绒毛膜促性腺激素

背景资料

Human chorionic gonadotropin （hCG） is a peptide hormone produced in pregnancy， that is made by the embryosoon after conception and later by the syncytiotrophoblast（part of the placenta）. Its role is to prevent the disintegration of the corpus luteumof the ovaryand thereby maintain progesterone production that is critical for a pregnancy in humans. hCG may have additional functions， for instance it is thought that it affects the immune tolerance of the pregnancy. Early pregnancy testing generally is based on the detection or measurement of hCG.

产品描述

Human Chorionic Gonadotropin is produced from a sterile preparation of placental glucoprotein urine of pregnant women having a total molecular mass of 36，700 Dalton. The hCG consists of 237 amino acids， a chain-92 amino acids and b chain-145 amino acids. The hCG is purified by proprietary chromatographic techniques.

产品形式

Human chorionic gonadotropin （hCG） is a peptide hormone produced in pregnancy， that is made by the embryosoon after conception and later by the syncytiotrophoblast（part of the placenta）. Its role is to prevent the disintegration of the corpus luteumof the ovaryand thereby maintain progesterone production that is critical for a pregnancy in humans. hCG may have additional functions， for instance it is thought that it affects the immune tolerance of the pregnancy. Early pregnancy testing generally is based on the detection or measurement of hCG.

保存建议

Lyophilized hCG although stable at room temperature for 3 weeks， should be stored desiccated below -18℃. Upon reconstitution CG-beta should be stored at 4℃ between 2-7 days and for future use below -18℃. For long term storage it is recommended to add a carrier protein （0.1% HSA or BSA）. Please prevent freeze-thaw cycles.

其他

ProSpec 是一家全球著名细胞因子蛋白生产和研发的公司，具有20多年的生产经验，专注于蛋白（重组及合成）生产研发。我们的核心产品包括：干扰素、白介素、骨蛋白、肿瘤坏死因子、成纤维生长因子、瘦素、干细胞因子、催乳素、表皮生长因子、胰岛素样生长因子、神经生长因子、集落刺激因子、激素、酶、病毒抗原以及各种重组蛋白等。 领先的生产工艺和规模使其可以提供毫克到克级蛋白，价格优于同类公司。绝大部分产品是天然成熟型蛋白，而不含有标签蛋白。考虑到大部分研究者希望能更灵活地配制蛋白溶液，ProSpec-Tany绝大部分产品没有添加保护剂或盐，这就对工艺提出了更高的要求。同时，ProSpec-Tany绝大部分产品为冻干粉，因此易于运输和保存。