English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The control of glycogen degradation in animal systems involves the regulation of glycogen phosphorylase (1,4-a-~-glucan :orthophosphate a-glucosyltransferase ; EC 2.4.1 .1) through a complex sequence of enzymic interconversions between AMP-dependent and AMP-independent forms of the enzyme (Fischer et al., 1970). Rosness et al. (1971) have reported ihat addition of cyclic AMP during development in the cellular slime mould Dictyostehn discoideum stimulated the rate of glycogen degradation and proposed that interconversion was occurring between two forms of the phosphorylase. However, studies with crude cell-free extracts did not support this hypothesis. Glycogen phosphorylase from D. discoideurn has recently been purified (Thomas & Wright, 1976) and it is similar to phosphorylases from other microbial and plant systems in which only one form exists. To understand more clearly the factors which might regulate its activity, the effects of several activators and inhibitors have now been investigated.

journal of general microbiology/journal of general microbiology

Effects of Adenosine 5'-Monophosphate, Glucose 1-Phosphate and Nucleotide Sugars on the Activity of Glycogen Phosphorylase from Dictyostelium discoideum