Compounds and molecular complexes that consist of very large numbers of atoms and are generally over 500 kDa in size. In biological systems macromolecular substances usually can be visualized using ELECTRON MICROSCOPY and are distinguished from ORGANELLES by the lack of a membrane structure.

Annotation

general only; do not use as a routine coordinate with specific macromolecular substances

DUI

D046911 MeSH Browser

CUI

M0455942

History note

2005

Public note

2005; see MACROMOLECULAR SYSTEMS 1966-2004