StemRD生长分化因子产品信息
Hedgehog是一种共价结合胆固醇的分泌性蛋白,在动物发育中起重要作用。果蝇的该***突变导致幼虫体表出现许多刺突,形似刺猬,故名Hedgehog。脊椎动物中至少有3个***编码Hedgehog蛋白,即:Shh(Sonic hedgehog)、Ihh(Indian hedgehog)和Dhh(desert hedgehog)。Hedgehog(Hh)信号通路调节胚胎发育和成体许多*********的自我更新与增殖。然而,那些在正常发育过程中受到Hh信号通路调节的******,在该信号通路异常时常常发生***。这些***包括***、***胶质瘤、基底细胞***、横纹肌肉瘤、******、小细胞***、***、***、******、黑色素瘤和多发性***瘤等。
StemRD生长分化因子 产品介绍:
Hedgehog******早在果蝇中作为体节极性***被发现,Hedgehog***编码一种分泌信号蛋白,突变会使***部分变成有毛部分,所以又戏称为“刺猬”***。哺乳动物发现其同源***有3个,分别为Sonic Hedgehog(SHh)、Indian Hedgehog(IHh)和Desert Hedgehog(DHh)。SHh 前体蛋白要经过一系列剪切与修饰,首先SHh 前体蛋白在内质网剪切去掉信号肽,,然后经过自我酶解形成19 kDa N 端蛋白和25 kDaC 端蛋白,SHh-N 端蛋白发挥了SHh信号分子的功能,执行SHh信号通路的主要功能。C 端蛋白拥有末端胆固醇转移酶活性,可以将胆固醇分子转移到SHh N 端蛋白的C 端,末端的胆固醇分子可以和细胞膜结合而锚定SHh N 端蛋白,从而有效控制SHh N 端蛋白的作用区域。
经典的SHh信号通路是由SHh配体、2个跨膜蛋白质收徒Patched(Ptch)和 ***oothened(***o)组成的受体复合物,以及下游的转录因子Gli蛋白(Gli-1、Gli-2和Gli-3)组成。
Hedgehog信号在胚胎发生过程中细胞分化和***形成起到非常重要的作用,在成体一些******Hh信号通路仍然活跃,调节***静止与增殖,Hh***在不同***过度表达或靶***突变等,均可导致细胞特异性***,参与***的发生与发展。
? Sonic Hedgehog, human蛋白活性比从原核细胞纯化得到的高10-15倍
? 生物活性在Swiss 3T3细胞通过Gli报告***检测,The EC50 3 to 10 ng/ml
? Sonic Hedgehog, human产品是通过哺乳动物细胞纯化得到,并经过SDS-PAGE 和HPLC双重鉴定纯度大于85%
StemRD生长分化因子 产品英文简述:
The hedgehog (Hh) gene encodes a secreted protein originally identified in Drosophila. The vertebrate homologs of Hh comprise of Sonic (SHh), Desert (DHh) and Indian (IHh). SHh plays an important role in embryonic development and in diseases such as cancer. Human SHh precursor is a 45kDa protein. An autocatalytic reaction yields a 19 kDa N-terminal domain that is biologically active. Because of unique post-translational modificati***, SHh produced in mammalian cells is much more biologically active than SHh produced from E. coli and is devoid of artifact associated with the E. coli products commercially ***ailable from other manufacturers.
? Purity: Greater than 85% as determined by SDS-PAGE and HPLC analysis
? Biological Activity: The activity was determined by using a Gli reporter gene assay in Swiss 3T3 cells. The EC50 ranges from 3 to 10 ng/ml
? For Research Use Only. Not for Use in Humans。
来源:StemRD生长分化因子 http:///hkstemcell-Products-15856453/
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