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Recombinant Human Thyrostimulin Beta
Recombinant Human Thyrostimulin Beta
- 中文名称：
- Recombinant Human Thyrostimulin Beta
- 英文名称：
- Recombinant Human Thyrostimulin Beta
- 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：
- AAA38352
- 规格：
- 0.002 mg|0.01 mg|1 mg|2x1 mg|3x1 mg
- 保存建议：
- Lyophilized Thyrostimulin although stable at room temperature for 3 weeks, should be stored desiccated below -18 degree C. Upon reconstitution GPHB5 should be stored at 4 degree C between 2-7 days and for future use below -18 degree C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
- 货期：
- 6-8周
- 纯度：
- Greater than 95.0% as determined by(a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
- 产品形式：
- The GPHB5 filtered (0.4 um) and lyophilized from 0.5 mg/ml in 0.05M Acetate buffer pH 4.
Filtered White lyophilized (freeze-dried) powder.
- 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: GPHB5 Human Recombinant produced in E Coli is a single, non-glycosylated, polypeptide chain containing 120 amino acids and having a total molecular mass of 13.34 kDa. The Thyrostimulin contains His tag which consists of 14 additional amino acids.The amino acid sequence of the recombinant human Thyrostimulin beta subunit is 100% homologous to the amino acid sequence of the human Thyrostimulin beta subunit without signal sequence. (N-terminal 24AA).Thyrostimulin is purified by proprietary chromatographic techniques.
Introduction: Human thyrostimulin ranks among the glycoprotein hormone family. These hormones consist of two subunits, the common alpha- and specific beta-subunits, which associate noncovalently to form a heterodimer. The alpha-subunit combines with four distinct beta-subunits giving rise to four biologically active hormones in human: FSH, LH, TSH, and CG. FSH, LH, and TSH, mainly expressed in the anterior pituitary, are essential for coordinated endocrine regulation in the hypothalamus- pituitary axis and show to activate specific G proteincoupled receptors in the thyroid (TSH receptor) and gonads (LH and FSH receptors), respectively. The heterodimeric glycoprotein hormones have only been identified in vertebrates and are highly conserved in organisms from primitive rayfin fish (Chondrostei) to human in both primary sequences and functional characteristics.Corticotroph-derived glycoprotein hormone (CGH), also referred to as thyrostimulin, is a noncovalent heterodimer of glycoprotein hormone alpha 2 (GPHA2) and glycoprotein hormone beta 5 (GPHB5).Recombinant A2/B5 heterodimeric glycoproteins activates human TSH receptors, but not LH and FSH receptors, and shows high affinity to TSH receptors in a radioligand receptor assay. The heterodimer also stimulates cAMP production and thymidine incorporation by cultured thyroid cells and increases serum thyroxine levels in TSH-suppressed rats in vivo. This new heterodimeric glycoprotein hormone was named as thyrostimulin based on its thyroid-stimulating activity. The expression of thyrostimulin in the anterior pituitary known to express TSH receptors suggested a paracrine mechanism.
