These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Effects of deletion at the TTTSTTT motif of Hibiscus latent Singapore virus coat protein on viral replication and long-distance movement.
    Author: Niu S, Guo S, Tewary SK, Wong SM.
    Journal: Virology; 2019 Jan 02; 526():13-21. PubMed ID: 30317102.
    Abstract:
    Hibiscus latent Singapore virus (HLSV) mutant HLSV-22A could not express coat protein (CP) nor infect plants systemically (Niu et al., 2015). In this study, a serine- and threonine-rich motif TTTSTTT at the C-terminus of HLSV CP was found to be involved in virus replication and systemic movement. Deletion the last amino acid residue in HLSV-22A led to a more rapid virus replication, but with delayed systemic movement. When the RNA structure in TTTSTTT motif was altered, while keeping its amino acids unchanged, mutants HLSV-87A-mmSL and HLSV-22A-mmSL showed no change in viral replication. These results indicated that the unique TTTSTTT motif is associated with virus replication and systemic movement. Deletion but not substitution of amino acid(s) at the C-terminus of TTTSTTT motif of HLSV CP with short internal poly(A) track enhanced virus replication, whereas the virus with a longer internal poly(A) tract of 87 A showed delayed systemic movement (147 words).
    [Abstract] [Full Text] [Related] [New Search]