scholarly journals Identification of Protein Synthesis Elongation Factor G as a 4.5 S RNA-binding Protein inEscherichia coli

1996 ◽  
Vol 271 (22) ◽  
pp. 13162-13168 ◽  
Author(s):  
Toshinori Shibata ◽  
Yasuyuki Fujii ◽  
Yoshio Nakamura ◽  
Kouji Nakamura ◽  
Kunio Yamane
2009 ◽  
Vol 87 (5) ◽  
pp. 1069-1079 ◽  
Author(s):  
Michel Gravel ◽  
Francis Robert ◽  
Vicky Kottis ◽  
Imed-Eddine Gallouzi ◽  
Jerry Pelletier ◽  
...  

2006 ◽  
Vol 26 (7) ◽  
pp. 2716-2727 ◽  
Author(s):  
Krystyna Mazan-Mamczarz ◽  
Ashish Lal ◽  
Jennifer L. Martindale ◽  
Tomoko Kawai ◽  
Myriam Gorospe

ABSTRACT The RNA-binding protein TIAR has been proposed to inhibit protein synthesis transiently by promoting the formation of translationally silent stress granules. Here, we report the selective binding of TIAR to several mRNAs encoding translation factors such as eukaryotic initiation factor 4A (eIF4A) and eIF4E (translation initiation factors), eEF1B (a translation elongation factor), and c-Myc (which transcriptionally controls the expression of numerous translation regulatory proteins). TIAR bound the 3′-untranslated regions of these mRNAs and potently suppressed their translation, particularly in response to low levels of short-wavelength UV (UVC) irradiation. The UVC-imposed global inhibition of the cellular translation machinery was significantly relieved after silencing of TIAR expression. We propose that the TIAR-mediated inhibition of translation factor expression elicits a sustained repression of protein biosynthesis in cells responding to stress.


2016 ◽  
Vol 25 (9) ◽  
pp. 1710-1721 ◽  
Author(s):  
Amanda J. Blythe ◽  
Berra Yazar-Klosinski ◽  
Michael W. Webster ◽  
Eefei Chen ◽  
Marylène Vandevenne ◽  
...  

eLife ◽  
2017 ◽  
Vol 6 ◽  
Author(s):  
Gillian A Gray ◽  
Nicola K Gray

An RNA-binding protein called PABPC1 has an important role in determining protein synthesis rates and hypertrophy in the heart.


1989 ◽  
Vol 259 (1) ◽  
pp. 277-281 ◽  
Author(s):  
N Kenmochi ◽  
Y Takahashi ◽  
N L Sato

The effects of an affinity-purified polyclonal antibody to Artemia salina ribosomal protein L5 on protein synthesis in vitro were examined. The antibody interacted with 60 S subunits more strongly than with 80 S ribosomes, and inhibited reassociation of ribosomal subunits to some extent at 5 mM-Mg2+ but not at 10 mM. Polyphenylalanine synthesis in vitro at 10 mM-Mg2+ was significantly inhibited, especially when the antibody was first preincubated with 60 S subunits prior to the assay. The incorporation of amino acid directed by globin mRNA was inhibited only when the preincubation with 60 S subunits was carried out. On the other hand, no effect was detected on elongation factor 2- and 60 S subunit-dependent uncoupled GTPase activity. These results suggest that L5 is probably located at or near the subunit interface and may play an important role in protein synthesis.


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