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Biomedical subjects

S Dekio

Publications and source records attributed to S Dekio.

At least 91 records · Page 5Linked to original sources
PubMed1984

Secondary structure and phylogeny of Staphylococcus and Micrococcus 5S rRNAs.

Nucleotide sequences of 5S rRNAs from four bacteria, Staphylococcus aureus Smith (diffuse), Staphylococcus epidermidis ATCC 14990, Micrococcus luteus ATCC 9341 and Micrococcus luteus ATCC 4698, were determined. The secondary structural models of S. aureus and S. epidermidis sequences showed characteristics of the gram-positive bacterial 5S rRNA (116-N type [H. Hori and S. Osawa, Proc. Natl. Acad. Sci. U.S.A. 76:381-385, 1979]). Those of M. luteus ATCC 9341 and M. luteus ATCC 4698 together with that of Streptomyces griseus (A. Simoncsits, Nucleic Acids Res. 8:4111-4124, 1980) showed intermediary characteristics between the gram-positive and gram-negative (120-N type [H. Hori and S. Osawa, 1979]) 5S rRNAs. This and previous studies revealed that there exist at least three major groups of eubacteria having distinct 5S rRNA and belonging to different stems in the 5S rRNA phylogenic tree.

Base Sequence↗
PubMed1983

Mechanism of coagulase production in Staphylococcus aureus Smith.

Coagulase production and release were studied in Staphylococcus aureus Smith using TC Medium 199 containing bovine serum albumin. The bacteria released coagulase continuously in the medium containing serum albumin, but only at the early-mid log phase of growth in the medium not containing serum albumin. In each of the media, coagulase was considered to be a newly synthesized one encoded by a newly synthesized messenger RNA. By the experiments using bacteria pre-treated with acridine orange, it was suggested that the coagulase gene was located on the chromosome. The plasmid regulating coagulase production was considered to be present.

Acridine Orange↗
PubMed1976

Effects of cycloheximide and actinomycin D on production of acidic nuclear proteins in human lymphocytes activated by phytohemagglutinin.

Previous studies have implicated a role for acidic nuclear proteins in the PHA stimulated activation of human lymphocytes. This study examines the mechanism of synthesis of these proteins. Cycloheximide inhibited their production, while Actinomycin D did not. It is suggested that synthesis proceeds by translation of dormant messenger RNA rather than of newly synthesized messenger RNA.

Cycloheximide↗
PubMed1976

Release of chymotrypsin-like esterase from isolated rat peritoneal mast cells by arginine-rich calf thymus histone.

Release of chymotrypsin-like esterase from isolated rat peritoneal mast cells by arginine-rich and lysine-rich calf thymus histones was investigated. The arginine-rich histone released the esterase, but the lysine-rich histone did not release the esterase from the mast cells. The isolated mast cells spontaneously released the esterase gradually. The chymotrypsin-like esterase released from the mast cells is considered to digest the destructed material in tissues in a state of chronic destruction, such as chronically inflamed tissues and malignant tumours.

Animals↗