Glycogen
= Glycogen
{wiki}
<Glycogen> is a highly branched <polysaccharide> of <glucose> units, serving as a storage form of <glucose> in animals. Liver and muscle provide familiar examples. The classical <second messenger> experiments measured regulation of an <enzyme> involved in <glycogen> breakdown, <glycogen phosphorylase>. https://openstax.org/books/biology-2e/pages/3-2-carbohydrates[Clark, Douglas and Choi, Biology 2e, 3.2: glycogen]{ref}