451
|
Modifications of ribonucleic acid by chemical carcinogens. Modification of Escherichia coli formylmethionine transfer ribonucleic acid with N-acetoxy-2-acetylaminofluorene. Biochemistry 1972; 11:3629-35. [PMID: 4559797 DOI: 10.1021/bi00769a021] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
452
|
Transformation of a rat epithelial-like cell line by murine sarcoma virus. J Natl Cancer Inst 1972; 49:379-85. [PMID: 4342614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
|
453
|
Abstract
Normal adult rat liver contains a high level of a synthetic RNA-dependent DNA polymerase activity, which is distinct from cellular DNA-dependent polymerases. It uses poly(dT).poly(rA) and poly(rA).poly(rU) as templates but has little or no response to DNA or several single-stranded RNAs.
Collapse
|
454
|
Interaction of 1-(2-chloroethyl)-3-cyclohexyl-1-nitrosourea (NSC 79037) with nucleic acids and proteins in vivo and in vitro. Cancer Res 1972; 32:22-7. [PMID: 5007685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
455
|
Modification of ribonucleic acid by chemical carcinogens. IV. Circular dichroism and proton magnetic resonance studies of oligonucleotides modified with N-2-acetylaminofluorene. J Mol Biol 1971; 62:331-46. [PMID: 5138335 DOI: 10.1016/0022-2836(71)90431-1] [Citation(s) in RCA: 74] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
456
|
|
457
|
|
458
|
Studies on rat liver phenylalanyl transfer ribonucleic acid synthetase. I. Purification, stabilization, and complex formation. J Biol Chem 1971; 246:3494-9. [PMID: 5578904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
|
459
|
|
460
|
|
461
|
Chemical carcinogens and RNA. Cancer Res 1971; 31:651-5. [PMID: 5582124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
462
|
Modifications of ribonucleic acid by chemical carcinogens. 3. Template activity of polynucleotides modified by N-acetoxy-2-acetylamino-fluorene. J Biol Chem 1971; 246:1123-8. [PMID: 5543678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
|
463
|
|
464
|
Structure of the fluorescent Y base from yeast phenylalanine transfer ribonucleic acid. J Am Chem Soc 1970; 92:7617-9. [PMID: 5490722 DOI: 10.1021/ja00729a035] [Citation(s) in RCA: 126] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
465
|
Studies on transfer RNA population during liver regeneration in the rat. BIOCHIMICA ET BIOPHYSICA ACTA 1970; 224:259-62. [PMID: 4321419 DOI: 10.1016/0005-2787(70)90641-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
466
|
Quantitative differences in proline tRNA content of rat liver and granulation tissue. Biochem Biophys Res Commun 1970; 40:708-15. [PMID: 4321661 DOI: 10.1016/0006-291x(70)90961-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
467
|
Coding and conformational properties of oligonucleotides modified with the carcinogen N-2-acetylaminofluorene. Proc Natl Acad Sci U S A 1970; 66:488-94. [PMID: 5271176 PMCID: PMC283071 DOI: 10.1073/pnas.66.2.488] [Citation(s) in RCA: 46] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The present studies were undertaken to determine the mechanism by which attachment of the carcinogen N-2-acetylaminofluorene to guanosine residues in nucleic acids distors their structure and function. Oligonucleotides were modified with N-acetoxy-2-acetylaminofluorene, repurified, and their base compositions analyzed. Evidence is presented that acetylaminofluorene residues bound to guanosines in GpUpU, ApApG, or poly (U,G) inactivates their function in codon recognition. Circular dichroism spectra suggest that this is caused by gross conformational changes in these compounds involving both a rotation about the glycosidic bond of guanosine residues bearing N-2-acetylaminofluorene, as well as stacking interactions between the drug and bases adjacent to the substituted guanosine.
Collapse
|
468
|
Modifications of ribonucleic acid by chemical carcinogens. I. In vitro modification of transfer ribonucleic acid by N-acetoxy-2-acetylaminofluorene. Biochemistry 1970; 9:496-502. [PMID: 4906322 DOI: 10.1021/bi00805a007] [Citation(s) in RCA: 42] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
469
|
Modifications of ribonucleic acid by chemical carcinogens. II. In vivo reaction of N-2-acetylaminofluorene with rat liver ribonucleic acid. Biochemistry 1970; 9:503-8. [PMID: 5415957 DOI: 10.1021/bi00805a008] [Citation(s) in RCA: 40] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
470
|
Abstract
Direct evidence for the adaptor hypothesis has been obtained by examining the codon recognition of a purified Escherichia coli valine transfer ribonucleic acid which was enzymatically mischarged with phenylalanine labeled with carbn-14 by reaction with purified phenylalanyl-transfer ribonucleic acid synthetase from Neurospora crassa. The mischarged transfer ribonucleic acid recognized the valine codons but failed to recognize the phenylalanine codon when tested in trinucleotide-directed ribosomal binding assay.
Collapse
|
471
|
|
472
|
|
473
|
Abstract
-A comparison of the elution profiles of 18 aminoacyl-tRNA's from Novikoff hepatoma with those from normal liver on a methylated albuminkieselguhr column revealed the occurrence of new species of tRNA for histidine, tyrosine, and asparagine in the hepatoma. In addition, the hepatoma tRNA's for arginine, isoleucine, lysine, methionine, serine, alanine, and tryptophan eluted at a higher salt concentration than the corresponding tRNA's of normal liver. The remaining eight amino acids did not show any significant differences in the elution profiles.
Collapse
|
474
|
Fractionation of rat liver transfer ribonucleic acid. Isolation of tyrosine, valine, serine, and phenylalanine transfer ribonucleic acids and their coding properties. Biochemistry 1969; 8:832-42. [PMID: 5781021 DOI: 10.1021/bi00831a011] [Citation(s) in RCA: 67] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
475
|
Fidelity in protein synthesis. The role of the ribosome. J Biol Chem 1968; 243:5044-8. [PMID: 4878431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
|
476
|
A possible role of transfer RNA in the mechanism of carcinogenesis. Cancer Res 1968; 28:1871-4. [PMID: 4300223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
477
|
Structure-activity studies on the mechanism of action of miracil D. Cancer Res 1968; 28:601-7. [PMID: 4966649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
478
|
|
479
|
Proflavine binding to transfer ribonucleic acid, synthetic ribonucleic acids, and deoxyribonucleic acid. J Biol Chem 1967; 242:3763-8. [PMID: 5341263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
|
480
|
Proflavine inhibition of protein synthesis. J Biol Chem 1967; 242:3757-62. [PMID: 6037541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
|
481
|
Miracil D: effects on nucleic acid synthesis, protein synthesis, and enzyme induction in Escherichia coli. BIOCHIMICA ET BIOPHYSICA ACTA 1967; 142:440-9. [PMID: 4861437 DOI: 10.1016/0005-2787(67)90625-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
482
|
Abstract
After heating at 65 C, ribosomes isolated from Bacillus stearothermophilus were strikingly more heat-stable than comparable preparations from Escherichia coli when tested for ability to support polyuridylic acid-directed phenylalanine incorporation at 37 C. The stability of ribosomes was also determined by measurements of hyperchromicity at 259 mmu while heating them from 25 to 90 C. In standard buffer containing 0.01 m Mg(++), the T(m) (temperature at the midpoint of total hyperchromicity) of E. coli and B. stearothermophilus ribosomes was 71 and 81 C, respectively. In a magnesium-free buffer, the T(m) of E. coli and B. stearothermophilus ribosomes was 44 and 64 C, respectively. Putrescine (0.01 m) was more effective in stabilizing ribosomes from B. stearothermophilus than those from E. coli. Spermidine (0.001 m), on the other hand, was more effective in stabilizing ribosomes from E. coli than those from B. stearothermophilus. Melting curves of total ribosomal ribonucleic acid (rRNA) from E. coli and B. stearothermophilus revealed T(m) values of 50 and 60 C, respectively. Putrescine stabilized thermophile rRNA, but had no effect on E. coli rRNA. Sucrose density gradients demonstrated that thermophile 23S ribonucleic acid was degraded during storage at -20 C; the 23S component from E. coli was stable under these conditions. The results are discussed in terms of the mechanism of ribosome heat stability and the role of the ribosome in governing the temperature limits for bacterial growth.
Collapse
|
483
|
Fidelity in the translation of messenger ribonucleic acids in mammalian subcellular systems. Biochemistry 1966; 5:3332-9. [PMID: 5971842 DOI: 10.1021/bi00874a036] [Citation(s) in RCA: 40] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
484
|
Protein synthesis in a subcellular system from Bacillus stearothermophilus. BIOCHIMICA ET BIOPHYSICA ACTA 1966; 114:593-605. [PMID: 5914320 DOI: 10.1016/0005-2787(66)90107-9] [Citation(s) in RCA: 48] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
485
|
Fidelity during translation of the genetic code. COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY 1966; 31:671-81. [PMID: 4866411 DOI: 10.1101/sqb.1966.031.01.086] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
486
|
|
487
|
The Influence of Phenothiazine and Some of its Derivatives on the Determination of 5-Hydroxyincioleacetic Acid in Urine. Clin Chem 1958. [DOI: 10.1093/clinchem/4.1.66] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
The experimental work in this paper demonstrates that derivatives of phenothiazine interfere with the chemical determination of 5-HIAA. This holds true when attempts are made to determine 5-HIAA in the presence of Compazine, Sparine, Phenergan or chlorpromazine, and in the case of the latter substance also when administered to a patient. Thus, it is impossible by the chemical method to determine 5-HIAA in the urine under these circumstances, and results so obtained will be incorrect. However, with the chromatographic method of Curzon (7) no such interference occurs, and, utilizing this technic, it is possible to determine 5-HIAA in the urine of a patient while he is receiving chlorpromazine. In this manner it was shown that the urinary excretion of 5-HIAA in a patient with metastatic carcinoid was not influenced by the administration of chlorpromazine. (See ADDENDUM, p. 76.)
Collapse
|