, a slowly activating and deactivating potassium conductance which plays a critical role in determining the subthreshold electrical excitability of neurons as well as the responsiveness to synaptic inputs. Therefore, it is important in the regulation of neuronal excitability. KCNQ2/KCNQ3 current is blocked by linopirdine and XE991, and activated by the anticonvulsant retigabine (PubMed:9836639, PubMed:11572947, PubMed:14534157, PubMed:12742592, PubMed:17872363). As the native M-channel, the potassium channel composed of KCNQ2 and KCNQ3 is also suppressed by activation of the muscarinic acetylcholine receptor CHRM1 (PubMed:10684873). {ECO:0000269|PubMed:10684873, ECO:0000269|PubMed:11572947, ECO:0000269|PubMed:12742592, ECO:0000269|PubMed:14534157, ECO:0000269|PubMed:17872363, ECO:0000269|PubMed:25740509, ECO:0000269|PubMed:9836639}. |
| Retention 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, because of limited space for viewing, we only show the protein feature retention information belong to the 13 regional features. All retention annotation result can be downloaded at * Minus value of BPloci means that the break pointn is located before the CDS. |
| - In-frame and retained protein feature among the 13 regional features. |
| Partner | Gene | Hbp | Tbp | ENST | Strand | BPexon | TotalExon | Protein feature loci | *BPloci | TotalLen | Protein feature | Protein feature note |
| - In-frame and not-retained protein feature among the 13 regional features. |
| Partner | Gene | Hbp | Tbp | ENST | Strand | BPexon | TotalExon | Protein feature loci | *BPloci | TotalLen | Protein feature | Protein feature note |
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Fusion Gene Sequence for IL4I1-KCNQ2 |
| For in-frame fusion transcripts, we provide the fusion transcript sequences and fusion amino acid sequences. To have fusion amino acid sequence, we ran ORFfinder and chose the longest ORF among the all predicted ones. |
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Fusion Gene PPI Analysis for IL4I1-KCNQ2 |
| Go to ChiPPI (Chimeric Protein-Protein interactions) to see the chimeric PPI interaction in |
| Protein-protein interactors with each fusion partner protein in wild-type (BIOGRID-3.4.160) |
| Hgene | Hgene's interactors | Tgene | Tgene's interactors |
| - Retained PPIs in in-frame fusion. |
| Partner | Gene | Hbp | Tbp | ENST | Strand | BPexon | TotalExon | Protein feature loci | *BPloci | TotalLen | Still interaction with |
| - Lost PPIs in in-frame fusion. |
| Partner | Gene | Hbp | Tbp | ENST | Strand | BPexon | TotalExon | Protein feature loci | *BPloci | TotalLen | Interaction lost with |
| - Retained PPIs, but lost function due to frame-shift fusion. |
| Partner | Gene | Hbp | Tbp | ENST | Strand | BPexon | TotalExon | Protein feature loci | *BPloci | TotalLen | Interaction lost with |
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Related Drugs for IL4I1-KCNQ2 |
| Drugs targeting genes involved in this fusion gene. (DrugBank Version 5.1.8 2021-05-08) |
| Partner | Gene | UniProtAcc | DrugBank ID | Drug name | Drug activity | Drug type | Drug status |
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Related Diseases for IL4I1-KCNQ2 |
| Diseases associated with fusion partners. (DisGeNet 4.0) |
| Partner | Gene | Disease ID | Disease name | # pubmeds | Source |
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