A particular glycoprotein may occur in forms that differ in the structure of one or more or its carbohydrate units, a phenomenon known as microheterogeneity.
Transformed and rewritten from PDF version (entry
http://www.iupac.org/goldbook/M03902.pdf)
by: Miloslav Nic, Jiri Jirat, Bedrich Kosata, ICT Prague, Czech Republic