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- W166366310 abstract "Research Article15 August 1995free access Identification and analysis of a retinoblastoma binding motif in the replication protein of a plant DNA virus: requirement for efficient viral DNA replication. Q. Xie Q. Xie Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma, Cantoblanco, Madrid, Spain. Search for more papers by this author P. Suárez-López P. Suárez-López Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma, Cantoblanco, Madrid, Spain. Search for more papers by this author C. Gutiérrez C. Gutiérrez Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma, Cantoblanco, Madrid, Spain. Search for more papers by this author Q. Xie Q. Xie Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma, Cantoblanco, Madrid, Spain. Search for more papers by this author P. Suárez-López P. Suárez-López Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma, Cantoblanco, Madrid, Spain. Search for more papers by this author C. Gutiérrez C. Gutiérrez Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma, Cantoblanco, Madrid, Spain. Search for more papers by this author Author Information Q. Xie1, P. Suárez-López1 and C. Gutiérrez1 1Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma, Cantoblanco, Madrid, Spain. The EMBO Journal (1995)14:4073-4082https://doi.org/10.1002/j.1460-2075.1995.tb00079.x PDFDownload PDF of article text and main figures. ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InMendeleyWechatReddit Figures & Info Geminiviruses are plant DNA viruses with small genomes whose replication, except for the viral replication protein (Rep), depends on host proteins and, in this respect, are analogous to animal DNA tumor viruses, e.g. SV40. The mechanism by which these animal viruses create a cellular environment permissive for viral DNA replication involves the binding of a virally encoded oncoprotein, through its LXCXE motif, to the retinoblastoma protein (Rb). We have identified such a LXCXE motif in the Rep protein of wheat dwarf geminivirus (WDV) and we show its functional importance during viral DNA replication. Using a yeast two-hybrid system we have demonstrated that WDV Rep forms stable complexes with p130Rbr2, a member of the Rb family of proteins, and single amino acid changes within the LXCXE motif abolish the ability of WDV Rep to bind to p130Rbr2. The LXCXE motif is conserved in other members of the same geminivirus subgroup. The presence of an intact Rb binding motif is required for efficient WDV DNA replication in cultured wheat cells, strongly suggesting that one of the functions of WDV Rep may be the linking between viral and cellular DNA replication cycles. Our results point to the existence of a Rb-like protein(s) in plant cells playing regulatory roles during the cell cycle. Previous ArticleNext Article Volume 14Issue 161 August 1995In this issue RelatedDetailsLoading ..." @default.
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- W166366310 title "Identification and analysis of a retinoblastoma binding motif in the replication protein of a plant DNA virus: requirement for efficient viral DNA replication." @default.
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- W166366310 doi "https://doi.org/10.1002/j.1460-2075.1995.tb00079.x" @default.
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