Extracellular domain chimeras of the TSH and LH/CG receptors reveal the mid-region (amino acids 171-260) to play a vital role in high affinity TSH binding.

Extracellular domain chimeras of the TSH and LH/CG receptors reveal the mid-region (amino acids 171-260) to play a vital role in high affinity TSH binding.
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TSH 和 LH/CG 受体的胞外域嵌合体揭示了中间区域(氨基酸 171-260)在高亲和力 TSH 结合中发挥着至关重要的作用。

DOI:
10.1016/s0006-291x(05)80906-4
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发表时间:
1990
影响因子:
3.1
通讯作者:
Rapoport,B
Rapoport,B
中科院分区:
生物学4区
文献类型:
--
作者:
Nagayama,Y;Russo,D;Chazenbalk,GD;Wadsworth,HL;Rapoport,B

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我们构建了一系列TSH-LH/CG受体嵌合体的TSH受体的胞外结构域的相应区域的LH/CG受体的胞外结构域的相对较小的区域的同源取代。构建体在中国仓鼠卵巢细胞中稳定表达。在五种嵌合受体中,只有TSH-LHR-14(包含TSH受体细胞外成分的中区结构域C(氨基酸残基171-260))表现出相对高亲和力的TSH结合。与这种TSH结合一致,嵌合体TSH-LHR-14是唯一一个在细胞内cAMP产生方面表现出对TSH刺激的功能反应的嵌合体。这些数据表明,结构域C在TSH受体功能中起着至关重要的作用。
We constructed a series of TSH-LH/CG receptor chimeras by homologous substitution of relatively small regions of the TSH receptor extracellular domain for the corresponding region of the extracellular domain of the LH/CG receptor. Constructs were stably expressed in Chinese hamster ovary cells. Of the five chimeric receptors, only TSH-LHR-14, which contains mid-region domain C (amino acid residues 171–260) of the extracellular component of the TSH receptor, exhibited TSH binding of relatively high affinity. Consistent with this TSH binding, chimera TSH-LHR-14 was the only one that demonstrated a functional response to TSH stimulation in terms of intracellular cAMP generation. These data indicate that domain C plays a vital role in TSH receptor function.
重组人促甲状腺素受体在非甲状腺真核细胞中的功能表达提供了证据,证明对促甲状腺素刺激的同源脱敏需要细胞特异性因子。
DOI: 10.1210/endo-127-3-1240
发表时间: 1990
期刊: Endocrinology
影响因子: 4.8
作者:
Chazenbalk,GD;Nagayama,Y;Kaufman,KD;Rapoport,B
通讯作者: Rapoport,B
DOI: 10.1210/mend-4-4-525
发表时间: 1990-04-01
影响因子: --
作者:
SPRENGEL, R;BRAUN, T;SEEBURG, PH
通讯作者: SEEBURG, PH
DOI: 10.1126/science.2502842
发表时间: 1989-08-04
期刊: SCIENCE
影响因子: 56.9
作者:
MCFARLAND, KC;SPRENGEL, R;SEEBURG, PH
通讯作者: SEEBURG, PH
人促甲状腺素受体中的插入对于高亲和力激素结合至关重要。
DOI: 10.1126/science.2169649
发表时间: 1990
期刊: Science (New York, N.Y.)
影响因子: --
作者:
Wadsworth,HL;Chazenbalk,GD;Nagayama,Y;Russo,D;Rapoport,B
通讯作者: Rapoport,B
DOI: 10.1126/science.2556796
发表时间: 1989-12-22
期刊: SCIENCE
影响因子: 56.9
作者:
PARMENTIER, M;LIBERT, F;VASSART, G
通讯作者: VASSART, G