Human Nop5/Nop58 is a component common to the box C/D small nucleolar ribonucleoproteins

被引:62
作者
Lyman, SK
Gerace, L
Baserga, SJ
机构
[1] Yale Univ, Sch Med, Dept Therapeut Radiol, New Haven, CT 06520 USA
[2] Yale Univ, Sch Med, Dept Genet, New Haven, CT 06520 USA
[3] Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA
[4] Scripps Res Inst, Dept Mol Biol, La Jolla, CA 92037 USA
关键词
genomics; nucleolus; ribosome biogenesis; snoRNPs;
D O I
10.1017/S1355838299991288
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
We have identified an apparent human homolog of the yeast Nop5/Nop58 protein. hNop5/Nop58 codes for a protein of predicted molecular weight 59.6 kDa and is 46.8% identical to Saccharomyces cerevisiae Nop5/Nop58. Immunofluorescent staining with antibodies against hNop5/Nop58 indicate that it is localized primarily to the nucleolus, and coimmunoprecipitation from nuclear extracts demonstrates that hNop5/Nop58 interacts with the box C/D family of snoRNAs. Thus, hNop5/Nop58 is a common component of the box C/D snoRNPs, and joins fibrillarin as the second such component identified and characterized in metazoans.
引用
收藏
页码:1597 / 1604
页数:8
相关论文
共 33 条
  • [1] The RNA world of the nucleolus: Two major families of small RNAs defined by different box elements with related functions
    Balakin, AG
    Smith, L
    Fournier, MJ
    [J]. CELL, 1996, 86 (05) : 823 - 834
  • [2] DISTINCT MOLECULAR SIGNALS FOR NUCLEAR IMPORT OF THE NUCLEOLAR SNRNA, U3
    BASERGA, SJ
    GILMOREHEBERT, M
    YANG, XDW
    [J]. GENES & DEVELOPMENT, 1992, 6 (06) : 1120 - 1130
  • [3] AN INTACT BOX-C SEQUENCE IN THE U3 SNRNA IS REQUIRED FOR BINDING OF FIBRILLARIN, THE PROTEIN COMMON TO THE MAJOR FAMILY OF NUCLEOLAR SNRNPS
    BASERGA, SJ
    YANG, XDW
    STEITZ, JA
    [J]. EMBO JOURNAL, 1991, 10 (09) : 2645 - 2651
  • [4] In vivo identification of nuclear factors interacting with the conserved elements of box C/D small nucleolar RNAs
    Caffarelli, E
    Losito, M
    Giorgi, C
    Fatica, A
    Bozzoni, I
    [J]. MOLECULAR AND CELLULAR BIOLOGY, 1998, 18 (02) : 1023 - 1028
  • [5] Processing of the intron-encoded U16 and U18 snoRNAs: The conserved C and D boxes control both the processing reaction and the stability of the mature snoRNA
    Caffarelli, E
    Fatica, A
    Prislei, S
    DeGregorio, E
    Fragapane, P
    Bozzoni, I
    [J]. EMBO JOURNAL, 1996, 15 (05) : 1121 - 1131
  • [6] Targeted ribose methylation of RNA in vivo directed by tailored antisense RNA guides
    Cavaille, J
    Nicoloso, M
    Bachellerie, JP
    [J]. NATURE, 1996, 383 (6602) : 732 - 735
  • [7] Mpp10p, a U3 small nucleolar ribonucleoprotein component required for pre-18S rRNA processing in yeast
    Dunbar, DA
    Wormsley, S
    Agentis, TM
    Baserga, SJ
    [J]. MOLECULAR AND CELLULAR BIOLOGY, 1997, 17 (10) : 5803 - 5812
  • [8] England T E, 1980, Methods Enzymol, V65, P65
  • [9] Nucleolar KKE/D repeat proteins Nop56p and Nop58p interact with Nop1p and are required for ribosome biogenesis
    Gautier, T
    Berges, T
    Tollervey, D
    Hurt, E
    [J]. MOLECULAR AND CELLULAR BIOLOGY, 1997, 17 (12) : 7088 - 7098
  • [10] ACCUMULATION OF U14 SMALL NUCLEAR-RNA IN SACCHAROMYCES-CEREVISIAE REQUIRES BOX-C, BOX-D, AND A 5', 3' TERMINAL STEM
    HUANG, GM
    JARMOLOWSKI, A
    STRUCK, JCR
    FOURNIER, MJ
    [J]. MOLECULAR AND CELLULAR BIOLOGY, 1992, 12 (10) : 4456 - 4463