2024
Alternative translation initiation produces synaptic organizer proteoforms with distinct localization and functions
Lee P, Sun Y, Soares A, Fai C, Picciotto M, Guo J. Alternative translation initiation produces synaptic organizer proteoforms with distinct localization and functions. Molecular Cell 2024, 84: 3967-3978.e8. PMID: 39317199, PMCID: PMC11490368, DOI: 10.1016/j.molcel.2024.08.032.Peer-Reviewed Original ResearchTranslation initiation siteNeuronal pentraxin receptorAUG translational initiation siteAlternative translation initiation sitesN-terminal signal sequenceN-terminal transmembrane domainRNA secondary structureAlternative translation initiationN-terminal extensionTranslation initiationSignal sequenceProtein isoformsProtein localizationAUG initiatorTransmembrane domainWidespread mechanismSecondary structureInitiation siteAlternative usageAMPA-type glutamate receptorsProteoformsSecreted factorsProteinReduced AMPA receptorMRNA
2023
Stress promotes RNA G-quadruplex folding in human cells
Kharel P, Fay M, Manasova E, Anderson P, Kurkin A, Guo J, Ivanov P. Stress promotes RNA G-quadruplex folding in human cells. Nature Communications 2023, 14: 205. PMID: 36639366, PMCID: PMC9839774, DOI: 10.1038/s41467-023-35811-x.Peer-Reviewed Original ResearchConceptsHuman cellsMRNA stabilityCellular stress responseRG4 structuresG-quadruplex structuresRNA G4sDynamic regulationG-quadruplex foldingRich nucleic acidsStress responsePermissive conditionsRG4FoldingStress removalRegulatory impactNucleic acidsCellsDimethylsulfateRNAMotifGuanineMRNARegulationStressSequence
2021
Regulation of nonsense-mediated mRNA decay in neural development and disease
Lee PJ, Yang S, Sun Y, Guo JU. Regulation of nonsense-mediated mRNA decay in neural development and disease. Journal Of Molecular Cell Biology 2021, 13: 269-281. PMID: 33783512, PMCID: PMC8339359, DOI: 10.1093/jmcb/mjab022.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsAberrant mRNAsNonsense-mediated mRNA decayMRNA decay functionCore NMD factorsMRNA surveillance mechanismGene regulation mechanismsQuality control mechanismsPremature termination codonNMD factorsPhysiological mRNAsOrganismal levelMRNA decayDevelopmental regulationGenetic evidenceMolecular basisTermination codonBiological functionsRegulation mechanismNeural developmentPhysiological functionsSurveillance mechanismNMDNeurodegenerative diseasesMRNACritical role