Dolichol Monophosphate Glucose: An Intermediate in Glucose Transfer in Liver*

  1. Nicolás H. Behrens and
  2. Luis F. Leloir
  1. INSTITUTO DE INVESTIGACIONES BIOQUÍMICAS „FUNDACIÓN CAMPOMAR”, BUENOS AIRES, ARGENTINA
  2. FACULTAD DE CIENCIAS EXACTAS Y NATURALES, BUENOS AIRES, ARGENTINA

Abstract

The microsomal fraction of liver has been found to catalyze glucose transfer from UDPG to a lipid acceptor which appears to be identical to the compound obtained by chemical phosphorylation of dolichol. The substance formed (dolichol monophosphate glucose) is acid labile and yields 1,6-anhydroglucosan by alkaline treatment. It can be used as substrate by the enzyme system yielding a glucoprotein which is subsequently hydrolyzed to glucose.

Footnotes

  • Career investigator of the Consejo Nacional de Investigaciones Cientificas y Técnicas (Argentina).

  • Reprints may be addressed to Dr. Leloir, Instituto de Investigaciones Bioquímicas „Fundación Campomar,” 2490 Obligado, Buenos Aires (28), Argentina.

  • * Supported in part by grants from the U.S. Public Health Service (GM 03442) and the Consejo Nacional de Investigaciones Cientificas y Técnicas (Argentina).

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