The Noc proteins involved in ribosome synthesis and export contain divergent HEAT repeats

被引:15
作者
Dlakic, M [1 ]
Tollervey, D
机构
[1] Montana State Univ, Dept Microbiol, Bozeman, MT 59717 USA
[2] Univ Edinburgh, Wellcome Trust, Ctr Cell Biol, Edinburgh EH9 3JR, Midlothian, Scotland
关键词
rRNA; ribosome formation; ribonucleoproteins; molecular models; yeast;
D O I
10.1261/rna.5184704
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
The Noc1-4p proteins were previously reported to be involved in intranuclear and nucleocytoplasmic transport of pre-ribosomes. Using fold recognition and structural modeling, we show that Noc1-4p are largely comprised of alpha-helical repeats similar to HEAT repeats. Because other HEAT-repeat proteins play key roles in transport processes, this finding provides a plausible mechanistic explanation for the function of the Noc proteins.
引用
收藏
页码:351 / 354
页数:4
相关论文
共 30 条
  • [1] Gapped BLAST and PSI-BLAST: a new generation of protein database search programs
    Altschul, SF
    Madden, TL
    Schaffer, AA
    Zhang, JH
    Zhang, Z
    Miller, W
    Lipman, DJ
    [J]. NUCLEIC ACIDS RESEARCH, 1997, 25 (17) : 3389 - 3402
  • [2] HEAT REPEATS IN THE HUNTINGTONS-DISEASE PROTEIN
    ANDRADE, MA
    BORK, P
    [J]. NATURE GENETICS, 1995, 11 (02) : 115 - 116
  • [3] Comparison of ARM and HEAT protein repeats
    Andrade, MA
    Petosa, C
    O'Donoghue, SI
    Müller, CW
    Bork, P
    [J]. JOURNAL OF MOLECULAR BIOLOGY, 2001, 309 (01) : 1 - 18
  • [4] Bateman A, 2004, NUCLEIC ACIDS RES, V32, pD138, DOI [10.1093/nar/gkp985, 10.1093/nar/gkr1065, 10.1093/nar/gkh121]
  • [5] Structure of the nuclear transport complex karyopherin-β2-Ran•GppNHp
    Chook, YM
    Blobel, G
    [J]. NATURE, 1999, 399 (6733) : 230 - 237
  • [6] Structure of importin-β bound to tbe IBB domain of importin-α
    Cingolani, G
    Petosa, C
    Weis, K
    Müller, CW
    [J]. NATURE, 1999, 399 (6733) : 221 - 229
  • [7] A large nucleolar U3 ribonucleoprotein required for 18S ribosomal RNA biogenesis
    Dragon, F
    Gallagher, JEG
    Compagnone-Post, PA
    Mitchell, BM
    Porwancher, KA
    Wehner, KA
    Wormsley, S
    Settlage, RE
    Shabanowitz, J
    Osheim, Y
    Beyer, AL
    Hunt, DF
    Baserga, SJ
    [J]. NATURE, 2002, 417 (6892) : 967 - 970
  • [8] Making ribosomes
    Fatica, A
    Tollervey, D
    [J]. CURRENT OPINION IN CELL BIOLOGY, 2002, 14 (03) : 313 - 318
  • [9] Ssf1p prevents premature processing of an early pre-60S ribosomal particle
    Fatica, A
    Cronshaw, AD
    Dlakic, M
    Tollervey, D
    [J]. MOLECULAR CELL, 2002, 9 (02) : 341 - 351
  • [10] 3D-Jury: a simple approach to improve protein structure predictions
    Ginalski, K
    Elofsson, A
    Fischer, D
    Rychlewski, L
    [J]. BIOINFORMATICS, 2003, 19 (08) : 1015 - 1018