Cartilage ultrastructure in proteoglycan‐deficient zebrafish mutants brings to light new candidate genes for human skeletal disorders

Abstract excerpt

Proteoglycans are molecules consisting of protein cores onto which sugar chains, i.e., glycosaminoglycans (GAGs) such as heparan or chondroitin sulphates, are attached. Proteoglycans are produced by nearly all cells, and once secreted they become a major component of the extracellular matrix. Cartilage is particularly rich in proteoglycans, and changes in the structure and composition of GAGs have been found in...

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