DNA Base Composition of Rickettsiae

There is a small but distinct difference in DNA base composition between the typhus and spotted fever groups of rickettsiae. The molar percentages of guanine plus cytosine for Rickettsia prowazeki, R. typhi, and R. canada are approximately 30, for R. rickettsi, R. conori, and R. akari they are about...

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Veröffentlicht in:	Science (American Association for the Advancement of Science) 1973-04, Vol.180 (4084), p.415-417
Hauptverfasser:	Tyeryar, Franklin J., Weiss, Emilio, Millar, David B., Bozeman, F. Marilyn, Ormsbee, Richard A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Bacillus subtilis - analysis Base composition Centrifugation, Density Gradient Chick Embryo Cytosine Nucleotides - analysis DNA, Bacterial - analysis DNA, Bacterial - isolation & purification Fever Guanine Nucleotides - analysis L cells Mass spectra Nucleotides - analysis Pasteurella - analysis Rickettsia Rickettsia - analysis Rickettsia prowazekii - analysis Rickettsia rickettsii - analysis Rickettsia typhi - analysis Sharks Species Specificity Stripes Training Typhus Yolk sac
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Beschreibung
Zusammenfassung:	There is a small but distinct difference in DNA base composition between the typhus and spotted fever groups of rickettsiae. The molar percentages of guanine plus cytosine for Rickettsia prowazeki, R. typhi, and R. canada are approximately 30, for R. rickettsi, R. conori, and R. akari they are about 32.5. The percentage for trench fever rickettsia, Rochalimaea quintana, is 38.6.
ISSN:	0036-8075 1095-9203
DOI:	10.1126/science.180.4084.415