Now showing items 51-60 of 293
Presence of multiple protein kinase activities in rat liver nuclei
(Elsevier, 1972-02-25)
Protein kinase activity was found in the acidic nuclear protein fraction extracted from rat liver nuclei. Four distinct kinase activities were separated by phosphocellulose and DEAE-Sephadex chromatography. Additional ...
Aliphatic hydroxylation by highly purified liver microsomal cytochrome P-450. Evidence for a carbon radical intermediate
(Elsevier, 1978-03-15)
The oxidation of norbornane by a reconstituted liver cytochrome P-450 system affords - and -2-norborneol in a ratio of 3.4:1. The ratio of these products was found to be 0.76:1 when -2,3,5,6-tetradueteronorbornane was ...
Effects of rifampicin, streptolydigin and actinomycin D on the replication of Col E1 plasmid DNA in Escherichia coli
(Elsevier, 1973-04-15)
We recently reported (Clewell et al., 1972) on an inhibitory effect of rifampicin on Col E1 plasmid replication. The present study represents a further characterization of this phenomenon as well as a study of the effects ...
Observations on chytridiaceous parasites of phanerogams
(Springer-Verlag, 1970-06)
A hitherto unnoted species of Physoderma on the basal leaves of Juncus pelocarpus Mey. is described. The fungus produces light brown irregularlyplaced spots on the outermost leaves. The endobiotic system is composed in ...
Protein synthesizing systems from spores and vegetative cells of Bacillus cereus
(Springer-Verlag, 1979-06)
A system of polyphenylalanine synthesis was optimized for a comparison of the polymerizing activities of ribosomes from spores and vegetative cells of Bacillus cereus T. Ribosomes of both types react similarly, showing a ...
Aerobic and anaerobic energy expenditure during rest and activity in montane Bufo b. boreas and Rana pipiens
(Springer-Verlag, 1979-01)
The relations of standard and active aerobic and anaerobic metabolism and heart rate to body temperature ( T b ) were measured in montane groups of Bufo b. boreas and Rana pipiens maintained under field conditions. These ...
The self-catalyzed destruction of lipoxygenase
(Elsevier, 1970-11-25)
Lipoxygenase (E.C. 1.99.2.1) from soybean catalyzes its own destruction in the presence of both substrates, oxygen and fatty acid. The apparent first order rate constant for this inactivation was 0.050 min-1 in the presence ...
Stochastic models for an open biochemical system
(Elsevier, 1978-12)
This paper uses the theory of Markov processes to derive stochastic models for a single open biochemical system at steady state under 3 sets of assumptions. The system is a one substrate, one product reaction. Each set of ...
Observations on the regulation of uricase activity during development of Drosophila melanogaster
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1973-01)
To elucidate the mechanisms involved in the regulation of uricase activity in Drosophila melanogaster , a comparative analysis of the patterns of uricase activity during development was undertaken for the wild type, Ore-R ...