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Center for Computational Systems Medicine level1
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Fusion Gene Summary

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Fusion Gene Sample Information

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Fusion ORF Analysis

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Fusion Amino Acid Sequences

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Fusion Protein Functional Features

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Fusion Protein-Protein Interaction

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Related drugs with this fusion protein

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Related disease with this fusion protein

Fusion Protein:LETM1-MAEA

Fusion Protein Summary

check button Fusion gene summary
Fusion partner gene informationFusion gene name: LETM1-MAEA
FusionPDB ID: 44485
FusionGDB2.0 ID: 44485
HgeneTgene
Gene symbol

LETM1

MAEA

Gene ID

3954

10296

Gene nameleucine zipper and EF-hand containing transmembrane protein 1macrophage erythroblast attacher, E3 ubiquitin ligase
SynonymsSLC55A1EMLP|EMP|GID9|HLC-10|P44EMLP|PIG5
Cytomap

4p16.3

4p16.3

Type of geneprotein-codingprotein-coding
Descriptionmitochondrial proton/calcium exchanger proteinLETM1 and EF-hand domain-containing protein 1, mitochondrialMdm38 homologleucine zipper-EF-hand containing transmembrane protein 1E3 ubiquitin-protein transferase MAEAGID complex subunit 9, FYV10 homologcell proliferation-inducing gene 5 proteinerythroblast macrophage proteinhuman lung cancer oncogene 10 proteinlung cancer-related protein 10macrophage erythroblast attacher
Modification date2020032820200314
UniProtAcc

O95202

Q7L5Y9

Ensembl transtripts involved in fusion geneENST idsENST00000302787, ENST00000512189, 
ENST00000512289, ENST00000264750, 
ENST00000303400, ENST00000452175, 
ENST00000505177, ENST00000505839, 
ENST00000510794, ENST00000514708, 
Fusion gene scores for assessment (based on all fusion genes of FusionGDB 2.0)* DoF score10 X 13 X 7=9108 X 9 X 5=360
# samples 1211
** MAII scorelog2(12/910*10)=-2.92283213947754
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
log2(11/360*10)=-1.71049338280502
possibly effective Gene in Pan-Cancer Fusion Genes (peGinPCFGs).
DoF>8 and MAII<0
Context (manual curation of fusion genes in FusionPDB)

PubMed: LETM1 [Title/Abstract] AND MAEA [Title/Abstract] AND fusion [Title/Abstract]

Most frequent breakpoint (based on all fusion genes of FusionGDB 2.0)LETM1(1857595)-MAEA(1326544), # samples:1
LETM1(1817390)-MAEA(1332861), # samples:1
Anticipated loss of major functional domain due to fusion event.LETM1-MAEA 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.
LETM1-MAEA 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.
LETM1-MAEA 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.
LETM1-MAEA 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.
LETM1-MAEA seems lost the major protein functional domain in Hgene partner, which is a essential gene due to the frame-shifted ORF.
LETM1-MAEA seems lost the major protein functional domain in Hgene partner, which is a IUPHAR drug target due to the frame-shifted ORF.
LETM1-MAEA seems lost the major protein functional domain in Tgene partner, which is a essential 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
HgeneLETM1

GO:0006851

mitochondrial calcium ion transmembrane transport

19797662

HgeneLETM1

GO:0051560

mitochondrial calcium ion homeostasis

19797662

HgeneLETM1

GO:0099093

calcium export from the mitochondrion

19797662

TgeneMAEA

GO:0007155

cell adhesion

9763581

TgeneMAEA

GO:0033033

negative regulation of myeloid cell apoptotic process

9763581


check buttonFusion gene breakpoints across LETM1 (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 MAEA (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 Gene Sample Information

check buttonFusion gene information from FusionGDB2.0.
check button 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.
SourceDiseaseSampleHgeneHchrHbpHstrandTgeneTchrTbpTstrand
ChimerDB4ESCATCGA-LN-A7HZLETM1chr4

1857595

-MAEAchr4

1326544

+
ChimerDB4STADTCGA-HU-A4GPLETM1chr4

1817390

-MAEAchr4

1332861

+


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Fusion ORF Analysis


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)
ENST00000302787LETM1chr41857595-ENST00000514708MAEAchr41326544+18493795431181
ENST00000302787LETM1chr41817390-ENST00000452175MAEAchr41332861+265823672972462721
ENST00000302787LETM1chr41817390-ENST00000514708MAEAchr41332861+340223672972462721

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
ENST00000302787ENST00000514708LETM1chr41857595-MAEAchr41326544+0.280354440.7196456
ENST00000302787ENST00000452175LETM1chr41817390-MAEAchr41332861+0.0197273250.9802727
ENST00000302787ENST00000514708LETM1chr41817390-MAEAchr41332861+0.0124072640.98759276

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Fusion Amino Acid Sequences


check button 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

>44485_44485_1_LETM1-MAEA_LETM1_chr4_1817390_ENST00000302787_MAEA_chr4_1332861_ENST00000452175_length(amino acids)=721AA_BP=690
MASILLRSCRGRAPARLPPPPRYTVPRGSPGDPAHLSCASTLGLRNCLNVPFGCCTPIHPVYTSSRGDHLGCWALRPECLRIVSRAPWTS
TSVGFVAVGPQCLPVRGWHSSRPVRDDSVVEKSLKSLKDKNKKLEEGGPVYSPPAEVVVKKSLGQRVLDELKHYYHGFRLLWIDTKIAAR
MLWRILNGHSLTRRERRQFLRICADLFRLVPFLVFVVVPFMEFLLPVAVKLFPNMLPSTFETQSLKEERLKKELRVKLELAKFLQDTIEE
MALKNKAAKGSATKDFSVFFQKIRETGERPSNEEIMRFSKLFEDELTLDNLTRPQLVALCKLLELQSIGTNNFLRFQLTMRLRSIKADDK
LIAEEGVDSLNVKELQAACRARGMRALGVTEDRLRGQLKQWLDLHLHQEIPTSLLILSRAMYLPDTLSPADQLKSTLQTLPEIVAKEAQV
KVAEVEGEQVDNKAKLEATLQEEAAIQQEHREKELQKRSEVAKDFEPERVVAAPQRPGTEPQPEMPDTVLQSETLKDTAPVLEGLKEEEI
TKEEIDILSDACSKLQEQKKSLTKEKEELELLKEDVQDYSEDLQEIKKELSKTGEEKYVEESKASKRLTKRVQQMIGQIDGLISQLEMDQ
QAGKLAPANGMPTGENVISVAELINAMKQVKHIPESKLTSLAAALDENKDGKVNIDDLVKSLLSIRQDDKVVCPRTKEVFHFSQAEKVYI

--------------------------------------------------------------

>44485_44485_2_LETM1-MAEA_LETM1_chr4_1817390_ENST00000302787_MAEA_chr4_1332861_ENST00000514708_length(amino acids)=721AA_BP=690
MASILLRSCRGRAPARLPPPPRYTVPRGSPGDPAHLSCASTLGLRNCLNVPFGCCTPIHPVYTSSRGDHLGCWALRPECLRIVSRAPWTS
TSVGFVAVGPQCLPVRGWHSSRPVRDDSVVEKSLKSLKDKNKKLEEGGPVYSPPAEVVVKKSLGQRVLDELKHYYHGFRLLWIDTKIAAR
MLWRILNGHSLTRRERRQFLRICADLFRLVPFLVFVVVPFMEFLLPVAVKLFPNMLPSTFETQSLKEERLKKELRVKLELAKFLQDTIEE
MALKNKAAKGSATKDFSVFFQKIRETGERPSNEEIMRFSKLFEDELTLDNLTRPQLVALCKLLELQSIGTNNFLRFQLTMRLRSIKADDK
LIAEEGVDSLNVKELQAACRARGMRALGVTEDRLRGQLKQWLDLHLHQEIPTSLLILSRAMYLPDTLSPADQLKSTLQTLPEIVAKEAQV
KVAEVEGEQVDNKAKLEATLQEEAAIQQEHREKELQKRSEVAKDFEPERVVAAPQRPGTEPQPEMPDTVLQSETLKDTAPVLEGLKEEEI
TKEEIDILSDACSKLQEQKKSLTKEKEELELLKEDVQDYSEDLQEIKKELSKTGEEKYVEESKASKRLTKRVQQMIGQIDGLISQLEMDQ
QAGKLAPANGMPTGENVISVAELINAMKQVKHIPESKLTSLAAALDENKDGKVNIDDLVKSLLSIRQDDKVVCPRTKEVFHFSQAEKVYI

--------------------------------------------------------------

>44485_44485_3_LETM1-MAEA_LETM1_chr4_1857595_ENST00000302787_MAEA_chr4_1326544_ENST00000514708_length(amino acids)=181AA_BP=1
MSYRNCWISIRHRAGSRRSLYGEMCVSGGKASMPMAWRTSSSWLPSAWLKCFLACPAGRCTEAAAGGGRAPGRGSSSVRWTPCARARRPL
RPPALPPSPRRPRLFAVPAALQTRPARTADRGGWPRTGGALLKDPAPAAALSRHRRPEARGGAARPRLPLGPSAPAAGQVRGGPRHRGLP

--------------------------------------------------------------

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Fusion Protein Functional Features


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/chr4:1857595/chr4:1326544)
- 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 buttonMain function of each fusion partner protein. (from UniProt)
HgeneTgene
LETM1

O95202

MAEA

Q7L5Y9

FUNCTION: Mitochondrial proton/calcium antiporter that mediates proton-dependent calcium efflux from mitochondrion (PubMed:19797662). Crucial for the maintenance of mitochondrial tubular networks and for the assembly of the supercomplexes of the respiratory chain (PubMed:18628306). Required for the maintenance of the tubular shape and cristae organization (PubMed:18628306). In contrast to SLC8B1/NCLX, does not constitute the major factor for mitochondrial calcium extrusion (PubMed:24898248). {ECO:0000269|PubMed:18628306, ECO:0000269|PubMed:19797662, ECO:0000269|PubMed:24898248}.FUNCTION: Core component of the CTLH E3 ubiquitin-protein ligase complex that selectively accepts ubiquitin from UBE2H and mediates ubiquitination and subsequent proteasomal degradation of the transcription factor HBP1. MAEA and RMND5A are both required for catalytic activity of the CTLH E3 ubiquitin-protein ligase complex (PubMed:29911972). MAEA is required for normal cell proliferation (PubMed:29911972). The CTLH E3 ubiquitin-protein ligase complex is not required for the degradation of enzymes involved in gluconeogenesis, such as FBP1 (PubMed:29911972). Plays a role in erythroblast enucleation during erythrocyte maturation and in the development of mature macrophages (By similarity). Mediates the attachment of erythroid cell to mature macrophages; this MAEA-mediated contact inhibits erythroid cell apoptosis (PubMed:9763581). Participates in erythroblastic island formation, which is the functional unit of definitive erythropoiesis. Associates with F-actin to regulate actin distribution in erythroblasts and macrophages (By similarity). May contribute to nuclear architecture and cells division events (Probable). {ECO:0000250|UniProtKB:Q4VC33, ECO:0000269|PubMed:29911972, ECO:0000269|PubMed:9763581, ECO:0000305|PubMed:16510120}.

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, 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

download page

* Minus value of BPloci means that the break pointn is located before the CDS.
- Retained protein feature among the 13 regional features.
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenProtein featureProtein feature note
HgeneLETM1chr4:1817390chr4:1332861ENST00000302787-1314676_688690.0740.0Calcium bindingOntology_term=ECO:0000255
HgeneLETM1chr4:1817390chr4:1332861ENST00000302787-1314115_136690.0740.0Coiled coilOntology_term=ECO:0000255
HgeneLETM1chr4:1817390chr4:1332861ENST00000302787-1314462_490690.0740.0Coiled coilOntology_term=ECO:0000255
HgeneLETM1chr4:1817390chr4:1332861ENST00000302787-1314537_627690.0740.0Coiled coilOntology_term=ECO:0000255
HgeneLETM1chr4:1817390chr4:1332861ENST00000302787-131418_21690.0740.0Compositional biasNote=Poly-Pro
HgeneLETM1chr4:1857595chr4:1326544ENST00000302787-11418_2127.333333333333332740.0Compositional biasNote=Poly-Pro
HgeneLETM1chr4:1817390chr4:1332861ENST00000302787-1314252_537690.0740.0DomainLetm1 RBD
HgeneLETM1chr4:1817390chr4:1332861ENST00000302787-1314116_208690.0740.0Topological domainMitochondrial intermembrane
HgeneLETM1chr4:1817390chr4:1332861ENST00000302787-1314209_229690.0740.0TransmembraneHelical
TgeneMAEAchr4:1857595chr4:1326544ENST0000026475038314_381177.66666666666666356.0Zinc fingerRING-Gid-type
TgeneMAEAchr4:1857595chr4:1326544ENST0000030340049314_381218.66666666666666397.0Zinc fingerRING-Gid-type

- Not-retained protein feature among the 13 regional features.
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenProtein featureProtein feature note
HgeneLETM1chr4:1857595chr4:1326544ENST00000302787-114676_68827.333333333333332740.0Calcium bindingOntology_term=ECO:0000255
HgeneLETM1chr4:1817390chr4:1332861ENST00000302787-1314708_739690.0740.0Coiled coilOntology_term=ECO:0000255
HgeneLETM1chr4:1857595chr4:1326544ENST00000302787-114115_13627.333333333333332740.0Coiled coilOntology_term=ECO:0000255
HgeneLETM1chr4:1857595chr4:1326544ENST00000302787-114462_49027.333333333333332740.0Coiled coilOntology_term=ECO:0000255
HgeneLETM1chr4:1857595chr4:1326544ENST00000302787-114537_62727.333333333333332740.0Coiled coilOntology_term=ECO:0000255
HgeneLETM1chr4:1857595chr4:1326544ENST00000302787-114708_73927.333333333333332740.0Coiled coilOntology_term=ECO:0000255
HgeneLETM1chr4:1817390chr4:1332861ENST00000302787-1314663_698690.0740.0DomainEF-hand
HgeneLETM1chr4:1857595chr4:1326544ENST00000302787-114252_53727.333333333333332740.0DomainLetm1 RBD
HgeneLETM1chr4:1857595chr4:1326544ENST00000302787-114663_69827.333333333333332740.0DomainEF-hand
HgeneLETM1chr4:1817390chr4:1332861ENST00000302787-1314230_739690.0740.0Topological domainMitochondrial matrix
HgeneLETM1chr4:1857595chr4:1326544ENST00000302787-114116_20827.333333333333332740.0Topological domainMitochondrial intermembrane
HgeneLETM1chr4:1857595chr4:1326544ENST00000302787-114230_73927.333333333333332740.0Topological domainMitochondrial matrix
HgeneLETM1chr4:1857595chr4:1326544ENST00000302787-114209_22927.333333333333332740.0TransmembraneHelical
TgeneMAEAchr4:1817390chr4:1332861ENST0000026475068121_153324.0356.0DomainLisH
TgeneMAEAchr4:1817390chr4:1332861ENST0000026475068159_216324.0356.0DomainCTLH
TgeneMAEAchr4:1817390chr4:1332861ENST0000030340079121_153365.0397.0DomainLisH
TgeneMAEAchr4:1817390chr4:1332861ENST0000030340079159_216365.0397.0DomainCTLH
TgeneMAEAchr4:1857595chr4:1326544ENST0000026475038121_153177.66666666666666356.0DomainLisH
TgeneMAEAchr4:1857595chr4:1326544ENST0000026475038159_216177.66666666666666356.0DomainCTLH
TgeneMAEAchr4:1857595chr4:1326544ENST0000030340049121_153218.66666666666666397.0DomainLisH
TgeneMAEAchr4:1857595chr4:1326544ENST0000030340049159_216218.66666666666666397.0DomainCTLH
TgeneMAEAchr4:1817390chr4:1332861ENST00000264750681_124324.0356.0RegionExtracellular and involved in cell to cell contact
TgeneMAEAchr4:1817390chr4:1332861ENST00000303400791_124365.0397.0RegionExtracellular and involved in cell to cell contact
TgeneMAEAchr4:1857595chr4:1326544ENST00000264750381_124177.66666666666666356.0RegionExtracellular and involved in cell to cell contact
TgeneMAEAchr4:1857595chr4:1326544ENST00000303400491_124218.66666666666666397.0RegionExtracellular and involved in cell to cell contact
TgeneMAEAchr4:1817390chr4:1332861ENST0000026475068314_381324.0356.0Zinc fingerRING-Gid-type
TgeneMAEAchr4:1817390chr4:1332861ENST0000030340079314_381365.0397.0Zinc fingerRING-Gid-type


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Fusion Protein-Protein Interaction


check button Go to ChiPPI (Chimeric Protein-Protein interactions) to see the chimeric PPI interaction in

ChiPPI page.


check button Protein-protein interactors with each fusion partner protein in wild-type from validated records (BIOGRID-3.4.160)
GenePPI interactors


check button Protein-protein interactors based on sequence similarity (STRING)
GeneSTRING network
LETM1
MAEA


check button - Retained interactions in fusion protein (protein functional feature from UniProt).
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenStill interaction with


check button - Lost interactions due to fusion (protein functional feature from UniProt).
PartnerGeneHbpTbpENSTStrandBPexonTotalExonProtein feature loci*BPlociTotalLenInteraction lost with


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Related Drugs to LETM1-MAEA


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 LETM1-MAEA


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