کراتوکَن (انگلیسی: Keratocan) یا بهاختصار «KTN» که با نامِ «کراتان سولفات پروتئوگلیکان کراتوکن» هم شناخته میشود، نام پروتئینی است که در انسان توسط ژن «KERA» کُد میشود.[۴][۵][۶]
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