LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 2 of total 2

Search options

  1. Article ; Online: Structural and Mutagenesis Studies Evince the Role of the Extended Protuberant Domain of Ribosomal Protein uL10 in Protein Translation.

    Choi, Kwok-Ho Andrew / Yang, Lei / Lee, Ka-Ming / Yu, Conny Wing-Heng / Banfield, David K / Ito, Kosuke / Uchiumi, Toshio / Wong, Kam-Bo

    Biochemistry

    2019  Volume 58, Issue 36, Page(s) 3744–3754

    Abstract: The lateral stalk of ribosomes constitutes the GTPase-associated center and is responsible for recruiting translation factors to the ribosomes. The eukaryotic stalk contains a P-complex, in which one molecule of uL10 (formerly known as P0) protein binds ... ...

    Abstract The lateral stalk of ribosomes constitutes the GTPase-associated center and is responsible for recruiting translation factors to the ribosomes. The eukaryotic stalk contains a P-complex, in which one molecule of uL10 (formerly known as P0) protein binds two copies of P1/P2 heterodimers. Unlike bacterial uL10, eukaryotic uL10 has an extended protuberant (uL10ext) domain inserted into the N-terminal RNA-binding domain. Here, we determined the solution structure of the extended protuberant domain of
    MeSH term(s) Amino Acid Sequence ; Animals ; Bombyx/chemistry ; Escherichia coli/genetics ; Gene Knockout Techniques ; Mutagenesis, Site-Directed ; Mutation ; Nuclear Magnetic Resonance, Biomolecular ; Protein Biosynthesis ; Protein Domains ; Ribosomal Proteins/chemistry ; Ribosomal Proteins/genetics ; Ribosomes/chemistry ; Saccharomyces cerevisiae/genetics ; Sequence Alignment
    Chemical Substances Ribosomal Proteins
    Language English
    Publishing date 2019-08-22
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1108-3
    ISSN 1520-4995 ; 0006-2960
    ISSN (online) 1520-4995
    ISSN 0006-2960
    DOI 10.1021/acs.biochem.9b00528
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: Structural and Mutagenesis Studies Evince the Role of the Extended Protuberant Domain of Ribosomal Protein uL10 in Protein Translation

    Choi, Kwok-Ho Andrew / Yang, Lei / Lee, Ka-Ming / Yu, Conny Wing-Heng / Banfield, David K / Ito, Kosuke / Uchiumi, Toshio / Wong, Kam-Bo

    Biochemistry. 2019 Aug. 16, v. 58, no. 36

    2019  

    Abstract: The lateral stalk of ribosomes constitutes the GTPase-associated center and is responsible for recruiting translation factors to the ribosomes. The eukaryotic stalk contains a P-complex, in which one molecule of uL10 (formerly known as P0) protein binds ... ...

    Abstract The lateral stalk of ribosomes constitutes the GTPase-associated center and is responsible for recruiting translation factors to the ribosomes. The eukaryotic stalk contains a P-complex, in which one molecule of uL10 (formerly known as P0) protein binds two copies of P1/P2 heterodimers. Unlike bacterial uL10, eukaryotic uL10 has an extended protuberant (uL10ext) domain inserted into the N-terminal RNA-binding domain. Here, we determined the solution structure of the extended protuberant domain of Bombyx mori uL10 by nuclear magnetic resonance spectroscopy. Comparison of the structures of the B. mori uL10ext domain with eRF1-bound and eEF2-bound ribosomes revealed significant structural rearrangement in a “hinge” region surrounding Phe183, a residue conserved in eukaryotic but not in archaeal uL10. ¹⁵N relaxation analyses showed that residues in the hinge region have significantly large values of transverse relaxation rates. To test the role of the conserved phenylalanine residue, we created a yeast mutant strain expressing an F181A variant of uL10. An in vitro translation assay showed that the alanine substitution increased the level of polyphenylalanine synthesis by ∼33%. Taken together, our results suggest that the hinge motion of the uL10ext domain facilitates the binding of different translation factors to the GTPase-associated center during protein synthesis.
    Keywords Archaea ; Bombyx mori ; alanine ; assays ; mutagenesis ; mutants ; nuclear magnetic resonance spectroscopy ; phenylalanine ; protein synthesis ; ribosomal proteins ; ribosomes ; synthesis ; yeasts
    Language English
    Dates of publication 2019-0816
    Size p. 3744-3754.
    Publishing place American Chemical Society
    Document type Article
    Note NAL-light
    ZDB-ID 1108-3
    ISSN 1520-4995 ; 0006-2960
    ISSN (online) 1520-4995
    ISSN 0006-2960
    DOI 10.1021/acs.biochem.9b00528
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

To top