Latent TGF beta 1/TGFB1 Protein, Rat (HEK293, C-His)

Latent TGF beta 1 (latent TGFB1) is the inactive form of TGF-B1. Latent TGF beta 1 associates with the extracellular matrix (ECM) via LTBP. LTBPs are components of the ECM, so that the proteolytic cleavage of LTBP can lead to the release of latent TGF-beta 1 from the matrix. Besides, the proteolytic cleavage and liberation of active TGFB1 is performed by BMP-1, by a variety of matrix metalloproteinases (MMPs)^[1][3]. Latent TGF beta 1/TGFB1 Protein, Rat (HEK293, C-His) is the recombinant rat-derived Latent TGF beta 1/TGFB1 protein, expressed by HEK293 , with C-6*His labeled tag. The total length of Latent TGF beta 1/TGFB1 Protein, Rat (HEK293, C-His) is 361 a.a., with molecular weight of ~55 & 40 & 16 kDa, respectively.

TGF-B1 is known to be secreted in the inactive, latent form. And latent TGF beta 1 (latent TGFB1) is comprised of three distinct components: mature TGFB1 which is a disulphide-bonded dimer, the N-terminal remnant of theTGFB1 precursor and a novel type of protein denoted the latent TGFB1-binding protein (LTBP)^[2].
Although latent TGF beta 1 is converted into its biologically active form by various mechanisms, but all mechanisms involve dissociation of TGFB1 from LAP-B1 in the soluble SLC (small latent complex) and/or the ECM bound LLC (large latent complex). In addition, Proteolytic cleavage is the most prominent cellular mechanism of latent TGFB1 activation. Latent TGF beta 1 associates with the extracellular matrix (ECM) via LTBP. LTBPs are components of the ECM, so that the proteolytic cleavage of LTBP can lead to the release of latent TGF-beta 1 from the matrix. Besides, the proteolytic cleavage of LLC and liberation of active TGFB1 is performed by BMP-1, by a variety of matrix metalloproteinases (MMPs)^[1][3].

Measured by its ability to inhibit proliferation of HT-2 mouse T cells. The ED₅₀ for this effect is 0.003232-0.1047 ng/ml, corresponding to a specific activity is 9.551×10^6-3.094×10^8 units/mg.

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  Measured by its ability to inhibit proliferation of HT-2 mouse T cells. The ED₅₀ for this effect is 0.003232 ng/mL, corresponding to a specific activity is 3.094×10⁸ units/mg.

Rat

HEK293

C-6*His

P17246 (L30-S390)

59086  [NCBI]

LSTCKTIDMELVKRKRIEAIRGQILSKLRLASPPSQGEVPPGPLPEAVLALYNSTRDRVAGESADPEPEPEADYYAKEVTRVLMVDRNNAIYDKTKDITHSIYMFFNTSDIREAVPEPPLLSRAELRLQRFKSTVEQHVELYQKYSNNSWRYLGNRLLTPTDTPEWLSFDVTGVVRQWLNQGDGIQGFRFSAHCSCDSKDNVLHVEINGISPKRRGDLGTIHDMNRPFLLLMATPLERAQHLHSSRHRRALDTNYCFSSTEKNCCVRQLYIDFRKDLGWKWIHEPKGYHANFCLGPCPYIWSLDTQYSKVLALYNQHNPGASASPCCVPQALEPLPIVYYVGRKPKVEQLSNMIVRSCKCS

Approximately 55&40&16 kDa

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

Lyophilized powder.

Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.4.

<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.