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Distribution of natural polyanions.
| compartment | polyanions |
|---|---|
|
extracellular environment
(biologic fluids, extracellular matrix) |
free GAGs and GSLs, proteoglycans |
| cell membrane | membrane-associated proteoglycans and GSLs, NeuAc-bearing glycoproteins |
|
intracellular environment
(different compartments/organules) |
GAGs, proteoglycans, GSLs, RNA, DNA, ribosomes, phosphorylated proteins, actin, microtubules |
