scholarly journals Studies on protein and nucleic acid metabolism in virus-infected mammalian cells. 5. The kinetics of synthesis of virus protein and of virus ribonucleic acid in Krebs II mouse-ascites-tumour cells infected with encephalomyocarditis virus

1962 ◽  
Vol 83 (3) ◽  
pp. 574-582 ◽  
Author(s):  
EM MARTIN ◽  
TS WORK
Keyword(s):  
Nucleic Acid ◽  
Ribonucleic Acid ◽  
Mammalian Cells ◽  
Acid Metabolism ◽  
Encephalomyocarditis Virus ◽  
Virus Protein ◽  
Nucleic Acid Metabolism ◽  
Mouse Ascites ◽  
Kinetics Of ◽  
Ascites Tumour Cells

EFFECT OF OESTRADIOL-17β ON CLEAVAGE, NUCLEIC ACID METABOLISM AND PROTEIN SYNTHESIS IN SEA URCHIN, STRONGYLOCENTROTUS PURPURATUS, EMBRYOS

1962 ◽  
Vol 25 (2) ◽  
pp. 183-NP ◽  
Author(s):  
W. B. JOLLEY ◽  
W. E. MARTIN ◽  
J. W. BAMBERGER ◽  
L. W. STEARNS
Keyword(s):  
Protein Synthesis ◽  
Nucleic Acid ◽  
Sea Urchin ◽  
Ribonucleic Acid ◽  
Deoxyribonucleic Acid ◽  
Acid Metabolism ◽  
Strongylocentrotus Purpuratus ◽  
Nucleic Acid Metabolism ◽  
Dna And Rna ◽  
Moderate Effect

SUMMARY Oestradiol-17β at a concentration of 3 × 10−3 m inhibits cleavage in sea urchin (Strongylocentrotus purpuratus) embryos. This inhibition is accompanied by a reduction in deoxyribonucleic acid (DNA) synthesis and little change in ribonucleic acid (RNA). The effects of oestradiol-17β upon the incorporation of glycine-1-14C and glycine-2-14C into the purines of DNA and RNA and the incorporation of glycine-2-14C into serine were studied. The incorporation of glycine-1-14C and glycine-2-14C into RNA was reduced, but the incorporation of glycine-2-14C into DNA was increased considerably over that of the controls. The incorporation of glycine-2-14C into serine was also accelerated by oestradiol. A possible explanation of the action of oestradiol-17β is offered. The moderate effect upon RNA is not surprising because there is little or no synthesis of this compound from the time of fertilization to blastulation under normal conditions.

Cytochemical Studies on the Embryonic Development of Drosophila melanogaster

1949 ◽  
Vol s3-90 (12) ◽  
pp. 401-409
Author(s):  
T. YAO
Keyword(s):  
Drosophila Melanogaster ◽  
Nucleic Acid ◽  
Chick Embryo ◽  
Embryonic Development ◽  
Ribonucleic Acid ◽  
Acid Metabolism ◽  
Nucleic Acid Metabolism ◽  
Germ Band ◽  
Histochemical Evidence

In the egg of Drosophila the distribution of sulphydryl and ribonucleic acid compounds has no apparent connexion with the dorso-ventral organization, contrary to the situation found in the amphibian egg. Histochemical evidence suggests that the nucleic acid metabolism of the Drosophila egg may be similar to that of the chick embryo. During embryogenesis the contraction of the germ band can be considered as an important morphogenetic stage which marks the beginning of the histo-differentiation of all larval structures.

EFFECT OF L-CYSTEINE ON α-AMYLASE PRODUCTION AND NUCLEIC ACID METABOLISM IN BACILLUS SUBTILIS

1963 ◽  
Vol 9 (3) ◽  
pp. 337-341 ◽  
Author(s):  
MICHIO OISHI ◽  
SHIGERU KITAYAMA ◽  
HAJIME TAKAHASHI ◽  
BUNJI MARUO
Keyword(s):  
Bacillus Subtilis ◽  
Nucleic Acid ◽  
Acid Metabolism ◽  
Nucleic Acid Metabolism ◽  
Amylase Production
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