A novel plant protein interacts with eIF3 and 60S to enhance virus-activated translation reinitiation

نویسندگان

  • Odon Thiébeauld
  • Mikhail Schepetilnikov
  • Hyun-Sook Park
  • Angèle Geldreich
  • Kappei Kobayashi
  • Mario Mario
  • Thomas Hohn
  • Lyubov Ryabova
چکیده

Thank you for submitting your manuscript to the EMBO Journal. Your study has now been seen by three referees and their comments to authors are provided below. As you can see, the referees appreciate the analysis and find the identification of RISK and the characterization of its role in TAV-dependent reinitiation interesting. However, they also raise a number of different issues with the manuscript that would have to be resolved before further consideration here. In particular referee #3 raises concerns regarding the quality of some of the data including the immunofluorescense images, immunoprecipitation and pull down analysis. Also further physiological data in support of the significance of RISP for CaMV replication is needed. As you can see there are many issues that would have to be resolved, however should you be able to address the concerns raised in full then we would be willing to look at revised version. Please note that some of the issues brought up by referee #3 are listed in the general comments and these will have to be addressed. I should remind you that it is EMBO Journal policy to allow a single round of revision only and that, therefore, acceptance or rejection of the manuscript will depend on the completeness of your responses included in the next, final version of the manuscript.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Plant Viral “Reinitiation” Factor Interacts with the Host Translational Machinery

The cauliflower mosaic virus transactivator, TAV, controls translation reinitiation of major open reading frames on polycistronic RNA. We show here that TAV function depends on its association with polysomes and eukaryotic initiation factor eIF3 in vitro and in vivo. TAV physically interacts with eIF3 and the 60S ribosomal subunit. Two proteins mediating these interactions were identified: eIF3...

متن کامل

Control of translation reinitiation on the cauliflower mosaic virus (CaMV) polycistronic RNA.

Translation of the polycistronic 35S RNA of CaMV (cauliflower mosaic virus) occurs via a reinitiation mechanism, which requires TAV (transactivator/viroplasmin). To allow translation reinitiation of the major open reading frames on the polycistronic RNA, TAV interacts with the host translational machinery via eIF3 (eukaryotic initiation factor 3) and the 60S ribosome. Accumulation of TAV and eI...

متن کامل

A new plant protein interacts with eIF3 and 60S to enhance virus-activated translation re-initiation.

The plant viral re-initiation factor transactivator viroplasmin (TAV) activates translation of polycistronic mRNA by a re-initiation mechanism involving translation initiation factor 3 (eIF3) and the 60S ribosomal subunit (60S). QJ;Here, we report a new plant factor-re-initiation supporting protein (RISP)-that enhances TAV function in re-initiation. RISP interacts physically with TAV in vitro a...

متن کامل

Eucaryotic initiation factor 4B controls eIF3-mediated ribosomal entry of viral reinitiation factor.

The cauliflower mosaic virus reinitiation factor TAV interacts with host translation initiation factor 3 (eIF3) and the 60S ribosomal subunit to accomplish translation of polycistronic mRNAs. Interaction between TAV and eIF3g is critical for the reinitiation process. Here, we show that eIF4B can preclude formation of the TAV/eIF3 complex via competition with TAV for eIF3g binding; indeed, the e...

متن کامل

Viral factor TAV recruits TOR/S6K1 signalling to activate reinitiation after long ORF translation.

The protein kinase TOR (target-of-rapamycin) upregulates translation initiation in eukaryotes, but initiation restart after long ORF translation is restricted by largely unknown pathways. The plant viral reinitiation factor transactivator-viroplasmin (TAV) exceptionally promotes reinitiation through a mechanism involving retention on 80S and reuse of eIF3 and the host factor reinitiation-suppor...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009