TGF beta 1/TGFB1 蛋白, Rat/Mouse (HEK293)

TGF beta 1/TGFB1 Protein is initially identified as a growth factor that induces the growth of rodent fibroblasts. TGF beta 1/TGFB1 Protein inhibits the cell cycle in the G1 phase. TGF beta 1/TGFB1 is an endogenous factor controlling apoptosis in normal and pathological tissues. TGF beta 1/TGFB1 Protein, Mouse (HEK293) is a recombinant protein (A279-S390) produced by HEK293 cells^[1][2].

TGF beta 1/TGFB1 蛋白（转化生长因子 beta 1）是一种多功能细胞因子，几乎由所有细胞合成。TGF beta 1/TGFB1 蛋白具有很强的与 TGFbRII^[3] 结合的能力。
不同物种的TGFb1蛋白的氨基酸序列非常稳定，由此得出结论：TGFb在进化过程中仅发生了轻微改变，无论在人类还是在动物中，其功能都是相似的。TGFβ1/TGFB1 蛋白作为无活性肽分泌，形成“潜在复合物”的一部分，该复合物由非共价结合至其潜伏相关肽 (LAP) 的成熟 TGFB1 二聚体组成，并通过 LAP 与潜在的 TGFB 结合蛋白质（LTBP）。激活的 TGF beta 1/TGFB1 蛋白与普遍表达的细胞表面 TGFB1 I 型受体 (TGFBRI) 和 II 型受体 (TGFBRII) 结合，它们是跨膜丝氨酸/苏氨酸激酶^[4]。
TGF beta 1/TGFB1 蛋白调节细胞增殖、生长、分化和细胞运动。TGFb1具有免疫调节作用。TGF beta 1/TGFB1 蛋白具有促纤维化作用。TGF beta 1/TGFB1 蛋白作用可以是局部的和全身的。TGF beta 1/TGFB1 蛋白在发育、纤维化和癌症中发挥驱动作用^[4]。

TGFB1 (1-1 ng/ml, 6 min) induces phosphorylation of SMAD2 and SMAD3 in CLENDO cells^[5].
TGFB1 (1 ng/mL) significantly reduced both basal and fetal-calf-serum-stimulated DNA synthesis, without reducing cell viability^[5].
TGFB1 (1 ng/mL) decreases CLENDO cell migration and causes loss of VE-cadherin from cellular junctions^[5].

TGF-β1 (1 ng/ μL, 2 μL, i.c.v.) significantly blocks the antidepressant effects of (R)-ketamine in CSDS susceptible mice^[6].

1. Measured by its ability to inhibit IL-4-dependent proliferation of TF-1 human erythroleukemic cells and the ED₅₀ is 5-25 pg/mL.
2. Measured by its ability to inhibit cell proliferation of Mv-1-Lu mink lung epithelial cells. The ED₅₀ for this effect is <0.8 ng/mL.

• 
  Measured by its ability to inhibit cell proliferation of Mv.1.lu mink lung epithelial cells. The ED₅₀ for this effect is 0.094 ng/mL, corresponding to a specific activity is 1.06×10⁷ units/mg.

Rat; Mouse

HEK293

Tag Free

P04202/P17246 (A279-S390)

21803  [NCBI]/59086

ALDTNYCFSSTEKNCCVRQLYIDFRKDLGWKWIHEPKGYHANFCLGPCPYIWSLDTQYSKVLALYNQHNPGASASPCCVPQALEPLPIVYYVGRKPKVEQLSNMIVRSCKCS

Approximately 13 kDa

• 
  Greater than 95% as determined by reducing SDS-PAGE.

无菌粉末

Lyophilized from a 0.22 μm filtered solution of 4mM HCL.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.

• [1]. K. Miyazono, et al. A role of the latent TGF-beta 1-binding protein in the assembly and secretion of TGF-beta 1. The EMBO Journal (1991)10:1091-1101.

  [2]. M Selvakumaran, et al. The novel primary response gene MyD118 and the proto-oncogenes myb, myc, and bcl-2 modulate transforming growth factor beta 1-induced apoptosis of myeloid leukemia cells. Mol Cell Biol. 1994 Apr;14(4):2352-60.  [Content Brief]

  [3]. Chambaz E.M., et al. Transforming Growth Factor-βs: A Multifunctional Cytokine Family. Implication in the Regulation of Adrenocortical Cell Endocrine Functions. 1991.

  [4]. Dulce Maroni, et al. TGFB1 disrupts the angiogenic potential of microvascular endothelial cells of the corpus luteum. Cell Sci. 2011 Jul 15;124(Pt 14):2501-10.  [Content Brief]

  [5]. Justin Rustenhoven, et al. TGF-beta1 regulates human brain pericyte inflammatory processes involved in neurovasculature function. Justin Rustenhoven. 2016 Feb 11;13:37.  [Content Brief]

  [6]. Kai Zhang, et al. Essential role of microglial transforming growth factor-β1 in antidepressant actions of (R)-ketamine and the novel antidepressant TGF-β1. Transl Psychiatry. 2020 Jan 27;10(1):32.  [Content Brief]