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Center for Computational Systems Medicine
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Protein Summary

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AS Summary

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Protein Functional Features

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Gene Isoform Structures and Expression Levels

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Protein Structures

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pLDDT Score Distribution

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Ramachandran Plot of Protein Structures

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Potential Active Site Information

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Protein Structure and Feature Comparision

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Protein-Protein Interaction

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Related Drugs

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Related Diseases

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Clinically Important Variants

Protein:CELF1

Protein Summary

check button Gene summary
Gene name: CELF1
ASpdb.0 ID: 10658
Gene
Gene symbol

CELF1

Gene ID

10658

Gene nameCUGBP Elav-like family member 1
SynonymsBRUNOL2|CUG-BP|CUGBP|CUGBP1|EDEN-BP|NAB50|NAPOR|hNab50
Cytomap

11p11.2

Type of geneprotein-coding
DescriptionCUGBP Elav-like family member 150 kDa nuclear polyadenylated RNA-binding proteinCUG RNA-binding proteinCUG triplet repeat RNA-binding protein 1CUG-BP- and ETR-3-like factor 1EDEN-BP homologRNA-binding protein BRUNOL-2bruno-like 2bruno-like protein
Modification date20240305
UniProtAcc

Q92879


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneCELF1

GO:0003723

RNA binding

16946708

GeneCELF1

GO:0003729

mRNA binding

14726956

GeneCELF1

GO:0003730

mRNA 3'-UTR binding

30508596

GeneCELF1

GO:0005634

nucleus

11158314|26366374

GeneCELF1

GO:0005654

nucleoplasm

-

GeneCELF1

GO:0006376

mRNA splice site recognition

11158314

GeneCELF1

GO:0010494

cytoplasmic stress granule

18164289

GeneCELF1

GO:0016441

post-transcriptional gene silencing

30508596

GeneCELF1

GO:0036002

pre-mRNA binding

11158314

GeneCELF1

GO:0042835

BRE binding

10893231

GeneCELF1

GO:0043484

regulation of RNA splicing

16946708

GeneCELF1

GO:0097356

perinucleolar compartment

18164289



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
Q92879-1Q92879-1_3nmr_A.pdb3NMRX-ray1.85A14187

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
Q92879CELF1Q92879-1Q92879-2486482231234Deletionnonenone230230
Q92879CELF1Q92879-1Q92879-3486483231234Deletionnonenone230230
Q92879CELF1Q92879-1Q92879-3486483297297SubstitutionSSA293294
Q92879CELF1Q92879-1Q92879-448651211SubstitutionMMAAFKLDFLPEMMVDHCSLNSSPVSKKM128
Q92879CELF1Q92879-1Q92879-4486512104104Deletionnonenone130130
Q92879CELF1Q92879-1Q92879-5486468117Deletionnonenone00
Q92879CELF1Q92879-1Q92879-5486468104104Deletionnonenone8686
Q92879CELF1Q92879-1Q92879-6486485104104Deletionnonenone103103

check buttonMultiple sequence alignment of our canonical and alternatively spliced CELF1

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of CELF1
UniProt-idENSGENSTENSP
Q92879-1ENSG00000149187.19ENST00000358597.7ENSP00000351409.3
Q92879-2ENSG00000149187.19ENST00000310513.10ENSP00000308386.5
Q92879-3ENSG00000149187.19ENST00000361904.7ENSP00000354639.3
Q92879-3ENSG00000149187.19ENST00000395292.6ENSP00000378706.2
Q92879-4ENSG00000149187.19ENST00000532048.5ENSP00000435926.1
Q92879-6ENSG00000149187.19ENST00000395290.6ENSP00000378705.2

UniProt-idNM IDNP ID
Q92879-1NM_001025596.2NP_001020767.1
Q92879-2NM_006560.3NP_006551.1
Q92879-3NM_198700.2NP_941989.1
Q92879-4NM_001172639.1NP_001166110.1
Q92879-6NM_001172640.1NP_001166111.1

check buttonAmino acid sequences of our canonical and alternatively spliced CELF1
accession_idProtein sequence
Q92879-1MNGTLDHPDQPDLDAIKMFVGQVPRTWSEKDLRELFEQYGAVYEINVLRDRSQNPPQSKGCCFVTFYTRKAALEAQNALHNMKVLPGMHH
PIQMKPADSEKNNAVEDRKLFIGMISKKCTENDIRVMFSSFGQIEECRILRGPDGLSRGCAFVTFTTRAMAQTAIKAMHQAQTMEGCSSP
MVVKFADTQKDKEQKRMAQQLQQQMQQISAASVWGNLAGLNTLGPQYLALYLQLLQQTASSGNLNTLSSLHPMGGLNAMQLQNLAALAAA
ASAAQNTPSGTNALTTSSSPLSVLTSSGSSPSSSSSNSVNPIASLGALQTLAGATAGLNVGSLAGMAALNGGLGSSGLSNGTGSTMEALT
QAYSGIQQYAAAALPTLYNQNLLTQQSIGAAGSQKEGPEGANLFIYHLPQEFGDQDLLQMFMPFGNVVSAKVFIDKQTNLSKCFGFVSYD
Q92879-2MNGTLDHPDQPDLDAIKMFVGQVPRTWSEKDLRELFEQYGAVYEINVLRDRSQNPPQSKGCCFVTFYTRKAALEAQNALHNMKVLPGMHH
PIQMKPADSEKNNAVEDRKLFIGMISKKCTENDIRVMFSSFGQIEECRILRGPDGLSRGCAFVTFTTRAMAQTAIKAMHQAQTMEGCSSP
MVVKFADTQKDKEQKRMAQQLQQQMQQISAASVWGNLAGLNTLGPQYLALLQQTASSGNLNTLSSLHPMGGLNAMQLQNLAALAAAASAA
QNTPSGTNALTTSSSPLSVLTSSGSSPSSSSSNSVNPIASLGALQTLAGATAGLNVGSLAGMAALNGGLGSSGLSNGTGSTMEALTQAYS
GIQQYAAAALPTLYNQNLLTQQSIGAAGSQKEGPEGANLFIYHLPQEFGDQDLLQMFMPFGNVVSAKVFIDKQTNLSKCFGFVSYDNPVS
Q92879-3MNGTLDHPDQPDLDAIKMFVGQVPRTWSEKDLRELFEQYGAVYEINVLRDRSQNPPQSKGCCFVTFYTRKAALEAQNALHNMKVLPGMHH
PIQMKPADSEKNNAVEDRKLFIGMISKKCTENDIRVMFSSFGQIEECRILRGPDGLSRGCAFVTFTTRAMAQTAIKAMHQAQTMEGCSSP
MVVKFADTQKDKEQKRMAQQLQQQMQQISAASVWGNLAGLNTLGPQYLALLQQTASSGNLNTLSSLHPMGGLNAMQLQNLAALAAAASAA
QNTPSGTNALTTSSSPLSVLTSSAGSSPSSSSSNSVNPIASLGALQTLAGATAGLNVGSLAGMAALNGGLGSSGLSNGTGSTMEALTQAY
SGIQQYAAAALPTLYNQNLLTQQSIGAAGSQKEGPEGANLFIYHLPQEFGDQDLLQMFMPFGNVVSAKVFIDKQTNLSKCFGFVSYDNPV
Q92879-4MAAFKLDFLPEMMVDHCSLNSSPVSKKMNGTLDHPDQPDLDAIKMFVGQVPRTWSEKDLRELFEQYGAVYEINVLRDRSQNPPQSKGCCF
VTFYTRKAALEAQNALHNMKVLPGMHHPIQMKPADSEKNNVEDRKLFIGMISKKCTENDIRVMFSSFGQIEECRILRGPDGLSRGCAFVT
FTTRAMAQTAIKAMHQAQTMEGCSSPMVVKFADTQKDKEQKRMAQQLQQQMQQISAASVWGNLAGLNTLGPQYLALYLQLLQQTASSGNL
NTLSSLHPMGGLNAMQLQNLAALAAAASAAQNTPSGTNALTTSSSPLSVLTSSGSSPSSSSSNSVNPIASLGALQTLAGATAGLNVGSLA
GMAALNGGLGSSGLSNGTGSTMEALTQAYSGIQQYAAAALPTLYNQNLLTQQSIGAAGSQKEGPEGANLFIYHLPQEFGDQDLLQMFMPF
Q92879-5MFVGQVPRTWSEKDLRELFEQYGAVYEINVLRDRSQNPPQSKGCCFVTFYTRKAALEAQNALHNMKVLPGMHHPIQMKPADSEKNNVEDR
KLFIGMISKKCTENDIRVMFSSFGQIEECRILRGPDGLSRGCAFVTFTTRAMAQTAIKAMHQAQTMEGCSSPMVVKFADTQKDKEQKRMA
QQLQQQMQQISAASVWGNLAGLNTLGPQYLALYLQLLQQTASSGNLNTLSSLHPMGGLNAMQLQNLAALAAAASAAQNTPSGTNALTTSS
SPLSVLTSSGSSPSSSSSNSVNPIASLGALQTLAGATAGLNVGSLAGMAALNGGLGSSGLSNGTGSTMEALTQAYSGIQQYAAAALPTLY
NQNLLTQQSIGAAGSQKEGPEGANLFIYHLPQEFGDQDLLQMFMPFGNVVSAKVFIDKQTNLSKCFGFVSYDNPVSAQAAIQSMNGFQIG
Q92879-6MNGTLDHPDQPDLDAIKMFVGQVPRTWSEKDLRELFEQYGAVYEINVLRDRSQNPPQSKGCCFVTFYTRKAALEAQNALHNMKVLPGMHH
PIQMKPADSEKNNVEDRKLFIGMISKKCTENDIRVMFSSFGQIEECRILRGPDGLSRGCAFVTFTTRAMAQTAIKAMHQAQTMEGCSSPM
VVKFADTQKDKEQKRMAQQLQQQMQQISAASVWGNLAGLNTLGPQYLALYLQLLQQTASSGNLNTLSSLHPMGGLNAMQLQNLAALAAAA
SAAQNTPSGTNALTTSSSPLSVLTSSGSSPSSSSSNSVNPIASLGALQTLAGATAGLNVGSLAGMAALNGGLGSSGLSNGTGSTMEALTQ
AYSGIQQYAAAALPTLYNQNLLTQQSIGAAGSQKEGPEGANLFIYHLPQEFGDQDLLQMFMPFGNVVSAKVFIDKQTNLSKCFGFVSYDN

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
CELF1 (go to UniProt):Q92879

check buttonRetention analysis result of 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.
Accession_idSubsectionStartEndFuncitonal featureSplicing information
Q92879Domain1699Note=RRM 1;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00176Type=Deletion;Start=1;End=17
Q92879Region277309Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Substitution;Start=297;End=297


Gene Isoform Structures and Expression Levels for CELF1

check buttonGene structures of our canonical and alternative spliced genes of CELF1
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of CELF1

check button Expression levels of gene isoforms across GTEx.
gtex expression

check button Expression levels of gene isoforms across TCGA.
tcga expression


Protein Structures

check button PDB and CIF files of the predicted protein structures
* Here we show the 3D structure of the proteins using Mol*. AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Model confidence is shown from the pLDDT values per residue. pLDDT corresponds to the model’s prediction of its score on the local Distance Difference Test. It is a measure of local accuracy (from AlphfaFold website). To color code individual residues, we transformed individual PDB files into CIF format.
3D view using mol* of Q92879-1
3D view using mol* of Q92879-2
3D view using mol* of Q92879-3
3D view using mol* of Q92879-4
3D view using mol* of Q92879-5
3D view using mol* of Q92879-6


pLDDT Score Distribution

check button pLDDT score distribution of the predicted protein structures from AlphaFold2
* AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100.
pLDDT distribution across the protein length of Q92879-1
all structure
pLDDT distribution across the protein length of Q92879-2
all structure
pLDDT distribution across the protein length of Q92879-3
all structure
pLDDT distribution across the protein length of Q92879-4
all structure
pLDDT distribution across the protein length of Q92879-5
all structure
pLDDT distribution across the protein length of Q92879-6
all structure


Ramachandran Plot of Protein Structures


check button Ramachandran plot of the torsional angles - phi (φ)and psi (ψ) - of the residues (amino acids) contained in this protein peptide.
Ramachandran plot of Q92879-1
all structure
Ramachandran plot of Q92879-2
all structure
Ramachandran plot of Q92879-3
all structure
Ramachandran plot of Q92879-4
all structure
Ramachandran plot of Q92879-5
all structure
Ramachandran plot of Q92879-6
all structure

Potential Active Site Information


check button The potential binding sites of these proteins were identified using SiteMap, a module of the Schrodinger suite.
UniProt-idSite scoreSizeD scoreVolumeExposureEnclosureContactPhobicPhilicBalanceDon/AccResidues
Q92879-10.958561.027138.2290.6060.6950.9122.5060.2878.7334.121197,198,201,202,204,205,208,227,230,231,234
Q92879-20.969911.013293.6080.5430.6380.8430.4070.8190.4971.188380,381,382,383,384,385,387,388,389,390,391,410,41
4,418,422,423,424,425,426,427
Q92879-30.9721260.971331.6810.4770.6570.8770.2831.1120.2540.826381,382,383,384,385,386,387,388,389,390,391,392,41
1,412,415,419,423,424,425,426,427,428,443
Q92879-40.761390.786104.9580.6390.590.9021.5110.4763.1764.407258,259,261,262,282,283,286,287,289,290,291,294,29
5,298
Q92879-50.9781060.903276.8010.5230.6660.9540.2241.3380.1670.369366,367,368,369,370,371,372,373,374,375,376,377,39
6,397,400,408,409,410,411,412,413,428
Q92879-60.883590.932141.3160.5460.6220.881.520.53.0416.777231,232,234,235,255,256,259,260,263,264,266,267,26
8,271

Protein Structure and Feature Comparision


check button Protein Structure Comparision Using Template Modeling Scores (TM-score).
all structure

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Canonical validated structure (PDB)(green)
3D view using mol* of Q92879-1_Q92879-1_3nmr_A.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical validated structure (PDB)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of Q92879-1_3nmr_A_Q92879-2.pdb
3D view using mol* of Q92879-1_3nmr_A_Q92879-3.pdb
3D view using mol* of Q92879-1_3nmr_A_Q92879-4.pdb
3D view using mol* of Q92879-1_3nmr_A_Q92879-5.pdb
3D view using mol* of Q92879-1_3nmr_A_Q92879-6.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of Q92879-1_Q92879-2.pdb
3D view using mol* of Q92879-1_Q92879-3.pdb
3D view using mol* of Q92879-1_Q92879-4.pdb
3D view using mol* of Q92879-1_Q92879-5.pdb
3D view using mol* of Q92879-1_Q92879-6.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/Q92879-1_vs_Q92879-2.png
all structure<
./stats/secondary_structure/figure/Q92879-1_vs_Q92879-3.png
all structure<
./stats/secondary_structure/figure/Q92879-1_vs_Q92879-4.png
all structure<
./stats/secondary_structure/figure/Q92879-1_vs_Q92879-5.png
all structure<
./stats/secondary_structure/figure/Q92879-1_vs_Q92879-6.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/Q92879-1_vs_Q92879-2.png
all structure<
./stats/relative_asa/Q92879-1_vs_Q92879-3.png
all structure<
./stats/relative_asa/Q92879-1_vs_Q92879-4.png
all structure<
./stats/relative_asa/Q92879-1_vs_Q92879-5.png
all structure<
./stats/relative_asa/Q92879-1_vs_Q92879-6.png
all structure<


Protein-Protein Interaction


check button Interactors from UniProt.
Accession_idSubsectionStartEndFuncitonal featureSplicing information


check button Interactors from STRING.
Gene nameInteractors


Related Drugs to CELF1


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions

Related Diseases to CELF1


check button Previous studies relating to the alternative splicing of CELF1 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term
CELF112799066A functional deadenylation assay identifies human CUG-BP as a deadenylation factor.CUG-BP is a human nuclear and cytoplasmic RNA-binding protein. A role in the control of alternative splicing has been reported, but to date no cytoplasmic function for this protein has been demonstrated. A close sequence homolog of CUG-BP is EDEN-BP that is required for the specific cytoplasmic poly(A) tail shortening of certain mRNAs after fertilization of Xenopus eggs. Here, we show that human CUG-BP and Xenopus EDEN-BP have very similar RNA-binding specificities. In addition, we use a deadenylation assay to show that CUG-BP is able to act as a deadenylation factor. In contrast, a mutant form of CUG-BP, though still able to bind to RNA with a specificity similar to that of wild-type CUG-BP, does not act as a deadenylation factor. It is suggested that the CUG expansion associated with Type 1 myotonic dystrophy can affect the function or the activity of CUG-BP, leading to a trans-dominant effect on normal RNA processing. The results presented here identify CUG-BP-dependent deadenylation as a potential cytoplasmic target for this trans-dominant effect.D009223Myotonic Dystrophy
CELF115546872MBNL1 is the primary determinant of focus formation and aberrant insulin receptor splicing in DM1.In myotonic dystrophy 1 (DM1), aggregation of the mutant DMPK RNA into RNA-protein complexes containing MBNL1 and MBNL2 has been linked to aberrant splicing of the insulin receptor (IR) RNA. In a parallel line of investigation, elevated levels of CUG-binding protein (CUG-BP) have been shown to result in altered IR splicing in DM1. The relative importance of MBNL1, MBNL2, and CUG-BP in DM1 pathogenesis is, however, unclear. Here we have demonstrated that either small interfering RNA-mediated down-regulation of MBNL1 and MBNL2 or the overexpression of CUG-BP in normal myoblasts results in abnormal IR splicing. Our results suggest that CUG-BP regulates the equilibrium of splice site selection by antagonizing the facilitatory activity of MBNL1 and MBNL2 on IR exon 11 splicing in a dose-dependent manner. We have shown that CUG-BP levels are elevated in DM1 cells by mechanisms that are independent of MBNL1 and MBNL2 loss. Importantly, rescue experiments in DM1 myoblasts demonstrated that loss of MBNL1 function is the key event, whereas the overexpression of CUG-BP plays a secondary role in the aberrant alternative splicing of IR RNA in DM1. Small interfering RNA-mediated down-regulation of MBNL1, MBNL2, and CUG-BP in DM1 myoblasts demonstrated that MBNL1 plays a critical role in the maintenance of DM1 focus integrity. Thus, these experiments demonstrate that sequestration of MBNL1 by the expanded CUG repeats is the primary determinant of both DM1 focus formation and the abnormal splicing of the IR RNA in DM1 myoblasts. The data therefore support MBNL1-mediated therapy for DM1.D009223Myotonic Dystrophy
CELF120051426Heart-specific overexpression of CUGBP1 reproduces functional and molecular abnormalities of myotonic dystrophy type 1.Myotonic dystrophy type 1 (DM1) is caused by a CTG expansion within the 3'-untranslated region of the DMPK gene. The predominant mechanism of pathogenesis is a toxic gain of function of CUG repeat containing RNA transcribed from the expanded allele. The molecular mechanisms by which the RNA containing expanded repeats produce pathogenic effects include: sequestration of muscleblind-like 1 (MBNL1) protein and up-regulation of CUG binding protein 1 (CUGBP1). MBNL1 and CUGBP1 are RNA binding proteins that regulate alternative splicing transitions during development. Altered functions of these proteins in DM1 lead to misregulated splicing of their target genes, resulting in several features of the disease. The role of MBNL1 depletion in DM1 is well established through a mouse knock-out model that reproduces many disease features. Here we directly test the hypothesis that CUGBP1 up-regulation also contributes to manifestations of DM1. Using tetracycline-inducible CUGBP1 and heart-specific reverse tetracycline trans-activator transgenes, we expressed human CUGBP1 in adult mouse heart. Our results demonstrate that up-regulation of CUGBP1 is sufficient to reproduce molecular, histopathological and functional changes observed in a previously described DM1 mouse model that expresses expanded CUG RNA repeats as well as in individuals with DM1. These results strongly support a role for CUGBP1 up-regulation in DM1 pathogenesis.D001835Body Weight
CELF120051426Heart-specific overexpression of CUGBP1 reproduces functional and molecular abnormalities of myotonic dystrophy type 1.Myotonic dystrophy type 1 (DM1) is caused by a CTG expansion within the 3'-untranslated region of the DMPK gene. The predominant mechanism of pathogenesis is a toxic gain of function of CUG repeat containing RNA transcribed from the expanded allele. The molecular mechanisms by which the RNA containing expanded repeats produce pathogenic effects include: sequestration of muscleblind-like 1 (MBNL1) protein and up-regulation of CUG binding protein 1 (CUGBP1). MBNL1 and CUGBP1 are RNA binding proteins that regulate alternative splicing transitions during development. Altered functions of these proteins in DM1 lead to misregulated splicing of their target genes, resulting in several features of the disease. The role of MBNL1 depletion in DM1 is well established through a mouse knock-out model that reproduces many disease features. Here we directly test the hypothesis that CUGBP1 up-regulation also contributes to manifestations of DM1. Using tetracycline-inducible CUGBP1 and heart-specific reverse tetracycline trans-activator transgenes, we expressed human CUGBP1 in adult mouse heart. Our results demonstrate that up-regulation of CUGBP1 is sufficient to reproduce molecular, histopathological and functional changes observed in a previously described DM1 mouse model that expresses expanded CUG RNA repeats as well as in individuals with DM1. These results strongly support a role for CUGBP1 up-regulation in DM1 pathogenesis.D002311Cardiomyopathy, Dilated
CELF120051426Heart-specific overexpression of CUGBP1 reproduces functional and molecular abnormalities of myotonic dystrophy type 1.Myotonic dystrophy type 1 (DM1) is caused by a CTG expansion within the 3'-untranslated region of the DMPK gene. The predominant mechanism of pathogenesis is a toxic gain of function of CUG repeat containing RNA transcribed from the expanded allele. The molecular mechanisms by which the RNA containing expanded repeats produce pathogenic effects include: sequestration of muscleblind-like 1 (MBNL1) protein and up-regulation of CUG binding protein 1 (CUGBP1). MBNL1 and CUGBP1 are RNA binding proteins that regulate alternative splicing transitions during development. Altered functions of these proteins in DM1 lead to misregulated splicing of their target genes, resulting in several features of the disease. The role of MBNL1 depletion in DM1 is well established through a mouse knock-out model that reproduces many disease features. Here we directly test the hypothesis that CUGBP1 up-regulation also contributes to manifestations of DM1. Using tetracycline-inducible CUGBP1 and heart-specific reverse tetracycline trans-activator transgenes, we expressed human CUGBP1 in adult mouse heart. Our results demonstrate that up-regulation of CUGBP1 is sufficient to reproduce molecular, histopathological and functional changes observed in a previously described DM1 mouse model that expresses expanded CUG RNA repeats as well as in individuals with DM1. These results strongly support a role for CUGBP1 up-regulation in DM1 pathogenesis.D020964Embryo Loss
CELF120051426Heart-specific overexpression of CUGBP1 reproduces functional and molecular abnormalities of myotonic dystrophy type 1.Myotonic dystrophy type 1 (DM1) is caused by a CTG expansion within the 3'-untranslated region of the DMPK gene. The predominant mechanism of pathogenesis is a toxic gain of function of CUG repeat containing RNA transcribed from the expanded allele. The molecular mechanisms by which the RNA containing expanded repeats produce pathogenic effects include: sequestration of muscleblind-like 1 (MBNL1) protein and up-regulation of CUG binding protein 1 (CUGBP1). MBNL1 and CUGBP1 are RNA binding proteins that regulate alternative splicing transitions during development. Altered functions of these proteins in DM1 lead to misregulated splicing of their target genes, resulting in several features of the disease. The role of MBNL1 depletion in DM1 is well established through a mouse knock-out model that reproduces many disease features. Here we directly test the hypothesis that CUGBP1 up-regulation also contributes to manifestations of DM1. Using tetracycline-inducible CUGBP1 and heart-specific reverse tetracycline trans-activator transgenes, we expressed human CUGBP1 in adult mouse heart. Our results demonstrate that up-regulation of CUGBP1 is sufficient to reproduce molecular, histopathological and functional changes observed in a previously described DM1 mouse model that expresses expanded CUG RNA repeats as well as in individuals with DM1. These results strongly support a role for CUGBP1 up-regulation in DM1 pathogenesis.D006330Heart Defects, Congenital
CELF120051426Heart-specific overexpression of CUGBP1 reproduces functional and molecular abnormalities of myotonic dystrophy type 1.Myotonic dystrophy type 1 (DM1) is caused by a CTG expansion within the 3'-untranslated region of the DMPK gene. The predominant mechanism of pathogenesis is a toxic gain of function of CUG repeat containing RNA transcribed from the expanded allele. The molecular mechanisms by which the RNA containing expanded repeats produce pathogenic effects include: sequestration of muscleblind-like 1 (MBNL1) protein and up-regulation of CUG binding protein 1 (CUGBP1). MBNL1 and CUGBP1 are RNA binding proteins that regulate alternative splicing transitions during development. Altered functions of these proteins in DM1 lead to misregulated splicing of their target genes, resulting in several features of the disease. The role of MBNL1 depletion in DM1 is well established through a mouse knock-out model that reproduces many disease features. Here we directly test the hypothesis that CUGBP1 up-regulation also contributes to manifestations of DM1. Using tetracycline-inducible CUGBP1 and heart-specific reverse tetracycline trans-activator transgenes, we expressed human CUGBP1 in adult mouse heart. Our results demonstrate that up-regulation of CUGBP1 is sufficient to reproduce molecular, histopathological and functional changes observed in a previously described DM1 mouse model that expresses expanded CUG RNA repeats as well as in individuals with DM1. These results strongly support a role for CUGBP1 up-regulation in DM1 pathogenesis.D009223Myotonic Dystrophy
CELF124376746Overexpression of CUGBP1 in skeletal muscle from adult classic myotonic dystrophy type 1 but not from myotonic dystrophy type 2.Myotonic dystrophy type 1 (DM1) and type 2 (DM2) are progressive multisystemic disorders caused by similar mutations at two different genetic loci. The common key feature of DM pathogenesis is nuclear accumulation of mutant RNA which causes aberrant alternative splicing of specific pre-mRNAs by altering the functions of two RNA binding proteins, MBNL1 and CUGBP1. However, DM1 and DM2 show disease-specific features that make them clearly separate diseases suggesting that other cellular and molecular pathways may be involved. In this study we have analysed the histopathological, and biomolecular features of skeletal muscle biopsies from DM1 and DM2 patients in relation to presenting phenotypes to better define the molecular pathogenesis. Particularly, the expression of CUGBP1 protein has been examined to clarify if this factor may act as modifier of disease-specific manifestations in DM. The results indicate that the splicing and muscle pathological alterations observed are related to the clinical phenotype both in DM1 and in DM2 and that CUGBP1 seems to play a role in classic DM1 but not in DM2. In conclusion, our results indicate that multisystemic disease spectrum of DM pathologies may not be explained only by spliceopathy thus confirming that the molecular pathomechanism of DM is more complex than that actually suggested.D009223Myotonic Dystrophy


Clinically important variants in CELF1


check button (ClinVar, 04/20/2024)
accession_iduniprot_idgene_nameTypeVariantClinical_significance