Interconvertible Forms of Glycogen Phosphorylase in Neurospora crassa*

  1. María T. Téllez-Iñón and
  2. Héctor N. Torres
  1. INSTITUTO DE INVESTIGACIONES BIOQUÍMICAS „FUNDACIÓN CAMPOMAR”, BUENOS AIRES, ARGENTINA
  2. FACULTAD DE CIENCIAS EXACTAS Y NATURALES, BUENOS AIRES, ARGENTINA

Abstract

Glycogen phosphorylase in extracts of N. crassa mycelia has two interconvertible forms: one active (a form) and the other inactive (b form) in the absence of 5′-AMP. The conversion of the b to the a form requires ATP-Mg2+ and proceeds at higher rate in the presence of 3′,5′-cyclic AMP.

Footnotes

  • Supported by a grant of the Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina).

  • Career investigator of the Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina), and to whom requests for reprints should be sent.

  • * This work was supported by grants from the U.S. Public Health Service (GM 03442) and the Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina).

« Previous | Next Article »Table of Contents