Expression of amplified DNA sequences for ornithine transcarbamylase in HeLa cells: arginine residues may be required for mitochondrial import of enzyme precursor.
Horwich A, Fenton W, Firgaira F, Fox J, Kolansky D, Mellman I, Rosenberg L. Expression of amplified DNA sequences for ornithine transcarbamylase in HeLa cells: arginine residues may be required for mitochondrial import of enzyme precursor. Journal Of Cell Biology 1985, 100: 1515-1521. PMID: 3988798, PMCID: PMC2113848, DOI: 10.1083/jcb.100.5.1515.Peer-Reviewed Original ResearchConceptsMitochondrial importOTC precursorsHeLa cellsOrnithine transcarbamylaseArginine residuesMouse dihydrofolate reductaseNH2-terminal leader sequenceRate of importArginine analog canavanineViral regulatory elementsImmunoprecipitation of extractsMitochondrial localizationCDNA sequenceRegulatory elementsLeader sequenceDNA sequencesEnzyme precursorsMitochondrial enzymesCell extractsDihydrofolate reductaseEnzymatic activityBlot analysisNormal precursorsResiduesSubunitsA leader peptide is sufficient to direct mitochondrial import of a chimeric protein.
Horwich A, Kalousek F, Mellman I, Rosenberg L. A leader peptide is sufficient to direct mitochondrial import of a chimeric protein. The EMBO Journal 1985, 4: 1129-1135. PMID: 3891325, PMCID: PMC554314, DOI: 10.1002/j.1460-2075.1985.tb03750.x.Peer-Reviewed Original ResearchConceptsChimeric precursor proteinsMitochondrial importLeader peptideChimeric precursorsDihydrofolate reductaseMost mitochondrial proteinsPost-translational importMutant CHO cell linesCloned nucleotide sequencePrecursor proteinOrnithine transcarbamylaseCell-free systemCHO cell linesEnzyme dihydrofolate reductaseMitochondrial proteinsMitochondrial localizationRegulatory elementsLeader sequenceNucleotide sequenceStable transformantsAdditional proteinsSelectable markerChimeric proteinLarger precursorIntact cellsA cDNA clone for the precursor of rat mitochondrial ornithine transcarbamylase: comparison of rat and human leader sequences and conservation of catalytic sites
Kraus J, Hodges P, Williamson C, Horwich A, Kalousek F, Williams K, Rosenberg L. A cDNA clone for the precursor of rat mitochondrial ornithine transcarbamylase: comparison of rat and human leader sequences and conservation of catalytic sites. Nucleic Acids Research 1985, 13: 943-952. PMID: 3839075, PMCID: PMC341044, DOI: 10.1093/nar/13.3.943.Peer-Reviewed Original ResearchConceptsAmino acid sequenceLeader sequenceAcid sequenceBasic residuesAmino-terminal leader sequenceE. coliComplete sequence homologyAmino acid residuesProtein sequence dataOrnithine transcarbamylaseCDNA clonesSequence dataDNA complementaryOrnithine transcarbamylasesSequence homologyEntire proteinHuman enzymeAcid residuesTranscarbamylasesComplementary DNAAmino acidsMessenger RNARat enzymeNucleotidesCatalytic site