The Experts below are selected from a list of 144 Experts worldwide ranked by ideXlab platform

Hans Gerd Schiefer - One of the best experts on this subject based on the ideXlab platform.

Ulrich Schummer - One of the best experts on this subject based on the ideXlab platform.

Ictv Report Consortium - One of the best experts on this subject based on the ideXlab platform.

  • ICTV Virus Taxonomy Profile: Plasmaviridae
    Journal of General Virology, 2018
    Co-Authors: Mart Krupovic, Ictv Report Consortium
    Abstract:

    The family Plasmaviridae includes bacterial viruses with slightly pleomorphic, enveloped virions with a diameter of 50-125 nm. Virions contain infectious, circular, supercoiled dsDNA molecule(s) of approximately 12 kbp. Plasmaviruses infect Acholeplasma species, wall-less bacteria of the class Mollicutes, and are released by budding through the cell membrane without causing host cell lysis. Although the temperate bacteriophage Acholeplasma virus L2 of Acholeplasma laidlawii is currently the only classified plasmavirus, related prophages reside in the genomes of different Acholeplasma species, where they are integrated into tRNA genes. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the taxonomy of the Plasmaviridae, which is available at www.ictv.global/report/plasmaviridae.

Milton H. Saier - One of the best experts on this subject based on the ideXlab platform.

  • presence of protein constituents of the gram positive bacterial phosphotransferase regulatory system in Acholeplasma laidlawii
    Journal of Bacteriology, 1993
    Co-Authors: Christian Hoischen, A Dijkstra, Jonathan Reizer, Shraga Rottem, Milton H. Saier
    Abstract:

    Acholeplasma species have been reported to lack a functional phosphoenolpyruvate:sugar phosphotransferase system (PTS). We show here that Acholeplasma laidlawii possesses activities of enzyme I, HPr, HPr(ser) kinase, and HPr(ser-P) phosphatase but lacks detectable activities of enzymes II of the PTS. HPr from this organism was purified, and the regulatory properties of the kinase and phosphatase were characterized and shown to differ from those of previously studied bacteria. The results suggest the presence of an incomplete PTS in A. laidlawii which has the potential to function in a unique regulatory capacity. Images

  • Presence of protein constituents of the gram-positive bacterial phosphotransferase regulatory system in Acholeplasma laidlawii.
    Journal of bacteriology, 1993
    Co-Authors: Christian Hoischen, A Dijkstra, Jonathan Reizer, Shraga Rottem, Milton H. Saier
    Abstract:

    Acholeplasma species have been reported to lack a functional phosphoenolpyruvate:sugar phosphotransferase system (PTS). We show here that Acholeplasma laidlawii possesses activities of enzyme I, HPr, HPr(ser) kinase, and HPr(ser-P) phosphatase but lacks detectable activities of enzymes II of the PTS. HPr from this organism was purified, and the regulatory properties of the kinase and phosphatase were characterized and shown to differ from those of previously studied bacteria. The results suggest the presence of an incomplete PTS in A. laidlawii which has the potential to function in a unique regulatory capacity.

Mart Krupovic - One of the best experts on this subject based on the ideXlab platform.

  • ICTV Virus Taxonomy Profile: Plasmaviridae
    Journal of General Virology, 2018
    Co-Authors: Mart Krupovic, Ictv Report Consortium
    Abstract:

    The family Plasmaviridae includes bacterial viruses with slightly pleomorphic, enveloped virions with a diameter of 50-125 nm. Virions contain infectious, circular, supercoiled dsDNA molecule(s) of approximately 12 kbp. Plasmaviruses infect Acholeplasma species, wall-less bacteria of the class Mollicutes, and are released by budding through the cell membrane without causing host cell lysis. Although the temperate bacteriophage Acholeplasma virus L2 of Acholeplasma laidlawii is currently the only classified plasmavirus, related prophages reside in the genomes of different Acholeplasma species, where they are integrated into tRNA genes. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the taxonomy of the Plasmaviridae, which is available at www.ictv.global/report/plasmaviridae.