TGF beta 1/TGFB1 Protein, 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 Protein (transforming growth factor beta 1) is a multifunctional cytokine, which is synthesized by almost all cells. TGF beta 1/TGFB1 Protein has a high ability to bind with TGFbRII^[3].
The sequence of amino acids in TGFb1 proteins from different species is very stable, which leads to the conclusion that in the process of evolution, TGFb has been only slightly altered, and that both in humans and in animals, its function is similar. TGF beta 1/TGFB1 Protein is secreted as an inactive peptide, forming part of a ‘latent complex’ consisting of a mature TGFB1 dimer non-covalently bound to its latency-associated peptide (LAP) and, via LAP, to latent TGFB-binding proteins (LTBPs). Activated TGF beta 1/TGFB1 Protein binds to ubiquitously expressed cell-surface TGFB1 type I receptors (TGFBRI) and type II receptors (TGFBRII), which are transmembrane serine/threonine kinases^[4].
TGF beta 1/TGFB1 Protein regulates cell proliferation, growth, differentiation and cells movement. TGFb1 has immunomodulatory effects. TGF beta 1/TGFB1 Protein has profibrogenic effects. TGF beta 1/TGFB1 Protein action can be local and systemic. TGF beta 1/TGFB1 Protein plays a driving role in development, fibrosis and cancer^[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.

Lyophilized powder

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]