An insertion in the human thyrotropin receptor critical for high affinity hormone binding.
An insertion in the human thyrotropin receptor critical for high affinity hormone binding.
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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
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发表时间:
1990
期刊:
影响因子:
--
通讯作者:
Rapoport,B
中科院分区:
文献类型:
--
作者:
Wadsworth,HL;Chazenbalk,GD;Nagayama,Y;Russo,D;Rapoport,B
Thyrotropin (TSH), luteinizing hormone (LH), and chorionic gonadotropin (CG) are structurally related glycoprotein hormones, which bind to receptors that share a high degree of sequence similarity. However, comparison of the primary amino acid sequences of the TSH and LH-CG receptors reveals two unique insertions of 8 and 50 amino acids in the extracellular domain of the TSH receptor. The functional significance of these insertions were determined by site-directed mutagenesis. Deletion of the 50-amino acid tract (residues 317 to 366) had no effect on TSH binding or on TSH and thyroid-stimulating immunoglobulin (TSI) biological activities. In contrast, either deletion or substitution of the eight-amino acid region (residues 38 to 45) abolished these activities. This eight-amino acid tract near the amino terminus of the TSH receptor appears to be an important site of interaction for both TSH and TSI.
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影响因子:
56.9
作者:
BOWIE, JU;REIDHAAROLSON, JF;SAUER, RT
通讯作者:
SAUER, RT
影响因子:
--
作者:
SPRENGEL, R;BRAUN, T;SEEBURG, PH
通讯作者:
SEEBURG, PH
影响因子:
56.9
作者:
MCFARLAND, KC;SPRENGEL, R;SEEBURG, PH
通讯作者:
SEEBURG, PH
影响因子:
56.9
作者:
PARMENTIER, M;LIBERT, F;VASSART, G
通讯作者:
VASSART, G