3,5,3'-triiodothyronine nuclear receptor in chick embryo. Properties and ontogeny of brain and lung receptors.

3,5,3'-triiodothyronine nuclear receptor in chick embryo. Properties and ontogeny of brain and lung receptors.
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鸡胚中的 3,5,3-三碘甲状腺原氨酸核受体。

DOI:
10.1210/endo-112-1-353
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发表时间:
1983
期刊:
影响因子:
4.8
通讯作者:
J. Lehoux
J. Lehoux
中科院分区:
医学2区
文献类型:
--
作者:
D. Bellabarba;S. Bédard;S. Fortier;J. Lehoux

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在鸡胚胎的整个大脑和肺中检测到核 T3 结合位点。溶解的受体在 Sephadex G-100 上的凝胶色谱显示相同的洗脱曲线(峰 1:T3 非特异性结合;峰 2:T3 与受体结合;峰 3:游离 T3)。两种受体的甘油密度梯度沉降系数均为4.0S,估计摩尔重量为60,000。对纯化的细胞核和溶解的受体进行的斯卡查德分析揭示了单一类别的结合位点。胚胎发生17天时的关联常数(Ka)和最大结合能力(MBC)值如下(平均值±SD):脑:纯化的细胞核,Ka = 0.64±0.1×109M-1,MBC±1.44fmol/μgDNA;可溶性受体,Ka = 1.16 ±0.1 × 109 M-1,MBC = 1.95 ± 0.08 fmol/μg DNA;肺:纯化的细胞核,Ka = 0.77 ± 0.1 ± 109 M-1 MBC = 2.72 fmol/μg DNA;溶解的受体,Ka = 2.02 × 109 M-1,MBC = 1.86 ± 0.1 fmol/μg DNA。在胚胎发生的不同日期进行的系列研究...
Nuclear T3 binding sites were detected in the whole brain and lung of chick embryos. Gel chromatography on Sephadex G-100 of the solubilized receptors showed an identical elution profile (peak 1: T3 nonspecifically bound; peak 2: T3 bound to the receptor; peak 3: free T3). The sedimentation coefficient on glycerol density gradient was 4.0S for both receptors, and the estimated mol wt is 60,000. Scatchard analysis performed with purified nuclei and the solubilized receptors revealed a single class of binding sites. The values of the association constants (Ka) and the maximal binding capacities (MBC) at 17 days of embryogenesis were as follows (mean ± SD): brain: purified nuclei, Ka = 0.64 ± 0.1 × 109 M-1, MBC ± 1.44 fmol/μg DNA; solubilized receptor, Ka = 1.16 ±0.1 × 109 M-1, MBC = 1.95 ± 0.08 fmol/μg DNA; lung: purified nuclei, Ka = 0.77 ± 0.1 ± 109 M-1 MBC = 2.72 fmol/μg DNA; solubilized receptor, Ka = 2.02 × 109 M-1, MBC = 1.86 ± 0.1 fmol/μg DNA. Serial studies performed at different days of embryogenes...
DOI: --
发表时间: 1981
期刊: The Journal of biological chemistry
影响因子: --
作者:
Seelig,S;Schwartz,HL;Oppenheimer,JH
通讯作者: Oppenheimer,JH
兔肺核 3,5,3-三碘甲状腺原氨酸受体:特征和发育变化。
DOI: 10.1210/endo-111-2-542
发表时间: 1982
期刊: Endocrinology
影响因子: 4.8
作者:
Gonzales,LW;Ballard,PL
通讯作者: Ballard,PL