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Wyszukujesz frazę "ribosomal subunit" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-9 z 9
    Tytuł:
    Additional copies of the NOG2 and IST2 genes suppress the deficiency of cohesin Irr1p/Scc3p in Saccharomyces cerevisiae.
    Autorzy:
    Białkowska, Agnieszka
    Kurlandzka, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/1043770.pdf
    Data publikacji:
    2002
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    60S ribosomal subunit
    sister chromatid cohesion
    salt tolerance
    Opis:
    The protein encoded by the IRR1/SCC3 gene is an element of the cohesin complex of Saccharomyces cerevisiae, responsible for establishing and maintaining sister chromatid cohesion during mitotic cell division. We noticed previously that lowering the level of expression of IRR1/SCC3 affects colony formation on solid support. Here we describe two dosage suppressors (IST2, NOG2) overcoming the inability to form colonies of an Irr1p-deficient strain. Ist2 is probably involved in osmotolerance, Nog2p is a putative GTPase required for 60S ribosomal subunit maturation, but may also participate in mRNA splicing.
    Źródło:
    Acta Biochimica Polonica; 2002, 49, 2; 421-425
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The KRR1 gene encodes a protein required for 18S rRNA synthesis and 40S ribosomal subunit assembly in Saccharomyces cerevisiae.
    Autorzy:
    Gromadka, Robert
    Rytka, Joanna
    Powiązania:
    https://bibliotekanauki.pl/articles/1044220.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    ribosome
    rRNA processing
    yeast
    Opis:
    The newly discovered Saccharomyces cerevisiae gene KRR1 (YCL059c) encodes a protein essential for cell viability. Krr1p contains a motif of clustered basic amino acids highly conserved in the evolutionarly distant species from yeast to human. We demonstrate that Krr1p is localized in the nucleolus. The KRR1 gene is highly expressed in dividing cells and its expression ceases almost completely when cells enter the stationary phase. In vivo depletion of Krr1p leads to drastic reduction of 40S ribosomal subunits due to defective 18S rRNA synthesis. We propose that Krr1p is required for proper processing of pre-rRNA and the assembly of preribosomal 40S subunits.
    Źródło:
    Acta Biochimica Polonica; 2000, 47, 4; 993-1005
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Functional conservation between yeast and plant mitochondrial m-AAA proteases
    Autorzy:
    Skibior, R.
    Kolodziejczak, M.
    Janska, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/80313.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    FtsH protease
    bifunctional enzyme
    ATPase
    plant mitochondrion
    yeast
    AAA protease
    Arabidopsis
    ribosomal subunit
    immunoblotting
    biogenesis
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Broad Taxon Sampling of Ciliates Using Mitochondrial Small Subunit Ribosomal DNA
    Autorzy:
    DUNTHORN, Micah
    HALL, Meaghan
    Foissner, Wilhelm
    STOECK, Thorsten
    KATZ, Laura A.
    Powiązania:
    https://bibliotekanauki.pl/articles/763463.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
    Tematy:
    Ciliophora, Colpodea, mitochondria, phylogeny, Phyllopharyngea, SSU-rDNA
    Opis:
    Mitochondrial SSU-rDNA has been used recently to infer phylogenetic relationships among a few ciliates. Here, this locus is compared with nuclear SSU-rDNA for uncovering the deepest nodes in the ciliate tree of life using broad taxon sampling. Nuclear and mitochondrial SSU-rDNA reveal the same relationships for nodes well-supported in previously-published nuclear SSU-rDNA studies, although support for many nodes in the mitochondrial SSU-rDNA tree are low. Mitochondrial SSU-rDNA infers a monophyletic Colpodea with high node support only from Bayesian inference, and in the concatenated tree (nuclear plus mitochondrial SSU-rDNA) monophyly of the Colpodea is supported with moderate to high node support from maximum likelihood and Bayesian inference. In the monophyletic Phyllopharyngea, the Suctoria is inferred to be sister to the Cyrtophora in the mitochondrial, nuclear, and concatenated SSU-rDNA trees with moderate to high node support from maximum likelihood and Bayesian inference. Together these data point to the power of adding mitochondrial SSU-rDNA as a standard locus for ciliate molecular phylogenetic inferences.
    Źródło:
    Acta Protozoologica; 2014, 53, 2
    1689-0027
    Pojawia się w:
    Acta Protozoologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ultrastructure and SSU rDNA Phylogeny of Paraphysomonas vestita (Stokes) De Saedeleer Isolated from Laguna de Bay, Philippines
    Autorzy:
    Petronio, Joy Ann G.
    Rivera, Windell L.
    Powiązania:
    https://bibliotekanauki.pl/articles/763493.pdf
    Data publikacji:
    2010
    Wydawca:
    Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
    Tematy:
    Paraphysomonas vestita, chrysophyte, protist, ultrastructure, small subunit ribosomal RNA gene, Philippines
    Opis:
    Paraphysomonas vestita is a unicellular, colorless, silica-scaled chrysophyte that plays an important ecological role in freshwater microbial communities as a consumer of prokaryotic and eukaryotic prey. There is little biogeographical information for this minute protist despite its significant role in aquatic food webs. In addition, the phylogenetic relationship of P. vestita to other taxa is unclear as P. vestita may be polyphyletic or a cryptic species complex. In this study, a clonal isolate from a freshwater sample of Laguna de Bay, Philippines was subjected to morphological study by electron microscopy and its small subunit ribosomal RNA (SSU rRNA) gene was sequenced. Morphological studies showed that the isolate possesses two unequal flagella emerging from the anterior part of the cell. Negative staining revealed the structure of the scales which consist of a baseplate with slightly thickened rim. The narrowing spine arises from the center of the baseplate. These results agree with previously studied isolates of P. vestita. The 18S rRNA gene sequence of the isolate had a very high similarity (99%) to P. vestita strain PV10. Phylogenetic analysis also showed that the isolate clustered with other Paraphysomonas sequences with high bootstrap support. Phylogenetic studies confirmed that P. vestita may be polyphyletic. No studies on the ultrastructure and phylogeny of a silica-scaled chrysophyte isolated in the Philippines have been reported so far. Results from this study may contribute to further ultrastructural and phylogenetic studies on aquatic flagellates and specifically to a revision of this potentially polyphyletic species.
    Źródło:
    Acta Protozoologica; 2010, 49, 2
    1689-0027
    Pojawia się w:
    Acta Protozoologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Morphology and Molecular Phylogeny of Pseudouroleptus jejuensis nov. spec., a New Soil Ciliate (Ciliophora, Spirotrichea) from South Korea
    Autorzy:
    JUNG, Jae-Ho
    Park, Kyung-Min
    Min, Gi-Sik
    Powiązania:
    https://bibliotekanauki.pl/articles/763471.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
    Tematy:
    Pseudouroleptus jejuensis, soil ciliate, morphology, small subunit ribosomal RNA gene, oxytrichid, South Korea
    Opis:
    A new soil ciliate, Pseudouroleptus jejuensis, was discovered from Jeju Island, South Korea and described based on live observation, protargol impregnation, and SSU rRNA gene sequence analyses. Pseudouroleptus jejuensis differs from other congeneric species mainly by number of dorsal kineties (5 vs. 4). Based on our observation of late dividers, we confirm that the dorsal kinety anlage 3 forms 3 kineties (i.e., dorsal kineties 3–5), and the dorsal kinety anlagen 1–3 form 3–5/1–2/0 caudal cirri, respectively. Our gene trees support the assignment of this new species in Pseudouroleptus to full supporting values.
    Źródło:
    Acta Protozoologica; 2014, 53, 2
    1689-0027
    Pojawia się w:
    Acta Protozoologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Halogenated benzimidazole inhibitors of phosphorylation, in vitro and in vivo, of the surface acidic proteins of the yeast ribosomal 60S subunit by endogenous protein kinases CK-II and PK60S
    Autorzy:
    Szyszka, Ryszard
    Boguszewska, Aleksandra
    Shugar, David
    Grankowski, Nikodem
    Powiązania:
    https://bibliotekanauki.pl/articles/1045159.pdf
    Data publikacji:
    1996
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Źródło:
    Acta Biochimica Polonica; 1996, 43, 2; 389-396
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structure and functions of 5S rRNA.
    Autorzy:
    Barciszewska, Mirosława
    Szymański, Maciej
    Erdmann, Volker
    Barciszewski, Jan
    Powiązania:
    https://bibliotekanauki.pl/articles/1044186.pdf
    Data publikacji:
    2001
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    50S subunit structure
    ribosomal 5S RNA
    5S rRNA
    crystal structure
    Opis:
    The ribosome is a macromolecular assembly that is responsible for protein biosynthesis in all organisms. It is composed of two-subunit, ribonucleoprotein particles that translate the genetic material into an encoded polypeptides. The small subunit is the site of codon-anticodon interaction between the messenger RNA (mRNA) and transfer RNA (tRNA) substrates, and the large subunit catalyses peptide bond formation. The peptidyltransferase activity is fulfilled by 23S rRNA, which means that ribosome is a ribozyme. 5S rRNA is a conserved component of the large ribosomal subunit that is thought to enhance protein synthesis by stabilizing ribosome structure. This paper shortly summarises new results obtained on the structure and function of 5S rRNA.
    Źródło:
    Acta Biochimica Polonica; 2001, 48, 1; 191-198
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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