منابع مشابه
Retrograde tRNAs
JCB • VOLUME 170 • NUMBER 4 • 2005 512 Linking centrosomes and actin entrosomal changes during cell division are relayed to the actin cytoskeleton by the centrosomal protein CP190, report Sasidhar Chodagam, Jordan Raff (Gurdon Institute, Cambridge, UK), and colleagues. Although CP190 binds to microtubules and was the first centrosomal protein identified in flies, researchers have not detected a...
متن کاملRetrograde movement of tRNAs from the cytoplasm to the nucleus in Saccharomyces cerevisiae.
In eukaryotes, tRNAs transcribed in the nucleus function in cytoplasmic protein synthesis. The Ran-GTP-binding exportin, Los1p/Xpo-t, and additional pathway(s) mediate tRNA transport to the cytoplasm. Although tRNA movement was thought to be unidirectional, recent reports that yeast precursor tRNA splicing occurs in the cytoplasm, whereas fully spliced tRNAs can reside in the nucleus, require t...
متن کاملtRNAs as Antibiotic Targets
Transfer RNAs (tRNAs) are central players in the protein translation machinery and as such are prominent targets for a large number of natural and synthetic antibiotics. This review focuses on the role of tRNAs in bacterial antibiosis. We will discuss examples of antibiotics that target multiple stages in tRNA biology from tRNA biogenesis and modification, mature tRNAs, aminoacylation of tRNA a...
متن کاملtRNAs taking charge
Most bacterial toxins derived from chromosomally encoded toxin-antitoxin (TA) systems that have been studied to date appear to protect cells from relatively short pulses of stress by triggering a reversible state of growth arrest. In contrast to many bacterial toxins that are produced as defense mechanisms and secreted from their hosts, TA toxins exert their protective effect from within the ce...
متن کاملHalobacterium volcanii tRNAs. Identification of 41 tRNAs covering all amino acids, and the sequences of 33 class I tRNAs.
Transfer RNAs of Halobacterium volcanii, an archaebacterium, were separated by two-dimensional gel electrophoresis and sequenced by a combination of methods. A total of 41 tRNAs, at least one for each amino acid, were identified. These are five tRNAs for Leu, four for Gly, three each for Ala, Arg, Pro, and Ser, two each for Glu, Ile, Lys, Met (initiator and noninitiator), Thr, and Val, and one ...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2005
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb1704rr1