Recombinant Rat RB1 protein (His Tag)
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- 表达系统： E.coli
- 蛋白编码： P33568
| 别称 |
OSRC;RB;RB1;osteosarcoma;p105-Rb;pRb;pp110;retinoblastoma 1;retinoblastoma suspectibility protein;retinoblastoma-associated protein
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| 表达系统 |
E.coli
|
| 序列 |
Arg229-Met450
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| 蛋白编码 |
P33568
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| 种属 |
Rat
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| 计算分子量 |
24.3 kDa
|
| 表观分子量 |
32 kDa
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| 标签 |
N-His
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| 生物活性 |
Not validated for activity
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| 纯度 |
> 95% as determined by reducing SDS-PAGE.
|
| 内毒素 |
< 10 EU/mg of the protein as determined by the LAL method
|
| 保存条件 |
Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
|
| 运输条件 |
This product is provided as lyophilized powder which is shipped with ice packs.
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| 制剂 |
Lyophilized from a 0.2 μm filtered solution in PBS with 5% Trehalose and 5% Mannitol.
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| 复溶方法 |
It is recommended that sterile water be added to the vial to prepare a stock solution of 0.5 mg/mL. Concentration is measured by UV-Vis.
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| 背景 |
Retinoblastoma 1 protein (RB-1, also retinoblastoma-associated protein, pp110, and p105-Rb) is a 110 kDa tumor suppressor gene and member of the retinoblastoma protein family. Rat RB-1 is 920 amino acids in length. The protein contains a Pocket domain (aa 366-763), which is comprised of two other domains, domain A (aa 366-572) and domain B (aa 632-763), and a “spacer” (aa 573-631). The Pocket domain binds to threonine-phosphorylated domain C (aa 763-920), which thereby prevents interaction with heterodimeric E2F/DP transcription factor complexes. RB-1 is expressed in the retina. The underphosphorylated, active form of RB-1 interacts with E2F1 and represses its transcription activity, leading to cell cycle arrest. Defects in RB-1 lead to the childhood cancer retinoblastoma.
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实验操作视频
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