Biosynthesis of deoxyribose in wheat embryos
نویسندگان
چکیده
منابع مشابه
Biosynthesis of ribose and deoxyribose in Escherichia coli.
The studies reported here are concerned with the biosynthesis of ribose and deoxyribose in Escherichia coli R-2. When these studies were undertaken the evidence available allowed no general conclusions to be drawn as to a common biosynthetic pathway for the two pentoses. Since that time numerous studies have contributed to a better understanding of the problem. Tracer studies on the origin of r...
متن کاملPurine metabolism in germinating wheat embryos.
1. Both the acid-soluble fraction and the nucleic acid fraction of wheat embryos were extensively labelled after incubation for 6hr. in the presence of [8-(14)C]adenine. Subsequent incubation in the absence of labelled adenine resulted in no loss of radioactivity to the medium during a 48hr. period. Radioautography indicated that during this period there was a continuous increase in the radioac...
متن کاملBiosynthesis of pentose in Escherichia coli. Synthesis of deoxyribose in cells infected with bacteriophage.
The biosynthesis of ribose and deoxyribose in Escherichia coli involves both the oxidative pathway through 6-phosphogluconate and the nonoxidative pathway through the transketolase and transaldolase sequence (Lanning and Cohen, 1954; Bernstein, 1956; Bagatell, Wright, and Sable, 1959). The proportions of the oxidative and nonoxidative pathways depend on the nature of the principal carbon source...
متن کاملIsotopic tracer studies on the biosynthesis of deoxyribose in the rat.
The biosynthesis of deoxyribose, in vivo, was studied with NaHIIC03 as a tracer, in normal adult, starved adult, normal newborn, "thiamine-deficient" adult and " tumor bearing" rats and in Yoshida ascites-tumor cells. Comparisons of the tracer patterns in ribose and deoxyribose isolated from the nucleic acids of skin and liver suggest that in young tissues the formation of deoxyribose may occur...
متن کاملDeoxyribonucleic Acid polymerase from wheat embryos.
A soluble DNA-dependent DNA polymerase was extracted from wheat embryos. In vitro, the incorporation of radioactive thymidine triphosphate into acid-insoluble material is dependent upon the presence of the enzyme, all four deoxyribonucleotide triphosphates, Mg(2+), and a DNA template. Incorporation occurs on native, alkali-denatured, and strictly double-stranded DNA. The in vitro synthesized pr...
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ژورنال
عنوان ژورنال: Biochemistry
سال: 1969
ISSN: 0006-2960,1520-4995
DOI: 10.1021/bi00838a027