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Chondroitin sulfate proteoglycan : ウィキペディア英語版 | Chondroitin sulfate proteoglycan
Chondroitin sulfate proteoglycans (CSPGs) are proteoglycans consisting of a protein core and a chondroitin sulfate side chain. They are known to be structural components of a variety of human tissues, including cartilage, and also play key roles in neural development and glial scar formation. They are known to be involved in certain cell processes, such as cell adhesion, cell growth, receptor binding, cell migration, and interaction with other extracellular matrix constituents. They are also known to interact with laminin, fibronectin, tenascin, and collagen.〔 CSPGs are generally secreted from cells. Importantly, CSPGs are known to inhibit axon regeneration after spinal cord injury. CSPGs contribute to glial scar formation post injury, acting as a barrier against new axons growing into the injury site. CSPGs play a crucial role in explaining why the spinal cord doesn't self-regenerate after an injury. ==General structure== Chondroitin sulfate proteoglycans are composed of a core protein and a sugar side chain. The core protein is generally a glycoprotein, and the side chains are glycosaminoglycan (GAG) sugar chains attached through a covalent bond.〔 The GAG side chains are of different lengths depending on the CSPG. Each GAG chain consists of a linear pattern of alternating monosaccharide units: uronic acid and either N-acetylglucosamine or N-acetylgalactosamine.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Chondroitin sulfate proteoglycan」の詳細全文を読む
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