Nuclear proteins from Leishmania tarentolae can bind to a putative tRNA promoter element
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چکیده
منابع مشابه
The mitochondrial RNA ligase from Leishmania tarentolae can join RNA molecules bridged by a complementary RNA.
A biochemical characterization was performed with a partially purified RNA ligase from isolated mitochondria of Leishmania tarentolae. This ligase has a K(m) of 25 +/- 0.75 nM and a V(max) of 1.0 x 10(-4) +/- 2.4 x 10(-4) nmol/min when ligating a nicked double-stranded RNA substrate. Ligation was negatively affected by a gap between the donor and acceptor nucleotides. The catalytic efficiency o...
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We have previously shown that the expression of a rice gene, rab-16A, is responsive to abscisic acid (ABA) and osmotic stress in plant tissues and cultured suspension cells. We demonstrate here that transcriptional elements between -294 and -52 of this gene are sufficient to confer ABA-dependent expression on the chloramphenicol acetyltransferase reporter gene in rice protoplasts. Sequence moti...
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In Leishmania tarentolae, all mitochondrial tRNAs are encoded in the nuclear genome and imported from the cytosol. It is known that tRNA(Glu)(UUC) and tRNA(Gln)(UUG) are localized in both cytosol and mitochondria. We investigated structural differences between affinity-isolated cytosolic (cy) and mitochondrial (mt) tRNAs for glutamate and glutamine by mass spectrometry. A unique modification di...
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متن کاملLeishmania tarentolae contains distinct cytosolic and mitochondrial glutaminyl-tRNA synthetase activities.
The intracellular distribution of glutaminyl-tRNA synthetases and their role in mitochondrial tRNA import were evaluated in the ancient eukaryote Leishmania tarentolae. The following results were obtained: (i) Glutaminyl-tRNA synthetase was detected in leishmanial mitochondria. This was unexpected because it has been postulated that, in organelles, Gln-tRNAGln is not formed by direct acylation ...
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ژورنال
عنوان ژورنال: The FASEB Journal
سال: 2008
ISSN: 0892-6638,1530-6860
DOI: 10.1096/fasebj.22.1_supplement.1003.14