RB1

产品英文名称：
Recombinant Human Retinoblastoma Associated Protein

英文简称:
RB1

中文名称:
重组人视黄酸受体应答蛋白2

背景资料:
Retinoblastoma （RB） is an embryonic malignant neoplasm of retinal origin. It almost always presents in early childhood and is often bilateral. Spontaneous regression （’cure’） occurs in some cases. Retinoblastoma acts as a regulator of other genes and forms a complex with adenovirus e1a and with sv40 large t antigen. Retinoblastoma acts as a tumor suppressor and modulats functionally certain cellular proteins with which t and e1a compete for pocket binding. Retinoblastoma is potent inhibitor of e2f-mediated trans-activation， recruits and targets histone methyltransferase suv39h1 leading to epigenetic transcriptional repression， inhibits the intrinsic kinase activity of taf1.

产品描述:
Retinoblastoma Human Recombinant fused with 6X His tag produced in E.Coli is a single， non-glycosylated， polypeptide chain containing 146 amino acids and having a molecular mass of 16.5 kDa.The Retinoblastoma is purified by proprietary chromatographic techniques.
来源宿主:
大肠杆菌中重组表达

序列:
MASFPSSPLRIPGGNIYISPLKSPYKISEGLPTPTKMTPRSRILVSIGESFGTSEKFQKINQMVCNSDRVLKRSAEGSNPPKPLKKLRFDIEGSDEADGSKHLPGESKFQQKLAEMTSTRTRMQKQKMNDSMDTSNKEEKHHHHHH.

溶解建议:
Sterile Filtered White lyophilized （freeze-dried） powder. The RB1 （1 mg/ml） was lyophilized after extensive dialyses against 1xPBS pH-7.4. It is recommended to reconstitute the lyophilized Retinoblastoma in sterile 18MΩ-cm H2O not less than 100 ug/ml， which can then be further diluted to other aqueous solutions.

保存建议：
Lyophilized Retinoblastoma although stable at room temperature for 3 weeks， should be stored desiccated below -18℃. Upon reconstitution Retinoblastoma 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.
其他简介：

  ProSpec是一家全球著名细胞因子蛋白及相关抗体生产和研发品牌。ProSpec的生产和研发工厂位于以色列，专注于蛋白（重组及合成）生产研发，其独有的细菌和哺乳动物表达和蛋白折叠技术使其能在17年内成长为国际一流的科研级蛋白供应商。目前ProSpec可以提供细胞因子，生长因子，激素，信号蛋白，病毒抗原等近800种重组蛋白和100多种抗体，是世界上提供蛋白品种最多的公司之一，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。
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