cellular component organization cellular component organization cellular component organization cellular component organization cellular component organization cellular component organization cellular component organization cellular component organization cellular component organization cellular component organization cellular component organizationcellular component organization extracellular matrix structural constituent extracellular matrix structural constituent extracellular matrix structural constituent extracellular matrix structural constituent extracellular matrix structural constituent extracellular matrix structural constituent extracellular matrix structural constituent extracellular matrix structural constituent extracellular matrix structural constituent extracellular matrix structural constituent extracellular matrix structural constituentextracellular matrix structural constituent extracellular region protein-containing complex extracellular region protein-containing complex extracellular region protein-containing complex extracellular region protein-containing complex extracellular region protein-containing complex extracellular region protein-containing complex extracellular region protein-containing complex extracellular region protein-containing complex extracellular region protein-containing complex extracellular region protein-containing complex extracellular regionextracellular region protein-containing complexprotein-containing complex