Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects最新文献

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Effects of thioacetamide on labeling of ribonucleic acid of isolated nucleoli in vitro 硫代乙酰胺对离体核仁核糖核酸标记的影响
Jose G. Villalobos Jr. , William J. Steele, Harris Busch
{"title":"Effects of thioacetamide on labeling of ribonucleic acid of isolated nucleoli in vitro","authors":"Jose G. Villalobos Jr. ,&nbsp;William J. Steele,&nbsp;Harris Busch","doi":"10.1016/0926-6550(64)90246-4","DOIUrl":"10.1016/0926-6550(64)90246-4","url":null,"abstract":"<div><p>The conditions that were optimal for incorporation of [<sup>14</sup>C]uridine triphosphate into RNA of nucleoli of normal liver cells were found to be optimal for incorporation of [<sup>14</sup>C]uridine triphosphate into nucleoli of thioacetamide-treated rat livers. Maximum incorporation of isotope was found at 15–30 min after the incubation was begun. Thioacetamide produced a marked increase in the rate of uptake of total isotope into RNA and in the specific activity of the RNA despite the increased amount of RNA in the nucleoli obtained from thioacetamide-treated animals. These data suggest that thioacetamide may derepress the genomic segments involved in biosynthesis of nucleolar RNA.</p></div>","PeriodicalId":100173,"journal":{"name":"Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects","volume":"91 2","pages":"Pages 233-238"},"PeriodicalIF":0.0,"publicationDate":"1964-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0926-6550(64)90246-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"23789596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 26
Effect of actinomycin and insulin on the metabolism of isolated rat diaphragm 放线菌素和胰岛素对离体大鼠膈肌代谢的影响
Ira G. Wool, Arthur N. Moyer
{"title":"Effect of actinomycin and insulin on the metabolism of isolated rat diaphragm","authors":"Ira G. Wool,&nbsp;Arthur N. Moyer","doi":"10.1016/0926-6550(64)90248-8","DOIUrl":"10.1016/0926-6550(64)90248-8","url":null,"abstract":"<div><p>The postulation that RNA synthesis is the molecular site of action of insulin was tested by examining the effect of actinomycin on the response of isolated rat diaphragm muscle to the hormone. Actinomycin markedly suppressed, but did not completely inhibit, nucleic acid synthesis in muscle; the effect of the antibiotic on protein synthesis was not nearly as great. Actinomycin treatment of diaphragm muscle did not prevent the insulin stimulation of protein synthesis, of glucose uptake, or of aminoisobutyric acid accumulation; nor, for that matter, did it prevent the influence of the hormone to increase incorporation of [<sup>14</sup>C<sub>8</sub>]adenine into nucleic acids. The results do not lend comfort to the theory that an effect of insulin on the synthesis of messenger RNA is fundamental to its action, although it does not rule out that possibility with certainty.</p></div>","PeriodicalId":100173,"journal":{"name":"Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects","volume":"91 2","pages":"Pages 248-256"},"PeriodicalIF":0.0,"publicationDate":"1964-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0926-6550(64)90248-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"23789597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 42
Phosphodiesterase specific for denaturated DNA 磷酸二酯酶专为变性DNA
I.I. Nikolskaya, N.M. Shalina , T.I. Tikhonenko
{"title":"Phosphodiesterase specific for denaturated DNA","authors":"I.I. Nikolskaya,&nbsp;N.M. Shalina ,&nbsp;T.I. Tikhonenko","doi":"10.1016/0926-6550(64)90268-3","DOIUrl":"10.1016/0926-6550(64)90268-3","url":null,"abstract":"","PeriodicalId":100173,"journal":{"name":"Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects","volume":"91 2","pages":"Pages 354-357"},"PeriodicalIF":0.0,"publicationDate":"1964-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0926-6550(64)90268-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"23789616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
On the mode of action by which the carcinogen dimethylnitrosamine inhibits protein synthesis in the liver 致癌物质二甲基亚硝胺抑制肝脏蛋白质合成的作用方式
I.J. Mizrahi, P. Emmelot
{"title":"On the mode of action by which the carcinogen dimethylnitrosamine inhibits protein synthesis in the liver","authors":"I.J. Mizrahi,&nbsp;P. Emmelot","doi":"10.1016/0926-6550(64)90271-3","DOIUrl":"10.1016/0926-6550(64)90271-3","url":null,"abstract":"","PeriodicalId":100173,"journal":{"name":"Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects","volume":"91 2","pages":"Pages 362-364"},"PeriodicalIF":0.0,"publicationDate":"1964-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0926-6550(64)90271-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"23789619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 33
Metabolic studies on the sugars of nucleic acids III. 14C-labelling of ribose and deoxyribose in rat tissues in vivo 核酸糖的代谢研究III。大鼠体内组织中核糖和脱氧核糖的14c标记
S. Itzhaki, Elizabeth D. Whittle
{"title":"Metabolic studies on the sugars of nucleic acids III. 14C-labelling of ribose and deoxyribose in rat tissues in vivo","authors":"S. Itzhaki,&nbsp;Elizabeth D. Whittle","doi":"10.1016/0926-6550(64)90241-5","DOIUrl":"10.1016/0926-6550(64)90241-5","url":null,"abstract":"<div><p></p><ul><li><span>1.</span><span><p>1. [<sup>14</sup>C<sub>6</sub>]Glucose was injected intravenously into rats and the incorporation of <sup>14</sup>C into the ribose and deoxyribose of nucleic acids was investigated.</p></span></li><li><span>2.</span><span><p>2. In the RNA of all tissues studied, namely, thymus, spleen, liver and intestinal mucosa, the incorporation into the purine-bound ribose was higher than that into the pyrimidine-ribose. Further analysis showed that the specific activity of the ribose attached to cytosine was the lowest of the values for the four individual nucleotides; this was especially marked in the thymus.</p></span></li><li><span>3.</span><span><p>3. Similarly in the DNA, the specific activities of the deoxyribose moieties bound to the two purine bases were greater than the corresponding values of the pyrimidine-deoxyribose.</p></span></li><li><span>4.</span><span><p>4. These findings are in agreement with the results obtained previously from similar investigations <em>in vitro</em>. They are discussed here with reference to the formation of deoxyribotides from their respective ribose analogues.</p></span></li></ul></div>","PeriodicalId":100173,"journal":{"name":"Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects","volume":"91 2","pages":"Pages 190-198"},"PeriodicalIF":0.0,"publicationDate":"1964-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0926-6550(64)90241-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"23791733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Studies on the nucleotide arrangement in deoxyribonucleic acids VIII. A comparison of procedures for the determination of the frequency of pyrimidine nucleotide runs 脱氧核糖核酸中核苷酸排列的研究。嘧啶核苷酸运行频率测定方法的比较
Herman S. Shapiro, Erwin Chargaff
{"title":"Studies on the nucleotide arrangement in deoxyribonucleic acids VIII. A comparison of procedures for the determination of the frequency of pyrimidine nucleotide runs","authors":"Herman S. Shapiro,&nbsp;Erwin Chargaff","doi":"10.1016/0926-6550(64)90250-6","DOIUrl":"10.1016/0926-6550(64)90250-6","url":null,"abstract":"<div><p>Two DNA preparations of mammalian origin, <em>viz</em>., the DNA from calf thymus and the DNA from human spleen, were employed in a comparative study of different methods suitable for the investigation of the arrangement of pyrimidine nucleotides in the polymer chain. The conditions under comparison were (a) the degradation of DNA with dilute sulfuric acid; (b) the degradation of DNA with formic acid-diphenylamine; (c) the degradation of apurinic acid with dilute alkali. The released pyrimidine nucleotide runs of length 1 to 6 were determined directly by two-dimensional paper chromatography.</p><p>The range and validity of the several procedures described here and in the literature are considered in detail and the bearing of the findings on the general problem of the nucleotide sequence in DNA is discussed.</p></div>","PeriodicalId":100173,"journal":{"name":"Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects","volume":"91 2","pages":"Pages 262-270"},"PeriodicalIF":0.0,"publicationDate":"1964-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0926-6550(64)90250-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"23789599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 54
Biosynthesis of 3-deoxyribosylxanthine using thymidine phosphorylase 胸苷磷酸化酶生物合成3-脱氧核糖基黄嘌呤
M. Zimmerman , D. Hatfield
{"title":"Biosynthesis of 3-deoxyribosylxanthine using thymidine phosphorylase","authors":"M. Zimmerman ,&nbsp;D. Hatfield","doi":"10.1016/0926-6550(64)90257-9","DOIUrl":"10.1016/0926-6550(64)90257-9","url":null,"abstract":"","PeriodicalId":100173,"journal":{"name":"Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects","volume":"91 2","pages":"Pages 326-328"},"PeriodicalIF":0.0,"publicationDate":"1964-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0926-6550(64)90257-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"23789606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Retention of transforming activity on filtration of DNA solutions DNA溶液过滤时转化活性的保留
Alvin I. Krasna
{"title":"Retention of transforming activity on filtration of DNA solutions","authors":"Alvin I. Krasna","doi":"10.1016/0926-6550(64)90265-8","DOIUrl":"10.1016/0926-6550(64)90265-8","url":null,"abstract":"","PeriodicalId":100173,"journal":{"name":"Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects","volume":"91 2","pages":"Pages 347-349"},"PeriodicalIF":0.0,"publicationDate":"1964-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0926-6550(64)90265-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"23789613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Cortisol-induced increase of tyrosine-α-ketoglutarate transaminase in the isolated perfused rat liver and its relation to ribonucleic acid synthesis 皮质醇诱导离体灌注大鼠肝脏酪氨酸-α-酮戊二酸转氨酶升高及其与核糖核酸合成的关系
Ottavio Barnabei , Fabio Sereni
{"title":"Cortisol-induced increase of tyrosine-α-ketoglutarate transaminase in the isolated perfused rat liver and its relation to ribonucleic acid synthesis","authors":"Ottavio Barnabei ,&nbsp;Fabio Sereni","doi":"10.1016/0926-6550(64)90247-6","DOIUrl":"10.1016/0926-6550(64)90247-6","url":null,"abstract":"<div><p>It was shown that cortisol increases the level of tyrosine-α-ketoglutarate transaminase (<span>l</span>-tyrosine: 2-oxoglutarate aminotransferase, EC 2.6.1.5) of the isolated rat liver, when perfused with diluted rat blood containing an amino acid mixture; a more striking increase was obtained in the presence of a supplementary amount of tyrosine. This enhancement of activity was blocked by inhibitors both of protein synthesis (chloramphenicol, puromycin, ethionine) and of ribonucleic acid synthesis (actinomycin D and mitomycin C).</p><p>Adding [6-<sup>14</sup>C]orotate to the perfusing blood, caused a rapid incorporation of radioactivity into nuclear ribonucleic acid to take place; cytoplasmic ribonucleic acid was poorly labelled after 30 min, but its radioactivity rose thereafter. Cortisol stimulated the labelling of both the nuclear and the cytoplasmic ribonucleic acid; moreover it induced the increase of tyrosine transaminase after a lag of about 30 min. In both cases, the effect of the hormone was prevented by actinomycin D, or by mitomycin C.</p><p>It was finally found that livers perfused with cortisol have a higher nuclear ribonucleic acid polymerase (nucleosidetriphosphate: RNA nucleotidyltransferase, EC 2.7.7.6) activity than control ones.</p><p>The facts that the synthesis of nuclear ribonucleic acids precedes the increase of tyrosine transaminase and also that cortisol stimulates ribonucleic acid polymerase strongly suggest that the action of the hormone can be related to an increase in the synthesis of messenger ribonucleic acid molecules for the synthesis of the enzyme.</p></div>","PeriodicalId":100173,"journal":{"name":"Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects","volume":"91 2","pages":"Pages 239-247"},"PeriodicalIF":0.0,"publicationDate":"1964-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0926-6550(64)90247-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"23795081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 52
An artifact associated with the use of bentonite clay in the assay for ribonucleic acid polymerization in peanut cotyledons 用膨润土进行花生子叶核糖核酸聚合试验的人工制品
Amos E. Richmond, Joe H. Cherry
{"title":"An artifact associated with the use of bentonite clay in the assay for ribonucleic acid polymerization in peanut cotyledons","authors":"Amos E. Richmond,&nbsp;Joe H. Cherry","doi":"10.1016/0926-6550(64)90259-2","DOIUrl":"10.1016/0926-6550(64)90259-2","url":null,"abstract":"","PeriodicalId":100173,"journal":{"name":"Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects","volume":"91 2","pages":"Pages 330-332"},"PeriodicalIF":0.0,"publicationDate":"1964-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0926-6550(64)90259-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117823988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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