Infection of MPC-11 mouse plasmacytoma cells by vesicular stomatitis virus results in 30 to 35% reduction in [35S]methionine incorporation into total proteins within 30 min postinfection. By 6 h postinfection, total protein synthesis is reduced by 80 to 90%. However, even by 30 min postinfection, a differential suppression of the synthesis of individual host protein is observed. The synthesis o...

Phosphatidylinositol 4-kinasebeta (PI4Kbeta) plays an essential role in maintaining the structural integrity of the Golgi complex. In a search for PI4Kbeta-interacting proteins, we found that PI4Kbeta specifically interacts with the GTP-bound form of the small GTPase rab11. The PI4Kbeta-rab11 interaction is of functional significance because inhibition of rab11 binding to PI4Kbeta abolished the...

Mutagenesis by a variety of chemical mutagens conferred only 1.1- to 2.8-fold increases in mutation frequencies at defined single base sites in vesicular stomatitis virus and poliovirus.

The virions of Newcastle disease virus (NDV) contained an enzyme that catalyzed the incorporation of ribonucleotides into ribonucleic acid (RNA). Optimal conditions for this polymerase activity were identical to the conditions for the vesicular stomatitis virus (VSV) polymerase, and both enzymes were active for longer times at 32 C than at 37 C. However, the specific activity of the NDV polymer...

The phosphoprotein (P) of vesicular stomatitis virus (VSV) plays essential roles in viral RNA synthesis. It associates with nascent nucleoprotein (N) to form N(0)-P (free of RNAs), thereby preventing the N from binding to cellular RNAs and maintaining the N in a viral genomic RNA encapsidation-competent form for transcription and replication. The contributions of phosphorylation of P to transcr...

BACKGROUND Mucosal affectation may be a direct cytotoxic or cytostatic effect of methotrexate. OBJECTIVE To highlight the diagnostic procedure and treatment intervention erythema multiforme complicating methotrexate-induced allergic stomatitis. CASE REPORT The patient was a 60-year-old man suffering from stomatitis that rapidly developed into erythema multiforme. The patient had been prescr...

BACKGROUND The prevalence of denture stomatitis has been shown to vary from 15 to 65% in complete denture wearers. Satureja hortensis L. has been considered to have antinociceptive, anti-inflammatory, antifungal and antimicrobial activities in vitro and exhibits strong inhibitory effect on the growth of periodontal bacteria. The aim of this study was to evaluate the efficacy of a 1% gel formula...

The semi-micro method for interferon assay was based on quantitation of inhibition of cytopathic effects in 6-mm wells. Cultures were exposed to interferon dilutions, challenged with vesicular stomatitis virus, and stained with methylrosanaline chloride. The bound dye was then eluted and measured colorimetrically. The method was more sensitive than the plaque-inhibition method and was extremely...

The tendency for genetic architectures to exhibit epistasis among mutations plays a central role in the modern synthesis of evolutionary biology and in theoretical descriptions of many evolutionary processes. Nevertheless, few studies unquestionably show whether, and how, mutations typically interact. Beneficial mutations are especially difficult to identify because of their scarcity. Consequen...