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Autor:
Eugene D. Weinberg, Dean Fraser
Publikováno v:
The American Biology Teacher. 38:466-480
THE HUMAN ENTERPRISE of science consists of several components, of which the initial one is usually the observation of natural phenomena. Persons who make such observations often feel the need to classify and interpret their observations. But though
Autor:
Dean Fraser, Karen Baxter-Gabbard
Publikováno v:
Biopolymers. 13:207-216
The viscosity of the DNA of T2 bacteriophage has been studied with the aim of understanding the folding of the DNA in the phage head. Thus the results of previous workers have been extended into a range of concentrations and mixtures of cations and p
Autor:
Henry R. Mahler, Dean Fraser
Publikováno v:
Virology. 8:401-424
Properties of the Escherichia coli protoplast-infective agent (π) derived from T2 are compared with those of T2, as well as with the published properties of pneumococcus transforming principle (TP). π is somewhat more resistant to heat inactivation
Autor:
Richard L. Weiss, Dean Fraser
Publikováno v:
Journal of Bacteriology. 113:963-968
This report describes the ultrastructural features of Pseudomonas aeruginosa after freeze-etching of intact cells and enzymatically prepared spheroplasts. Freeze-etching of intact cells revealed two convex layers of the cell wall and particles within
Publikováno v:
Archives of Biochemistry and Biophysics. 86:85-88
Deoxycytidylic deaminase (dCMP deaminase) was found in Escherichia coli after infection with T2 bacteriophage. This enzyme could not be detected in uninfected cells but appears 3–5 min. after infection. Enzyme synthesis could be stopped at any stag
Autor:
Dean Fraser
Publikováno v:
Journal of Biological Chemistry. 227:711-715
Autor:
Dean Fraser, Heman Witmer
Publikováno v:
Journal of Virology. 7:314-318
The photodynamic inactivation of coliphage T3 was studied over a wide range of concentrations of the dye proflavine. With 2 × 10 7 phage/ml, two modes of inactivation were observed. Between 0.25 and 12 to 13 μg/ml, inactivation was biphasic. There
Publikováno v:
Biochimica et Biophysica Acta. 42:255-271
A variety of inhibitors has been shown to have pronounced effects on the replication of T2 bacteriophage in protoplasts of E. coli B. Ribonuclease applied in 5 or 10 min pulses exerts a maximum effect (40% reduction of burst size) when applied betwee