Protein translocation: Checkpoint role for SRP GTPase activation

被引:10
作者
Bange, Gert [1 ]
Wild, Klemens [1 ]
Sinning, Irmgard [1 ]
机构
[1] Univ Heidelberg, Biochem Ctr, INF328, D-69120 Heidelberg, Germany
关键词
D O I
10.1016/j.cub.2007.09.041
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
Co-translational protein targeting by the signal recognition particle (SOD) relies on a complex series of structural rearrangements in the SRP and its receptor (SR). In order to precisely coordinate the individual steps, the GTPases of the SRP and the SR form a unique complex in which GTP hydrolysis is activated in a composite active site. A recent study provides new insights on the link between the GTPases and protein translocation.
引用
收藏
页码:R980 / R982
页数:3
相关论文
共 20 条
  • [1] BAHARI L, 2007, MEMBRANE TARGETING R
  • [2] The crystal structure of the third signal-recognition particle GTPase FlhF reveals a homodimer with bound GTP
    Bange, Gert
    Petzold, Georg
    Wild, Klemens
    Parlitz, Richard O.
    Sinning, Irmgard
    [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2007, 104 (34) : 13621 - 13625
  • [3] Substrate twinning activates the signal recognition particle and its receptor
    Egea, PF
    Shan, SO
    Napetschnig, J
    Savage, DF
    Walter, P
    Stroud, RM
    [J]. NATURE, 2004, 427 (6971) : 215 - 221
  • [4] Heterodimeric GTPase core of the SRP targeting complex
    Focia, PJ
    Shepotinovskaya, IV
    Seidler, JA
    Freymann, DM
    [J]. SCIENCE, 2004, 303 (5656) : 373 - 377
  • [5] Signal recognition particle receptor exposes the ribosomal translocon binding site
    Halic, M
    Gartmann, M
    Schlenker, O
    Mielke, T
    Pool, MR
    Sinning, I
    Beckmann, R
    [J]. SCIENCE, 2006, 312 (5774) : 745 - 747
  • [6] Following the signal sequence from ribosomal tunnel exit to signal recognition particle
    Halic, Mario
    Blau, Michael
    Becker, Thomas
    Mielke, Thorsten
    Pool, Martin R.
    Wild, Klemens
    Sinning, Irmgard
    Beckmann, Roland
    [J]. NATURE, 2006, 444 (7118) : 507 - 511
  • [7] SRP-mediated protein targeting: structure and function revisited
    Luirink, J
    Sinning, I
    [J]. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH, 2004, 1694 (1-3): : 17 - 35
  • [8] PARLITZ R, 2007, ECOLI SRP RECEPTOR F
  • [9] Role of SRP RNA in the GTPase cycles of ffh and FtsY
    Peluso, P
    Shan, SO
    Nock, S
    Herschlag, D
    Walter, P
    [J]. BIOCHEMISTRY, 2001, 40 (50) : 15224 - 15233
  • [10] Co-translational protein targeting catalyzed by the Escherichia coli signal recognition particle and its receptor
    Powers, T
    Walter, P
    [J]. EMBO JOURNAL, 1997, 16 (16) : 4880 - 4886