3,3'-Diiodo-L-thyronine

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Chemical Structure| 4604-41-5 同义名 : 3,3'-T2; T2; L-3,3'-Diiodothyronine
CAS号 : 4604-41-5
货号 : A687592
分子式 : C15H13I2NO4
纯度 : 95%
分子量 : 525.08
MDL号 : MFCD01863378
存储条件:

Pure form Keep in dark place, inert atmosphere, store in freezer, under -20°C

In solvent -20°C:3-6个月-80°C:12个月

溶解度 : -
动物实验配方:
生物活性
描述 3,3'-Diiodo-L-thyronine (3,3'-T2) is an endogenous metabolite of thyroid hormone. 3,3'-Diiodo-L-thyronine significantly enhances COX activity. 3,3'-Diiodo-L-thyronine (3,3'-T2; 1 μM; 30 min) significantly enhances COX activity[4]. The 3-iodine of 3,3'-T2 occupies the same site as the 3'-iodine of T4, and the metabolite 3'-iodine occupies the water site observed in the T4 complex. The binding affinity of 3,3'-T2, which is 100-fold lower than that of T4, reflects the lack of the second pair of iodine atoms interacting in the channel[5]. In hypothyroid rats, we determined the effects of administration of different doses of 3,3',5-triiodo-L-thyronine (T3), 3,3'-diiodo-L-thyronine (3,3'-T2) and 3,5-diiodo-L-thyronine (3,5-T2) ("T2 isomers' refers specifically to these latter two isomers throughout this paper) on resting metabolism (RM) and on the oxidative capacity (measured as cytochrome oxidase activity) of tissues that are metabolically very active. The T2 isomers induced a dose-dependent calorigenic effect when injected I.P. into hypothyroid rats. The effect of T2 isomers on RM was paralleled by an increase in the oxidative capacity of tissues that are metabolically very active (liver, skeletal muscle, brown adipose tissue (BAT) and heart). The increases were between 33% (liver + 3,3'-T2) and 63% (muscle + 3,3'-T2) [6].
实验方案
1mg 5mg 10mg

1 mM

5 mM

10 mM

1.90mL

0.38mL

0.19mL

9.52mL

1.90mL

0.95mL

19.04mL

3.81mL

1.90mL

参考文献

[1]Lorenzini L, et al. Assay of Endogenous 3,5-diiodo-L-thyronine (3,5-T2) and 3,3'-diiodo-L-thyronine (3,3'-T2) in Human Serum: A Feasibility Study. Front Endocrinol (Lausanne). 2019 Feb 19;10:88.

[2]Lanni A, et al. Rapid stimulation in vitro of rat liver cytochrome oxidase activity by 3,5-diiodo-L-thyronine and by 3,3'-diiodo-L-thyronine. Mol Cell Endocrinol. 1994 Feb;99(1):89-94.

[3]Chen X, et al. Simultaneous quantification of T4, T3, rT3, 3,5-T2 and 3,3'-T2 in larval zebrafish (Danio rerio) as a model to study exposure to polychlorinated biphenyls. Biomed Chromatogr. 2018 Jun;32(6):e4185.

[4]Lanni A, Moreno M, Lombardi A, Goglia F. Rapid stimulation in vitro of rat liver cytochrome oxidase activity by 3,5-diiodo-L-thyronine and by 3,3'-diiodo-L-thyronine. Mol Cell Endocrinol. 1994 Feb;99(1):89-94

[5]Wojtczak A, Luft J, Cody V. Mechanism of molecular recognition. Structural aspects of 3,3'-diiodo-L-thyronine binding to human serum transthyretin. J Biol Chem. 1992 Jan 5;267(1):353-7

[6]Lanni A, Moreno M, Lombardi A, Goglia F. Calorigenic effect of diiodothyronines in the rat. J Physiol. 1996 Aug 1;494 ( Pt 3)(Pt 3):831-7