Polypeptide cartilage-inducing factors found in bone
    28.
    发明授权
    Polypeptide cartilage-inducing factors found in bone 失效
    在骨中发现的多肽软骨诱导因子

    公开(公告)号:US4843063A

    公开(公告)日:1989-06-27

    申请号:US204173

    申请日:1988-06-08

    摘要: Two proteins that are found in bone and that have in vivo chondrogenic/osteogenic activity in combination with a co-factor are described. Both proteins also were active in combination with EGF in the in vitro TGF-.beta. assay. Each has a molecular weight of approximately 26,000 daltons by SDS-PAGE. Each is reduced to a single polypeptide indicating that the proteins are probably homodimers. One has an N-terminal sequence identical to that of human placenta-derived TGF-.beta. whereas the other has an N-terminal sequence that is different from that of TGF-.beta. derived from human placenta. The two proteins may be purified to hmogeneity using RP-HPLC or acetic acid-urea gel electrophoresis.

    摘要翻译: 描述了在骨中发现并且具有与辅因子组合的体内软骨形成/成骨活性的两种蛋白质。 两种蛋白质在体外TGF-β测定中也与EGF组合有活性。 通过SDS-PAGE,每种分子量约26,000道尔顿。 每个被还原成单个多肽,表明蛋白质可能是同二聚体。 一个具有与人胎盘衍生的TGF-β相同的N-末端序列,而另一个具有与源自人胎盘的TGF-β不同的N-末端序列。 可以使用RP-HPLC或乙酸 - 尿素凝胶电泳将两种蛋白质纯化至均匀。