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. 1968 Apr;43(4):645–648. doi: 10.1104/pp.43.4.645

Adenine Phosphoribosyltransferase in Plant Tissues: Some Effects of Kinetin on Enzymic Activity 1

P B Nicholls 1,2, A W Murray 1
PMCID: PMC1086901  PMID: 16656820

Abstract

Adenine phosphoribosyltransferase activity was measured in extracts of soybean (Glycine max var. Acme) callus and of senescing barley leaves (Hordeum distichon c.v. Prior). The enzyme from soybean callus had Michaelis constants for adenine and 5-phosphoribosyl pyrophosphate of 1.5 and 7.5 μm respectively and was inhibited by AMP and stimulated by ATP. The presence of kinetin was found to considerably increase the activity of adenine phosphoribosyltransferase in extracts of soybean callus and senescing barley leaves.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. BROCKMAN R. W., ANDERSON E. P. BIOCHEMISTRY OF CANCER (METABOLIC ASPECTS). Annu Rev Biochem. 1963;32:463–512. doi: 10.1146/annurev.bi.32.070163.002335. [DOI] [PubMed] [Google Scholar]
  2. Hori M., Henderson J. F. Kinetic studies of adenine phosphoribosyltransferase. J Biol Chem. 1966 Jul 25;241(14):3404–3408. [PubMed] [Google Scholar]
  3. Key J. L. Effect of purine and pyrimidine analogues on growth and RNA metabolism in the soybean hypocotyl-the selective action of 5-fluorouracil. Plant Physiol. 1966 Oct;41(8):1257–1264. doi: 10.1104/pp.41.8.1257. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Key J. L. Ribonucleic Acid and Protein Synthesis as Essential Processes for Cell Elongation. Plant Physiol. 1964 May;39(3):365–370. doi: 10.1104/pp.39.3.365. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Miller C. O. Evidence for the natural occurrence of zeatin and derivatives: compounds from maize which promote cell division. Proc Natl Acad Sci U S A. 1965 Oct;54(4):1052–1058. doi: 10.1073/pnas.54.4.1052. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Murray A. W. Studies on the nature of the regulation by purine nucleotides of adenine phosphoribosyltransferase and of hypoxanthine phosphoribosyltransferase from Ehrlich ascites-tumour cells. Biochem J. 1967 Apr;103(1):271–279. doi: 10.1042/bj1030271. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Murray A. W., Wong P. C. Stimulation of adenine phosphoribosyltransferase by adenosine triphosphate and other nucleoside triphosphates. Biochem J. 1967 Aug;104(2):669–674. doi: 10.1042/bj1040669. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Nitsan J., Lang A. Inhibition of cell division and cell elongation in higher plants by inhibitors of DNA synthesis. Dev Biol. 1965 Dec;12(3):358–376. doi: 10.1016/0012-1606(65)90003-5. [DOI] [PubMed] [Google Scholar]
  9. Wolcott J. H., Ross C. Orotidine-5'-phosphate decarboxylase and pyrophosphorylase of bean leaves. Plant Physiol. 1967 Feb;42(2):275–279. doi: 10.1104/pp.42.2.275. [DOI] [PMC free article] [PubMed] [Google Scholar]

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