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Fusion Protein:PIK3CB-KCNAB1 |
Fusion Protein Summary |
 Fusion gene summary |
| Fusion partner gene information | Fusion gene name: PIK3CB-KCNAB1 | FusionPDB ID: 65377 | FusionGDB2.0 ID: 65377 | Hgene | Tgene | Gene symbol | PIK3CB | KCNAB1 | Gene ID | 5291 | 7881 |
| Gene name | phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit beta | potassium voltage-gated channel subfamily A member regulatory beta subunit 1 | |
| Synonyms | P110BETA|PI3K|PI3KBETA|PIK3C1 | AKR6A3|KCNA1B|KV-BETA-1|Kvb1.3|hKvBeta3|hKvb3 | |
| Cytomap | 3q22.3 | 3q25.31 | |
| Type of gene | protein-coding | protein-coding | |
| Description | phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit beta isoformPI3-kinase p110 subunit betaPI3-kinase subunit betaPI3K-betaPtdIns-3-kinase p110phosphatidylinositol 4,5-bisphosphate 3-kinase 110 kDa catalytic subunit betaphosphoinositid | voltage-gated potassium channel subunit beta-1K(+) channel subunit beta-1K+ channel Beta1a chainpotassium channel beta 3 chainpotassium channel beta3 subunitpotassium channel shaker chain beta 1apotassium channel, voltage gated subfamily A regulator | |
| Modification date | 20200313 | 20200313 | |
| UniProtAcc | . | Q14722 | |
| Ensembl transtripts involved in fusion gene | ENST ids | ENST00000289153, ENST00000477593, ENST00000544716, | ENST00000497291, ENST00000302490, ENST00000389634, ENST00000389636, ENST00000471742, ENST00000490337, |
| Fusion gene scores for assessment (based on all fusion genes of FusionGDB 2.0) | * DoF score | 15 X 13 X 11=2145 | 13 X 10 X 6=780 |
| # samples | 17 | 14 | |
| ** MAII score | log2(17/2145*10)=-3.65737099624921 possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs). DoF>8 and MAII<0 | log2(14/780*10)=-2.47804729680464 possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs). DoF>8 and MAII<0 | |
| Context (manual curation of fusion genes in FusionPDB) | PubMed: PIK3CB [Title/Abstract] AND KCNAB1 [Title/Abstract] AND fusion [Title/Abstract] | ||
| Most frequent breakpoint (based on all fusion genes of FusionGDB 2.0) | PIK3CB(138413628)-KCNAB1(156175242), # samples:2 | ||
| Anticipated loss of major functional domain due to fusion event. | PIK3CB-KCNAB1 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. PIK3CB-KCNAB1 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. PIK3CB-KCNAB1 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. PIK3CB-KCNAB1 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. PIK3CB-KCNAB1 seems lost the major protein functional domain in Hgene partner, which is a cell metabolism gene due to the frame-shifted ORF. PIK3CB-KCNAB1 seems lost the major protein functional domain in Hgene partner, which is a CGC due to the frame-shifted ORF. PIK3CB-KCNAB1 seems lost the major protein functional domain in Hgene partner, which is a IUPHAR drug target 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) |
| 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 |
| Hgene | PIK3CB | GO:0016310 | phosphorylation | 25327288 |
| Tgene | KCNAB1 | GO:1901379 | regulation of potassium ion transmembrane transport | 7890032 |
| Fusion gene breakpoints across PIK3CB (5'-gene) * Click on the image to open the UCSC genome browser with custom track showing this image in a new window. |
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| Fusion gene breakpoints across KCNAB1 (3'-gene) * Click on the image to open the UCSC genome browser with custom track showing this image in a new window. |
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Fusion Gene Sample Information |
| Fusion gene information from FusionGDB2.0. |
| 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 | KIRC | TCGA-B8-5163-01A | PIK3CB | chr3 | 138413628 | - | KCNAB1 | chr3 | 156175242 | + |
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Fusion ORF Analysis |
| Fusion information from ORFfinder translation from full-length transcript sequence from FusionPDB. |
| 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) |
| ENST00000477593 | PIK3CB | chr3 | 138413628 | - | ENST00000490337 | KCNAB1 | chr3 | 156175242 | + | 4667 | 1966 | 74 | 1981 | 635 |
| ENST00000477593 | PIK3CB | chr3 | 138413628 | - | ENST00000389636 | KCNAB1 | chr3 | 156175242 | + | 3381 | 1966 | 74 | 1981 | 635 |
| ENST00000477593 | PIK3CB | chr3 | 138413628 | - | ENST00000471742 | KCNAB1 | chr3 | 156175242 | + | 4726 | 1966 | 74 | 1981 | 635 |
| ENST00000477593 | PIK3CB | chr3 | 138413628 | - | ENST00000302490 | KCNAB1 | chr3 | 156175242 | + | 4878 | 1966 | 74 | 1981 | 635 |
| ENST00000477593 | PIK3CB | chr3 | 138413628 | - | ENST00000389634 | KCNAB1 | chr3 | 156175242 | + | 2782 | 1966 | 74 | 1981 | 635 |
| ENST00000544716 | PIK3CB | chr3 | 138413628 | - | ENST00000490337 | KCNAB1 | chr3 | 156175242 | + | 3179 | 478 | 460 | 1380 | 306 |
| ENST00000544716 | PIK3CB | chr3 | 138413628 | - | ENST00000389636 | KCNAB1 | chr3 | 156175242 | + | 1893 | 478 | 460 | 1293 | 277 |
| ENST00000544716 | PIK3CB | chr3 | 138413628 | - | ENST00000471742 | KCNAB1 | chr3 | 156175242 | + | 3238 | 478 | 460 | 1380 | 306 |
| ENST00000544716 | PIK3CB | chr3 | 138413628 | - | ENST00000302490 | KCNAB1 | chr3 | 156175242 | + | 3390 | 478 | 460 | 1380 | 306 |
| ENST00000544716 | PIK3CB | chr3 | 138413628 | - | ENST00000389634 | KCNAB1 | chr3 | 156175242 | + | 1294 | 478 | 460 | 1293 | 278 |
| 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 |
| ENST00000477593 | ENST00000490337 | PIK3CB | chr3 | 138413628 | - | KCNAB1 | chr3 | 156175242 | + | 0.000194762 | 0.9998053 |
| ENST00000477593 | ENST00000389636 | PIK3CB | chr3 | 138413628 | - | KCNAB1 | chr3 | 156175242 | + | 0.000425678 | 0.99957436 |
| ENST00000477593 | ENST00000471742 | PIK3CB | chr3 | 138413628 | - | KCNAB1 | chr3 | 156175242 | + | 0.00018364 | 0.99981636 |
| ENST00000477593 | ENST00000302490 | PIK3CB | chr3 | 138413628 | - | KCNAB1 | chr3 | 156175242 | + | 0.000171858 | 0.9998281 |
| ENST00000477593 | ENST00000389634 | PIK3CB | chr3 | 138413628 | - | KCNAB1 | chr3 | 156175242 | + | 0.000477626 | 0.9995223 |
| ENST00000544716 | ENST00000490337 | PIK3CB | chr3 | 138413628 | - | KCNAB1 | chr3 | 156175242 | + | 0.000258698 | 0.99974126 |
| ENST00000544716 | ENST00000389636 | PIK3CB | chr3 | 138413628 | - | KCNAB1 | chr3 | 156175242 | + | 0.002133228 | 0.9978668 |
| ENST00000544716 | ENST00000471742 | PIK3CB | chr3 | 138413628 | - | KCNAB1 | chr3 | 156175242 | + | 0.00024969 | 0.9997503 |
| ENST00000544716 | ENST00000302490 | PIK3CB | chr3 | 138413628 | - | KCNAB1 | chr3 | 156175242 | + | 0.000225574 | 0.9997744 |
| ENST00000544716 | ENST00000389634 | PIK3CB | chr3 | 138413628 | - | KCNAB1 | chr3 | 156175242 | + | 0.002815195 | 0.9971848 |
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Fusion Amino Acid Sequences |
| For individual full-length fusion transcript sequence from FusionPDB, we ran ORFfinder and chose the longest ORF among the all predicted ones. |
| >FusionGDB ID_FusionGDB isoform ID_FGname_Hgene_Hchr_Hbp_Henst_Tgene_Tchr_Tbp_Tenst_length(fusion AA) seq_BP >65377_65377_1_PIK3CB-KCNAB1_PIK3CB_chr3_138413628_ENST00000477593_KCNAB1_chr3_156175242_ENST00000302490_length(amino acids)=635AA_BP= MCFSFIMPPAMADILDIWAVDSQIASDGSIPVDFLLPTGIYIQLEVPREATISYIKQMLWKQVHNYPMFNLLMDIDSYMFACVNQTAVYE ELEDETRRLCDVRPFLPVLKLVTRSCDPGEKLDSKIGVLIGKGLHEFDSLKDPEVNEFRRKMRKFSEEKILSLVGLSWMDWLKQTYPPEH EPSIPENLEDKLYGGKLIVAVHFENCQDVFSFQVSPNMNPIKVNELAIQKRLTIHGKEDEVSPYDYVLQVSGRVEYVFGDHPLIQFQYIR NCVMNRALPHFILVECCKIKKMYEQEMIAIEAAINRNSSNLPLPLPPKKTRIISHVWENNNPFQIVLVKGNKLNTEETVKVHVRAGLFHG TELLCKTIVSSEVSGKNDHIWNEPLEFDINICDLPRMARLCFAVYAVLDKVKTKKSTKTINPSKYQTIRKAGKVHYPVAWVNTMVFDFKG QLRTGDIILHSWSSFPDELEEMLNPMGTVQTNPYTENATALHVKFPENKKQPYYYPPFDKIIEKAAEIASSDSANVSSRGGKKFLPVLKE ILDRDPLSQLCENEMDLIWTLRQDCREIFPQSLPKLLLSIKWNKLEDVAQLQALLQIWPKLPPREALELLDFNYPDQYVREYAVGCLRQM -------------------------------------------------------------- >65377_65377_2_PIK3CB-KCNAB1_PIK3CB_chr3_138413628_ENST00000477593_KCNAB1_chr3_156175242_ENST00000389634_length(amino acids)=635AA_BP= MCFSFIMPPAMADILDIWAVDSQIASDGSIPVDFLLPTGIYIQLEVPREATISYIKQMLWKQVHNYPMFNLLMDIDSYMFACVNQTAVYE ELEDETRRLCDVRPFLPVLKLVTRSCDPGEKLDSKIGVLIGKGLHEFDSLKDPEVNEFRRKMRKFSEEKILSLVGLSWMDWLKQTYPPEH EPSIPENLEDKLYGGKLIVAVHFENCQDVFSFQVSPNMNPIKVNELAIQKRLTIHGKEDEVSPYDYVLQVSGRVEYVFGDHPLIQFQYIR NCVMNRALPHFILVECCKIKKMYEQEMIAIEAAINRNSSNLPLPLPPKKTRIISHVWENNNPFQIVLVKGNKLNTEETVKVHVRAGLFHG TELLCKTIVSSEVSGKNDHIWNEPLEFDINICDLPRMARLCFAVYAVLDKVKTKKSTKTINPSKYQTIRKAGKVHYPVAWVNTMVFDFKG QLRTGDIILHSWSSFPDELEEMLNPMGTVQTNPYTENATALHVKFPENKKQPYYYPPFDKIIEKAAEIASSDSANVSSRGGKKFLPVLKE ILDRDPLSQLCENEMDLIWTLRQDCREIFPQSLPKLLLSIKWNKLEDVAQLQALLQIWPKLPPREALELLDFNYPDQYVREYAVGCLRQM -------------------------------------------------------------- >65377_65377_3_PIK3CB-KCNAB1_PIK3CB_chr3_138413628_ENST00000477593_KCNAB1_chr3_156175242_ENST00000389636_length(amino acids)=635AA_BP= MCFSFIMPPAMADILDIWAVDSQIASDGSIPVDFLLPTGIYIQLEVPREATISYIKQMLWKQVHNYPMFNLLMDIDSYMFACVNQTAVYE ELEDETRRLCDVRPFLPVLKLVTRSCDPGEKLDSKIGVLIGKGLHEFDSLKDPEVNEFRRKMRKFSEEKILSLVGLSWMDWLKQTYPPEH EPSIPENLEDKLYGGKLIVAVHFENCQDVFSFQVSPNMNPIKVNELAIQKRLTIHGKEDEVSPYDYVLQVSGRVEYVFGDHPLIQFQYIR NCVMNRALPHFILVECCKIKKMYEQEMIAIEAAINRNSSNLPLPLPPKKTRIISHVWENNNPFQIVLVKGNKLNTEETVKVHVRAGLFHG TELLCKTIVSSEVSGKNDHIWNEPLEFDINICDLPRMARLCFAVYAVLDKVKTKKSTKTINPSKYQTIRKAGKVHYPVAWVNTMVFDFKG QLRTGDIILHSWSSFPDELEEMLNPMGTVQTNPYTENATALHVKFPENKKQPYYYPPFDKIIEKAAEIASSDSANVSSRGGKKFLPVLKE ILDRDPLSQLCENEMDLIWTLRQDCREIFPQSLPKLLLSIKWNKLEDVAQLQALLQIWPKLPPREALELLDFNYPDQYVREYAVGCLRQM -------------------------------------------------------------- >65377_65377_4_PIK3CB-KCNAB1_PIK3CB_chr3_138413628_ENST00000477593_KCNAB1_chr3_156175242_ENST00000471742_length(amino acids)=635AA_BP= MCFSFIMPPAMADILDIWAVDSQIASDGSIPVDFLLPTGIYIQLEVPREATISYIKQMLWKQVHNYPMFNLLMDIDSYMFACVNQTAVYE ELEDETRRLCDVRPFLPVLKLVTRSCDPGEKLDSKIGVLIGKGLHEFDSLKDPEVNEFRRKMRKFSEEKILSLVGLSWMDWLKQTYPPEH EPSIPENLEDKLYGGKLIVAVHFENCQDVFSFQVSPNMNPIKVNELAIQKRLTIHGKEDEVSPYDYVLQVSGRVEYVFGDHPLIQFQYIR NCVMNRALPHFILVECCKIKKMYEQEMIAIEAAINRNSSNLPLPLPPKKTRIISHVWENNNPFQIVLVKGNKLNTEETVKVHVRAGLFHG TELLCKTIVSSEVSGKNDHIWNEPLEFDINICDLPRMARLCFAVYAVLDKVKTKKSTKTINPSKYQTIRKAGKVHYPVAWVNTMVFDFKG QLRTGDIILHSWSSFPDELEEMLNPMGTVQTNPYTENATALHVKFPENKKQPYYYPPFDKIIEKAAEIASSDSANVSSRGGKKFLPVLKE ILDRDPLSQLCENEMDLIWTLRQDCREIFPQSLPKLLLSIKWNKLEDVAQLQALLQIWPKLPPREALELLDFNYPDQYVREYAVGCLRQM -------------------------------------------------------------- >65377_65377_5_PIK3CB-KCNAB1_PIK3CB_chr3_138413628_ENST00000477593_KCNAB1_chr3_156175242_ENST00000490337_length(amino acids)=635AA_BP= MCFSFIMPPAMADILDIWAVDSQIASDGSIPVDFLLPTGIYIQLEVPREATISYIKQMLWKQVHNYPMFNLLMDIDSYMFACVNQTAVYE ELEDETRRLCDVRPFLPVLKLVTRSCDPGEKLDSKIGVLIGKGLHEFDSLKDPEVNEFRRKMRKFSEEKILSLVGLSWMDWLKQTYPPEH EPSIPENLEDKLYGGKLIVAVHFENCQDVFSFQVSPNMNPIKVNELAIQKRLTIHGKEDEVSPYDYVLQVSGRVEYVFGDHPLIQFQYIR NCVMNRALPHFILVECCKIKKMYEQEMIAIEAAINRNSSNLPLPLPPKKTRIISHVWENNNPFQIVLVKGNKLNTEETVKVHVRAGLFHG TELLCKTIVSSEVSGKNDHIWNEPLEFDINICDLPRMARLCFAVYAVLDKVKTKKSTKTINPSKYQTIRKAGKVHYPVAWVNTMVFDFKG QLRTGDIILHSWSSFPDELEEMLNPMGTVQTNPYTENATALHVKFPENKKQPYYYPPFDKIIEKAAEIASSDSANVSSRGGKKFLPVLKE ILDRDPLSQLCENEMDLIWTLRQDCREIFPQSLPKLLLSIKWNKLEDVAQLQALLQIWPKLPPREALELLDFNYPDQYVREYAVGCLRQM -------------------------------------------------------------- >65377_65377_6_PIK3CB-KCNAB1_PIK3CB_chr3_138413628_ENST00000544716_KCNAB1_chr3_156175242_ENST00000302490_length(amino acids)=306AA_BP=6 MPATDEVAERLMTIAYESGVNLFDTAEVYAAGKAEVILGSIIKKKGWRRSSLVITTKLYWGGKAETERGLSRKHIIEGLKGSLQRLQLEY VDVVFANRPDSNTPMEEIVRAMTHVINQGMAMYWGTSRWSAMEIMEAYSVARQFNMIPPVCEQAEYHLFQREKVEVQLPELYHKIGVGAM TWSPLACGIISGKYGNGVPESSRASLKCYQWLKERIVSEEGRKQQNKLKDLSPIAERLGCTLPQLAVAWCLRNEGVSSVLLGSSTPEQLI -------------------------------------------------------------- >65377_65377_7_PIK3CB-KCNAB1_PIK3CB_chr3_138413628_ENST00000544716_KCNAB1_chr3_156175242_ENST00000389634_length(amino acids)=278AA_BP=6 MPATDEVAERLMTIAYESGVNLFDTAEVYAAGKAEVILGSIIKKKGWRRSSLVITTKLYWGGKAETERGLSRKHIIEEIVRAMTHVINQG MAMYWGTSRWSAMEIMEAYSVARQFNMIPPVCEQAEYHLFQREKVEVQLPELYHKIGVGAMTWSPLACGIISGKYGNGVPESSRASLKCY QWLKERIVSEEGRKQQNKLKDLSPIAERLGCTLPQLAVAWCLRNEGVSSVLLGSSTPEQLIENLGAIQVLPKMTSHVVNEIDNILRNKPY -------------------------------------------------------------- >65377_65377_8_PIK3CB-KCNAB1_PIK3CB_chr3_138413628_ENST00000544716_KCNAB1_chr3_156175242_ENST00000389636_length(amino acids)=277AA_BP=6 MPATDEVAERLMTIAYESGVNLFDTAEVYAAGKAEVILGSIIKKKGWRRSSLVITTKLYWGGKAETERGLSRKHIIEEIVRAMTHVINQG MAMYWGTSRWSAMEIMEAYSVARQFNMIPPVCEQAEYHLFQREKVEVQLPELYHKIGVGAMTWSPLACGIISGKYGNGVPESSRASLKCY QWLKERIVSEEGRKQQNKLKDLSPIAERLGCTLPQLAVAWCLRNEGVSSVLLGSSTPEQLIENLGAIQVLPKMTSHVVNEIDNILRNKPY -------------------------------------------------------------- >65377_65377_9_PIK3CB-KCNAB1_PIK3CB_chr3_138413628_ENST00000544716_KCNAB1_chr3_156175242_ENST00000471742_length(amino acids)=306AA_BP=6 MPATDEVAERLMTIAYESGVNLFDTAEVYAAGKAEVILGSIIKKKGWRRSSLVITTKLYWGGKAETERGLSRKHIIEGLKGSLQRLQLEY VDVVFANRPDSNTPMEEIVRAMTHVINQGMAMYWGTSRWSAMEIMEAYSVARQFNMIPPVCEQAEYHLFQREKVEVQLPELYHKIGVGAM TWSPLACGIISGKYGNGVPESSRASLKCYQWLKERIVSEEGRKQQNKLKDLSPIAERLGCTLPQLAVAWCLRNEGVSSVLLGSSTPEQLI -------------------------------------------------------------- >65377_65377_10_PIK3CB-KCNAB1_PIK3CB_chr3_138413628_ENST00000544716_KCNAB1_chr3_156175242_ENST00000490337_length(amino acids)=306AA_BP=6 MPATDEVAERLMTIAYESGVNLFDTAEVYAAGKAEVILGSIIKKKGWRRSSLVITTKLYWGGKAETERGLSRKHIIEGLKGSLQRLQLEY VDVVFANRPDSNTPMEEIVRAMTHVINQGMAMYWGTSRWSAMEIMEAYSVARQFNMIPPVCEQAEYHLFQREKVEVQLPELYHKIGVGAM TWSPLACGIISGKYGNGVPESSRASLKCYQWLKERIVSEEGRKQQNKLKDLSPIAERLGCTLPQLAVAWCLRNEGVSSVLLGSSTPEQLI -------------------------------------------------------------- |
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Fusion Protein Functional Features |
| Four levels of functional features of fusion genes Go to FGviewer search page for the most frequent breakpoint (https://ccsmweb.uth.edu/FGviewer/chr3:138413628/chr3:156175242) - 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 |
| . | KCNAB1 |
| FUNCTION: Might normally function as a transcriptional repressor. EWS-fusion-proteins (EFPS) may play a role in the tumorigenic process. They may disturb gene expression by mimicking, or interfering with the normal function of CTD-POLII within the transcription initiation complex. They may also contribute to an aberrant activation of the fusion protein target genes. | FUNCTION: Cytoplasmic potassium channel subunit that modulates the characteristics of the channel-forming alpha-subunits (PubMed:7499366, PubMed:7603988, PubMed:17156368,PubMed:17540341, PubMed:19713757). Modulates action potentials via its effect on the pore-forming alpha subunits (By similarity). Promotes expression of the pore-forming alpha subunits at the cell membrane, and thereby increases channel activity (By similarity). Mediates closure of delayed rectifier potassium channels by physically obstructing the pore via its N-terminal domain and increases the speed of channel closure for other family members (PubMed:9763623). Promotes the closure of KCNA1, KCNA2 and KCNA5 channels (PubMed:7499366, PubMed:7890032, PubMed:7603988, PubMed:7649300, PubMed:8938711, PubMed:12077175, PubMed:12130714, PubMed:15361858, PubMed:17540341, PubMed:19713757). Accelerates KCNA4 channel closure (PubMed:7890032, PubMed:7649300, PubMed:7890764, PubMed:9763623). Accelerates the closure of heteromeric channels formed by KCNA1 and KCNA4 (PubMed:17156368). Accelerates the closure of heteromeric channels formed by KCNA2, KCNA5 and KCNA6 (By similarity). Isoform KvB1.2 has no effect on KCNA1, KCNA2 or KCNB1 (PubMed:7890032, PubMed:7890764). Enhances KCNB1 and KCNB2 channel activity (By similarity). Binds NADPH; this is required for efficient down-regulation of potassium channel activity (PubMed:17540341). Has NADPH-dependent aldoketoreductase activity (By similarity). Oxidation of the bound NADPH strongly decreases N-type inactivation of potassium channel activity (By similarity). {ECO:0000250|UniProtKB:P63143, ECO:0000250|UniProtKB:P63144, ECO:0000269|PubMed:12077175, ECO:0000269|PubMed:12130714, ECO:0000269|PubMed:15361858, ECO:0000269|PubMed:17156368, ECO:0000269|PubMed:17540341, ECO:0000269|PubMed:19713757, ECO:0000269|PubMed:7499366, ECO:0000269|PubMed:7603988, ECO:0000269|PubMed:7649300, ECO:0000269|PubMed:7890032, ECO:0000269|PubMed:7890764, ECO:0000269|PubMed:8938711, ECO:0000269|PubMed:9763623, ECO:0000305}. |
| 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. |
| - 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 |
| Hgene | PIK3CB | chr3:138413628 | chr3:156175242 | ENST00000289153 | - | 12 | 22 | 194_285 | 630.6666666666666 | 1071.0 | Domain | PI3K-RBD |
| Hgene | PIK3CB | chr3:138413628 | chr3:156175242 | ENST00000289153 | - | 12 | 22 | 26_115 | 630.6666666666666 | 1071.0 | Domain | PI3K-ABD |
| Hgene | PIK3CB | chr3:138413628 | chr3:156175242 | ENST00000289153 | - | 12 | 22 | 327_496 | 630.6666666666666 | 1071.0 | Domain | C2 PI3K-type |
| Hgene | PIK3CB | chr3:138413628 | chr3:156175242 | ENST00000477593 | - | 13 | 23 | 194_285 | 630.6666666666666 | 1071.0 | Domain | PI3K-RBD |
| Hgene | PIK3CB | chr3:138413628 | chr3:156175242 | ENST00000477593 | - | 13 | 23 | 26_115 | 630.6666666666666 | 1071.0 | Domain | PI3K-ABD |
| Hgene | PIK3CB | chr3:138413628 | chr3:156175242 | ENST00000477593 | - | 13 | 23 | 327_496 | 630.6666666666666 | 1071.0 | Domain | C2 PI3K-type |
| Hgene | PIK3CB | chr3:138413628 | chr3:156175242 | ENST00000289153 | - | 12 | 22 | 410_418 | 630.6666666666666 | 1071.0 | Motif | Note=Nuclear localization signal |
| Hgene | PIK3CB | chr3:138413628 | chr3:156175242 | ENST00000477593 | - | 13 | 23 | 410_418 | 630.6666666666666 | 1071.0 | Motif | Note=Nuclear localization signal |
| Tgene | KCNAB1 | chr3:138413628 | chr3:156175242 | ENST00000302490 | 2 | 14 | 108_109 | 101.0 | 402.0 | Nucleotide binding | NADP | |
| Tgene | KCNAB1 | chr3:138413628 | chr3:156175242 | ENST00000302490 | 2 | 14 | 240_241 | 101.0 | 402.0 | Nucleotide binding | NADP | |
| Tgene | KCNAB1 | chr3:138413628 | chr3:156175242 | ENST00000302490 | 2 | 14 | 295_300 | 101.0 | 402.0 | Nucleotide binding | NADP | |
| Tgene | KCNAB1 | chr3:138413628 | chr3:156175242 | ENST00000302490 | 2 | 14 | 375_381 | 101.0 | 402.0 | Nucleotide binding | NADP | |
| Tgene | KCNAB1 | chr3:138413628 | chr3:156175242 | ENST00000471742 | 2 | 14 | 108_109 | 108.0 | 409.0 | Nucleotide binding | NADP | |
| Tgene | KCNAB1 | chr3:138413628 | chr3:156175242 | ENST00000471742 | 2 | 14 | 240_241 | 108.0 | 409.0 | Nucleotide binding | NADP | |
| Tgene | KCNAB1 | chr3:138413628 | chr3:156175242 | ENST00000471742 | 2 | 14 | 295_300 | 108.0 | 409.0 | Nucleotide binding | NADP | |
| Tgene | KCNAB1 | chr3:138413628 | chr3:156175242 | ENST00000471742 | 2 | 14 | 375_381 | 108.0 | 409.0 | Nucleotide binding | NADP | |
| Tgene | KCNAB1 | chr3:138413628 | chr3:156175242 | ENST00000490337 | 2 | 14 | 240_241 | 119.0 | 420.0 | Nucleotide binding | NADP | |
| Tgene | KCNAB1 | chr3:138413628 | chr3:156175242 | ENST00000490337 | 2 | 14 | 295_300 | 119.0 | 420.0 | Nucleotide binding | NADP | |
| Tgene | KCNAB1 | chr3:138413628 | chr3:156175242 | ENST00000490337 | 2 | 14 | 375_381 | 119.0 | 420.0 | Nucleotide binding | NADP |
| - 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 |
| Hgene | PIK3CB | chr3:138413628 | chr3:156175242 | ENST00000289153 | - | 12 | 22 | 524_701 | 630.6666666666666 | 1071.0 | Domain | PIK helical |
| Hgene | PIK3CB | chr3:138413628 | chr3:156175242 | ENST00000289153 | - | 12 | 22 | 800_1067 | 630.6666666666666 | 1071.0 | Domain | PI3K/PI4K |
| Hgene | PIK3CB | chr3:138413628 | chr3:156175242 | ENST00000477593 | - | 13 | 23 | 524_701 | 630.6666666666666 | 1071.0 | Domain | PIK helical |
| Hgene | PIK3CB | chr3:138413628 | chr3:156175242 | ENST00000477593 | - | 13 | 23 | 800_1067 | 630.6666666666666 | 1071.0 | Domain | PI3K/PI4K |
| Tgene | KCNAB1 | chr3:138413628 | chr3:156175242 | ENST00000490337 | 2 | 14 | 108_109 | 119.0 | 420.0 | Nucleotide binding | NADP |
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Fusion Protein-Protein Interaction |
| 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 from validated records (BIOGRID-3.4.160) |
| Gene | PPI interactors |
| Protein-protein interactors based on sequence similarity (STRING) |
| Gene | STRING network |
| PIK3CB | |
| KCNAB1 |
| - Retained interactions in fusion protein (protein functional feature from UniProt). |
| Partner | Gene | Hbp | Tbp | ENST | Strand | BPexon | TotalExon | Protein feature loci | *BPloci | TotalLen | Still interaction with |
| - Lost interactions due to fusion (protein functional feature from UniProt). |
| Partner | Gene | Hbp | Tbp | ENST | Strand | BPexon | TotalExon | Protein feature loci | *BPloci | TotalLen | Interaction lost with |
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Related Drugs to PIK3CB-KCNAB1 |
| Drugs used for this fusion-positive patient. (Manual curation of PubMed, 04-30-2022 + MyCancerGenome) |
| Hgene | Tgene | Drug | Source | PMID |
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Related Diseases to PIK3CB-KCNAB1 |
| Diseases that have this fusion gene. (Manual curation of PubMed, 04-30-2022 + MyCancerGenome) |
| Hgene | Tgene | Disease | Source | PMID |
| Diseases associated with fusion partners. (DisGeNet 4.0) |
| Partner | Gene | Disease ID | Disease name | # pubmeds | Source |
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