نتایج جستجو برای: ribonucleic acid
تعداد نتایج: 748161 فیلتر نتایج به سال:
The insulin-like growth factor system (insulin-like growth factor 1, insulin-like growth factor 2, insulin-like growth factor 1 receptor, insulin-like growth factor 2 receptor and six insulin-like growth factor-binding proteins) and insulin are essential to muscle metabolism and most aspects of male and female reproduction. Insulin-like growth factor and insulin play important roles in the regu...
Previous experiments have indicated that infected cells of strain I of S. muscae may release phage under certain conditions without lysing (1). Lwoff and Gutman have recently suggested that the phage is actually liberated while the sample is being diluted for the phage assay, with the cells undergoing lysis at this time (2). I t therefore seemed desirable to repeat these experiments in such a w...
Accumulation of the capacity of initiation of deoxyribonucleic acid replication in Escherichia coli.
Several temperature-sensitive initiation mutants of Escherichia coli were examined for the ability to initiate more than one round of replication after being held at nonpermissive temperature for approximately 1.5 generation equivalents. The capacity for initiation was measured by residual synthesis experiments and rate experiments under conditions where protein synthesis and ribonucleic acid s...
It has been observed that nucleic acids, nucleotides, and nucleosides inhibit the lipolytic action of epinephrine on adipose tissue, whereas purine and pyrimidine bases increase it (1). Further studies, described in the present report, have shown this interaction to be quite specific for lipolysis (uptake and esterification of fatty acids being unaffected), but not limited to epinephrine (other...
Ribavirin at a concentration of 30 mug/ml added immediately after infection completely inhibited influenza A/Port Chalmers/1/73 (H(3)N(2)) virus hemagglutinin production in infected MDCK cells. Under these conditions, host cell protein synthesis was inhibited by only 10 to 20%. Polyacrylamide gel electrophoresis of [(35)S]methionine-labeled material from virus-infected cultures confirmed that r...
The primary biological function of the endogenous cellular prion protein has remained unclear. We investigated its biological function in the generation of cellular immune responses using cellular prion protein gene-specific small interfering ribonucleic acid in vivo and in vitro. Our results were confirmed by blocking cellular prion protein with monovalent antibodies and by using cellular prio...
Values for the deoxyribonucleic acid and ribonucleic acid contents in a considerable number of human post-mortem tissues are given and briefly discussed.
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