Ralph C. Judd
University of Montana
38 Papers
401 Citations
Ralph C. Judd is an academic researcher from University of Montana. The author has contributed to research in topics: Neisseria gonorrhoeae & Gel electrophoresis. The author has an hindex of 19, co-authored 38 publications.
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Papers
Export and intercellular transfer of DNA via membrane blebs of Neisseria gonorrhoeae.
TL;DR: In vitro results suggest that bleb formation by N. gonorrhoeae may serve to transfer plasmids intercellularly in vivo, perhaps constituting a previously unexplored genetic exchange mechanism in these bacteria.
The MtrD protein of Neisseria gonorrhoeae is a member of the resistance/nodulation/division protein family constituting part of an efflux system
Kayla E. Hagman,Claressa E. Lucas,Jacqueline T. Balthazar,Lori A. S. Snyder,Matthew L. Nilles,Ralph C. Judd,William M. Shafer,William M. Shafer +7 more
TL;DR: The complete nucleotide sequence of the mtrD gene was determined, permitting the characterization of the MtrD protein, which displays significant amino acid sequence similarity to a family of cytoplasmic membrane proteins, termed resistance/nodulation/division (RND) proteins, which function as energy-dependent transporters of antibacterial agents and secrete bacterial products to the extracellular fluid.
Additive and synergistic bactericidal activity of antibodies directed against minor outer membrane proteins of Neisseria meningitidis.
Vincent Weynants,Christiane Feron,Karine Goraj,Martine P. Bos,Philippe Denoël,Vincent Verlant,Jan Tommassen,Ian R. Peak,Ralph C. Judd,Michael P. Jennings,Jan Poolman +10 more
TL;DR: It was demonstrated that overproduction of more than one minor OMP is required to elicit antibodies able to induce complement-mediated killing of strains expressing heterologous PorA, and it was concluded that a critical density of bactericidal antibodies needs to be reached at the surface of meningococci to inducing complement- mediated killing.
Characterization of reverse transcriptase from feline immunodeficiency virus.
TL;DR: Reverse transcriptase has been purified from feline immunodeficiency virus (FIV) by DEAE-cellulose and phosphoCellulose chromatography and is very similar to the HIV reverse transcriptase in template specificity and requirements for Mg2+.
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The Neisseria Lipooligosaccharide-Specific α-2,3-Sialyltransferase Is a Surface-Exposed Outer Membrane Protein
TL;DR: It is confirmed and extended by demonstrating that Lst is located in the outer membrane and is surface exposed in both N. gonorrhoeae and N. meningitidis, the first demonstration of the localization of a bacterial glycosyltransferase to theouter membrane of gram-negative bacteria.