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Recombinant Human Pituitary Tumor-Transforming Protein 1
Recombinant Human Pituitary Tumor-Transforming Protein 1
- 中文名称：
- Recombinant Human Pituitary Tumor-Transforming Protein 1
- 英文名称：
- Recombinant Human Pituitary Tumor-Transforming Protein 1
- 品牌：
- AAA Biotech
- 品牌介绍：
- AAA Biotech专注于为全球生命科学研究提供高品质的蛋白质研究工具，核心产品包括经严格验证的抗体、重组蛋白及ELISA试剂盒。
- 货号：
- AAA38682
- 规格：
- 0.005 mg|0.02 mg|1 mg|2x1 mg|3x1 mg
- 保存建议：
- Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Avoid multiple freeze-thaw cycles.
- 货期：
- 6-8周
- 纯度：
- Greater than 90.0% as determined by SDS-PAGE.
- 产品形式：
- The PTTG1 solution (1mg/ml) contains 20mM Tris-HCl buffer (pH8.0), 0.1M NaCl, 20% glycerol, 1mM EDTA and 0.1mM PMSF.
- 免责声明：
- *本产品仅供科研实验使用，不得用于临床诊断。*
- 说明书：
Description: PTTG1 Human Recombinant fused with 20 amino acid His tag at N-terminus produced in E Coli is a single, non-glycosylated, polypeptide chain containing 222 amino acids (1- 202 a.a.) and having a molecular mass of 24.1kDa.The PTTG1 is purified by proprietary chromatographic techniques.
Introduction: PTTG1 (Securin) is mainly involved in the regulation of sister chromatid separation during cell division. Securin is a regulatory protein, which has a central role in chromosome stability, in the p53/TP53 pathway, and DNA repair. Additional two roles have been identified for PTTG1; the first one is to facilitate the transport of separase (cysteine protease) to the nucleus and the second role is to hinder the catalytic activity of separase. PTTG1 is ubiquitinated by the APC (Anaphase Promoting Complex), and subsequently degraded by the Proteasome, releasing separase. During the mitosis, PTTG1 blocks Separase/ESPL1 function, thus preventing the proteolysis of the cohesin complex and the ensuing segregation of the chromosomes. However, PTTG1 function is not restricted to a blocking activity only, since it is required to activate ESPL1. PTTG1 is ubiquitinated at the beginning of anaphase, leading to its destruction and to the liberation of ESPL1. PTTG1 contains two PXXP motifs, which are necessary for its transforming and tumorigenic activities, in addition to its stimulation of basic fibroblast growth factor expression. It also contains a D box (destruction box) which is essential for its degradation by the APC. The acidic C-terminal region of the Securin can function as a transactivation domain. Even though, PTTG1 is primarily a cytosolic protein, it partially localizes in the nucleus.PTTG1 is highly expressed in various tumors; it also has transforming activity in vitro and tumorigenic activity in vivo. Furthermore, PTTG1 negatively regulates the transcriptional activity and related apoptosis activity of TP53.
