2019
The vault RNA of Trypanosoma brucei plays a role in the production of trans-spliced mRNA
Kolev NG, Rajan KS, Tycowski KT, Toh JY, Shi H, Lei Y, Michaeli S, Tschudi C. The vault RNA of Trypanosoma brucei plays a role in the production of trans-spliced mRNA. Journal Of Biological Chemistry 2019, 294: 15559-15574. PMID: 31439669, PMCID: PMC6816085, DOI: 10.1074/jbc.ra119.008580.Peer-Reviewed Original ResearchConceptsTelomerase-associated protein 1Vault RNAY RNAsRNA quality controlRNA polymerase IIISmall nuclear RNATrans-spliced mRNAPermeabilized cell systemNcRNA repertoireRNP biogenesisMRNA metabolismRNA speciesSequence similarityRNA classesMammalian cellsNuclear RNAPolymerase IIIRo functionTrypanosoma bruceiVtRNAsGene expressionRo proteinBloodstream formsRNACell nuclei
2017
The Canonical Poly (A) Polymerase PAP1 Polyadenylates Non-Coding RNAs and Is Essential for snoRNA Biogenesis in Trypanosoma brucei
Chikne V, Gupta SK, Doniger T, K. SR, Cohen-Chalamish S, Ben-Asher HW, Kolet L, Yahia NH, Unger R, Ullu E, Kolev NG, Tschudi C, Michaeli S. The Canonical Poly (A) Polymerase PAP1 Polyadenylates Non-Coding RNAs and Is Essential for snoRNA Biogenesis in Trypanosoma brucei. Journal Of Molecular Biology 2017, 429: 3301-3318. PMID: 28456523, DOI: 10.1016/j.jmb.2017.04.015.Peer-Reviewed Original ResearchConceptsNon-coding RNAsPoly (ADP-ribose) polymeraseUnique RNA processing mechanismsCis-spliced intronsRNA processing mechanismsSmall nucleolar RNAsLong non-coding RNAsPolyadenylation of mRNAParasite Trypanosoma bruceiSnoRNA biogenesisTrans splicingPrecursor snoRNASnoRNA processingNucleolar RNAsPAP1Trypanosoma bruceiPolyadenylationMajor substrateSnoRNAsTrypanosoma cruziPAP2RNAPolymerase Pap1TrypanosomesCausative agent
2015
Genome-wide analysis of small nucleolar RNAs of Leishmania major reveals a rich repertoire of RNAs involved in modification and processing of rRNA
Eliaz D, Doniger T, Tkacz ID, Biswas VK, Gupta SK, Kolev NG, Unger R, Ullu E, Tschudi C, Michaeli S. Genome-wide analysis of small nucleolar RNAs of Leishmania major reveals a rich repertoire of RNAs involved in modification and processing of rRNA. RNA Biology 2015, 12: 1222-1255. PMID: 25970223, PMCID: PMC4829279, DOI: 10.1080/15476286.2015.1038019.Peer-Reviewed Original ResearchConceptsSmall nucleolar RNAsNucleolar RNAsGenome-wide analysisRNA processing mechanismsRRNA secondary structurePost-transcriptional levelCore proteinProcessing of rRNARNA-seq analysisFunctional homologueGene clusterRNA speciesTrypanosoma bruceiSnoRNAsComplete repertoireGene expressionRRNA cleavageAnalogous functionsSecondary structureRNAProtozoan parasiteRich repertoireOrganismsSpeciesProtein
2014
The emerging role of RNA‐binding proteins in the life cycle of Trypanosoma brucei
Kolev NG, Ullu E, Tschudi C. The emerging role of RNA‐binding proteins in the life cycle of Trypanosoma brucei. Cellular Microbiology 2014, 16: 482-489. PMID: 24438230, PMCID: PMC3974610, DOI: 10.1111/cmi.12268.Peer-Reviewed Original ResearchConceptsParasitic protozoan Trypanosoma bruceiIdentification of RBPsTargets of RBPsSpecific gene networksProtozoan Trypanosoma bruceiPost-transcriptional mechanismsGene regulatory networksGene expression patternsRelated trypanosomatidsTranscriptional machineryCellular fateGene networksRegulatory networksTrypanosoma bruceiExpression patternsRegulatory mechanismsDifferent hostsRBPsLife cyclePathogenic organismsRNAOrganismsProteinDifferent environmentsCrucial role
2009
snoRNAs in Giardia lamblia: a novel role in RNA silencing?
Kolev NG, Ullu E. snoRNAs in Giardia lamblia: a novel role in RNA silencing? Trends In Parasitology 2009, 25: 348-350. PMID: 19616476, DOI: 10.1016/j.pt.2009.05.001.Peer-Reviewed Original Research
2008
Conserved motifs in both CPSF73 and CPSF100 are required to assemble the active endonuclease for histone mRNA 3′‐end maturation
Kolev NG, Yario TA, Benson E, Steitz JA. Conserved motifs in both CPSF73 and CPSF100 are required to assemble the active endonuclease for histone mRNA 3′‐end maturation. EMBO Reports 2008, 9: 1013-1018. PMID: 18688255, PMCID: PMC2572124, DOI: 10.1038/embor.2008.146.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid MotifsAmino Acid SequenceBase SequenceCell LineCleavage And Polyadenylation Specificity FactorConserved SequenceEndonucleasesEnzyme ActivationHeLa CellsHistonesHumansMolecular Sequence DataProtein Structure, TertiaryProtein SubunitsRNA 3' End ProcessingRNA PrecursorsRNA, MessengerConceptsPre-messenger RNAPolyadenylation specificity factorMammalian proteinsRNase ZConserved motifsHistone mRNASpecificity factorEndonucleolytic cleavageActive endonucleaseEndonuclease activityMBL familyComplex machineryMessenger RNAPoint mutationsCPSF73CPSF100Process of maturationMaturation processRNAProteinMotifMRNAMaturationEukaryotesCleavage