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Evolutionary Patterns of tRNA Alteration in Various Organisms

Explore the loss and import of tRNAs from the cytoplasm in diverse species, impacting genetic coding processes. Analyzing changes from Ile to Met and more.

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Evolutionary Patterns of tRNA Alteration in Various Organisms

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  1. Acanthamoeba castellanii AUA : Ile -> Met AUA : Ile -> unassigned Loss of many tRNAs + import from cytoplasm Dictyostelium discoideum Amoebidium parasiticum 100/97 Monosiga brevicolis Metridium senile 100/20 Metazoa Drosophila melanogaster 100/98 100/100 Homo sapiens Rhyzophidium sp. 136 100/100 Spizellomyces punctatus Chytridio-mycota Hyaloraphidium curvatum 100/100 Monoblepharella sp. JEL15 100/100 100/100 Harpochytrium sp. JEL 105 100/100 Harpochytrium sp. JEL 94 100/96 Allomyces macrogynus Mortierella verticillata Zygomycota 99/94 Rhizopus oryzae 100/36 Basidiomycota Crinipellis perniciosa 100/85 100/100 Schizophyllum commune Penicillium marneffei UGA : Stop -> Trp Podospora anserina 100/100 100/96 100/99 Hypocrea jecorina UAG : Stop -> Leu 100/100 Lecanicillium muscarium Schizosaccharomyces japonicus 100/97 CGN : Arg -> unassigned Ascomycota Schizosaccharomyces octosporus 100/100 100/100 Schizosaccharomyces pombe CUN : Leu -> Thr Loss of tRNA-Ile(CAU) 100/93 Yarrowia lipolytica Candida stellata 100/99 Candida albicans CUN : Thr-> unassigned 100/100 100/0 Candida parpsilosis Pichia canadensis 100/82 Ashbya gossypii 100/100 Kluyveromyces lactis 100/83 100/100 Kluyveromyces thermotolerans Candida glabrata 100/90 0.1 Saccharomyces cerevisiae 100/100 100/47 Saccharomyces castellii Saccharomyces servazzii 100/85

  2. UGA : Stop -> Trp UAG : Stop -> Leu 86/15 UCA : Ser -> Stop Rhodophyta 100/100 100/100 Loss of many tRNAs + import from cytoplasm 100/45 100/100 Streptophyta 100/100 100/100 100/84 99/0 100/1 Chlorophyta 100/98 100/100 100/100 100/100

  3. Cryptophyta Haptophyceae Heterolobosea Alveolata UGA : Stop -> Trp Stramenopiles Loss of many tRNAs + import from cytoplasm UUA : Leu -> Stop

  4. Porifera Cnidaria Arthropoda Nematoda Lophotrochozoa Platyhelminthes Echinodermata Hemichordata Urochordata Cephalochordata Craniata Loss of tRNA-Ile(CAU) but AUA remains Ile Loss of tRNA-Arg(UCU) and AGR : Arg -> Ser Loss of many tRNAs + import from cytoplasm AUA : Ile -> Met AGR : Ser -> Stop AGR : Ser -> Gly AAA : Lys -> Asn AAA : Lys -> unassigned

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