<biochemistry> Branched polymer of D glucose (mostly _(1-4) linked, but some _(1-6) at branch points).

Size range very variable, up to 10exp5 glucose units. Major short term storage polymer of animal cells and is particularly abundant in the liver and to a lesser extent in muscle. In the electron microscope glycogen has a characteristic asterisk or star appearance.

This entry appears with permission from the Dictionary of Cell and Molecular Biology

(11 Mar 2008)