Cartilage intermediate layer protein
    6.
    发明授权
    Cartilage intermediate layer protein 失效
    软骨中间层蛋白

    公开(公告)号:US07211649B1

    公开(公告)日:2007-05-01

    申请号:US10349188

    申请日:2003-01-23

    IPC分类号: A61K38/39 C07H21/04 C12H5/16

    CPC分类号: C07K14/47 A61K38/00

    摘要: A novel, N-oligosaccharide-substituted-specific protein of approximately 91.5 kDa was purified from extracts of human articular cartilage and designated Cartilage Intermediate Layer Protein (CILP). The protein is a chondrocyte product which is deposited in the interterritorial matrix. The gene encoding CILP, as well as its mRNA, were isolated and characterized. A single 4.2 kb mRNA detected in human articular cartilage encodes a polypeptide of 1184 amino acids with a calculated molecular weight of 132.5 kDa. The protein has a putative signal peptide of 21 amino acids, and is a proform of two polypeptides. The amino-terminal half corresponds to CILP (molecular weight of 78.5 kDa, not including post-translational modifications) and the carboxy-terminal half corresponds to a protein homologous to a porcine nucleotide pyrophosphohydrolase, NTPPHase (molecular weight of 51.8 kDa, not including post-translational modifications).

    摘要翻译: 从人关节软骨和指定软骨中间层蛋白(CILP)的提取物中纯化约91.5kDa的新型N-寡糖取代特异性蛋白质。 该蛋白质是一种软骨细胞产品,其沉积在间质基质中。 分离和表征编码CILP的基因及其mRNA。 在人关节软骨中检测到的单个4.2kb mRNA编码1184个氨基酸的多肽,计算分子量为132.5kDa。 该蛋白具有21个氨基酸的推定信号肽,并且是两个多肽的形式。 氨基末端一半对应于CILP(分子量为78.5kDa,不包括翻译后修饰),羧基末端一半对应于与猪核苷酸焦磷酸水解酶NTPPHase(分子量为51.8kDa,不包括柱 翻译修饰)。