Results 141 to 150 of about 4,570 (177)

Reversal of inhibition of membrane-bound RNA synthesis in Escherichia coli infected with R23

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1973
Abstract 1. Infection by RNA bacteriophage R23 causes a release of ribosomes from a membrane-DNA-RNA polymerase complex isolated from Escherichia coli. This release may be responsible for the reduction in RNA synthetic capacity seen after phage infection. 2. The addition of ribosomes to such a membrane preparation restores the RNA synthetic capacity
D, Hunt, M, Watanabe
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Expression of the lac operon in Escherichia coli infected with RNA phage R23

Canadian Journal of Microbiology, 1970
Infection of Escherichia coli by R23 results in a coordinate repression of permease and β-galactosidase genes of the lactose operon but this effect is not mediated at the level of the regulatory or promoter genes. Immediately preceding the inhibitory phase there is a transient phase of increased inducer uptake and enzyme synthesis which may be ...
H, Watanabe, M, Watanabe
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Comparative biology of five RNA phages, R23, f2, Qβ, R34, and R40

Canadian Journal of Microbiology, 1970
The RNA bacteriophage R23 inhibits the synthesis of bacterial RNA and protein to a greater extent than phages f2, Qβ, R34, or R40. Various aspects of the process of infection of Escherichia coli by these phages have been examined to assess their possible role in determining the extent of viral RNA synthesis and inhibition of the host. There was little
H, Watanabe, M, Watanabe
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MPEC 2023-R23 : DAILY ORBIT UPDATE (2023 September 6)

2023
The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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Effect of infection with RNA phage R23 on membrane permeability and K+ fluxes in Escherichia coli

Biochimica et Biophysica Acta (BBA) - Biomembranes, 1970
Abstract 1. 1. Infection of Escherichia coli by the RNA bacteriophage R23 produced a rapid, transient increase in K + efflux from cells preloaded with 42 K + . R23 also stimulated the influx of 42 K + for the first 5–10 min. The enhanced efflux was terminated by a “sealing reaction” 10–15 min after infection. 2. 2. The phage effect on K
H, Watanabe, M, Watanabe
openaire   +2 more sources

Derived thermodynamic design data for heat pump systems operating on R23

Heat Recovery Systems and CHP, 1991
Abstract Theoretical Rankine coefficients of performance and the compression ratios have been presented for heat pump systems operating on R23. These values are listed in tabular form for temperature lifts of 5–75°C and condensing temperatures of 5–24°C in one degree increments.
M.A.R. Eisa, K. Abdel Rahman, F.A. Holland   +2 more
openaire   +1 more source

The ribosomal-RNA synthesis factor ψr in Escherichia coli infected with RNA bacteriophage R23

Biochemical and Biophysical Research Communications, 1971
Infection of Escherichia coli with the RNA bacteriophage R23 inhibits RNA synthesis by the cell membrane-DNA-RNA polymerase complex of the host cell, and this inhibition cannot be reversed by the addition of ψr to the reaction mixture. Infection of E. coli with R23 does not cause a decrease in the level of the factor ψr present in the cell supernatant.
D, Hunt, M, Watanabe
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Experimental investigation of cycle characteristics of a R23 and R600a based Joule-Thomson refrigerator

Heat and Mass Transfer, 2018
This paper proposes a novel refrigerant pair, i.e., R23(trifluoromethane) and R600a(isobutane), for Joule-Thompson (JT) refrigerating systems for 200 K applications, and investigates its performance in a modified smaller domestic cooler. The influence of the refrigerant ratios and the condensing temperature on the JT performance is investigated, and ...
Xianghua Lu, Shengjun Rui, Tao He
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MPEC 2024-R23 : 2024 RE

The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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Replication of RNA bacteriophage R23

Journal of Molecular Biology, 1968
Mamoru Watanabe, Hiroko Watanabe, J.Thomas August   +2 more
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