Abstract
Comparison has been made of the effect of alloxan-diabetes on the multiple forms of hexokinase (EC 2.7.1.1) in adipose tissue and lung. Types I and II hexokinase were distinguished in adipose tissue by their different stabilities to heat treatment, which made it possible to determine the activity of each form spectrophotometrically; additional confirmatory evidence was obtained from starch-gel electrophoresis. Type II hexokinase was markedly depressed in adipose tissue from alloxan-diabetic rats. Lung contained types I, II and III hexokinase, type I predominating. There was no significant change in the pattern of these multiple forms of hexokinase in lung from alloxan-diabetic rats. These results are discussed in relation to current ideas that the insulin-sensitivity of a tissue may be correlated with the content of type II hexokinase.
Full text
PDF




Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- ABRAHAM S., CADY P., CHAIKOFF I. L. Effect of insulin in vitro in pathways of glucose utilization, other than Embden-Meyerhof, in rat mammary gland. J Biol Chem. 1957 Feb;224(2):955–962. [PubMed] [Google Scholar]
- BALL E. G., JUNGAS R. L. SOME EFFECTS OF HORMONES ON THE METABOLISM OF ADIPOSE TISSUE. Recent Prog Horm Res. 1964;20:183–214. [PubMed] [Google Scholar]
- FOLLEY S. J., GREENBAUM A. L. Insulin and metabolism of fatty acids. Br Med Bull. 1960 Sep;16:228–232. doi: 10.1093/oxfordjournals.bmb.a069840. [DOI] [PubMed] [Google Scholar]
- GLOCK G. E., McLEAN P. Further studies on the properties and assay of glucose 6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase of rat liver. Biochem J. 1953 Oct;55(3):400–408. doi: 10.1042/bj0550400. [DOI] [PMC free article] [PubMed] [Google Scholar]
- GLOCK G. E., McLEAN P. Levels of enzymes of the direct oxidative pathway of carbohydrate metabolism in mammalian tissues and tumours. Biochem J. 1954 Jan;56(1):171–175. doi: 10.1042/bj0560171. [DOI] [PMC free article] [PubMed] [Google Scholar]
- González C., Ureta T., Sánchez R., Niemeyer H. Multiple molecular forms of ATP:hexose 6-phosphotransferase from rat liver. Biochem Biophys Res Commun. 1964 Jul 1;16(4):347–352. doi: 10.1016/0006-291x(64)90038-5. [DOI] [PubMed] [Google Scholar]
- Grossbard L., Schimke R. T. Multiple hexokinases of rat tissues. Purification and comparison of soluble forms. J Biol Chem. 1966 Aug 10;241(15):3546–3560. [PubMed] [Google Scholar]
- KATZEN H. M., SODERMAN D. D., NITOWSKY H. M. KINETIC AND ELECTROPHORETIC EVIDENCE FOR MULTIPLE FORMS OF GLUCOSE-ATP PHOSPHOTRANSFERASE ACTIVITY FROM HUMAN CELL CULTURES AND RAT LIVER. Biochem Biophys Res Commun. 1965 Apr 23;19:377–382. doi: 10.1016/0006-291x(65)90472-9. [DOI] [PubMed] [Google Scholar]
- Katzen H. M., Schimke R. T. Multiple forms of hexokinase in the rat: tissue distribution, age dependency, and properties. Proc Natl Acad Sci U S A. 1965 Oct;54(4):1218–1225. doi: 10.1073/pnas.54.4.1218. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Katzen H. M. The effect of diabetes and insulin in vivo and in vitro on a low Km form of hexokinase from various rat tissues. Biochem Biophys Res Commun. 1966 Aug 23;24(4):531–536. doi: 10.1016/0006-291x(66)90352-4. [DOI] [PubMed] [Google Scholar]
- McLean P., Brown J. Activities of some enzymes concerned with citrate and glucose metabolism in transplanted rat hepatomas. Biochem J. 1966 Mar;98(3):874–882. doi: 10.1042/bj0980874. [DOI] [PMC free article] [PubMed] [Google Scholar]
- McLean P., Brown J., Greenslade K., Brew K. Effect of alloxan-diabetes on the glucose-ATP phosphotransferase activity of adipose tissue. Biochem Biophys Res Commun. 1966 Apr 19;23(2):117–121. doi: 10.1016/0006-291x(66)90514-6. [DOI] [PubMed] [Google Scholar]
- POPJAK G., BEECKMANS M. L. Extrahepatic lipid synthesis. Biochem J. 1950 Aug;47(2):233–238. doi: 10.1042/bj0470233. [DOI] [PMC free article] [PubMed] [Google Scholar]
- SALAS J., SALAS M., VINUELA E., SOLS A. GLUCOKINASE OF RABBIT LIVER. J Biol Chem. 1965 Mar;240:1014–1018. [PubMed] [Google Scholar]
- SHARMA C., MANJESHWAR R., WEINHOUSE S. EFFECTS OF DIET AND INSULIN ON GLUCOSE-ADENOSINE TRIPHOSPHATE PHOSPHOTRANSFERASES OF RAT LIVER. J Biol Chem. 1963 Dec;238:3840–3845. [PubMed] [Google Scholar]
- WALKER D. G. ON THE PRESENCE OF TWO SOLUBLE GLUCOSE-PHOSPHORYLATING ENZYMES IN ADULT LIVER AND THE DEVELOPMENT OF ONE OF THESE AFTER BIRTH. Biochim Biophys Acta. 1963 Oct 1;77:209–226. doi: 10.1016/0006-3002(63)90494-3. [DOI] [PubMed] [Google Scholar]
- WINEGRAD A. I., RENOLD A. E. Studies on rat adipose tissue in vitro. II. Effects of insulin on the metabolism of specifically labeled glucose. J Biol Chem. 1958 Aug;233(2):273–276. [PubMed] [Google Scholar]
- Walker D. G., Rao S. The role of glucokinase in the phosphorylation of glucose by rat liver. Biochem J. 1964 Feb;90(2):360–368. doi: 10.1042/bj0900360. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Walters E., McLean P. Multiple forms of glucose-adenosine triphosphate phosphotransferase in rat mammary gland. Biochem J. 1967 Sep;104(3):778–783. doi: 10.1042/bj1040778. [DOI] [PMC free article] [PubMed] [Google Scholar]