Requirement of Tyrosine Residues 333 and 338 of the Growth Hormone (GH) Receptor for Selected GH-stimulated Function (*)

Requirement of Tyrosine Residues 333 and 338 of the Growth Hormone (GH) Receptor for Selected GH-stimulated Function (*)
复制标题

生长激素 (GH) 受体的酪氨酸残基 333 和 338 需要 GH 刺激功能 (*)

DOI:
--
复制
发表时间:
1995
影响因子:
4.8
通讯作者:
N. Billestrup
N. Billestrup
中科院分区:
生物学2区
文献类型:
--
作者:
P. Lobie;G. Allevato;J. Nielsen;G. Norstedt;N. Billestrup

文献摘要

参考文献

被引文献

相似文献

我们研究了生长激素(GH)受体的酪氨酸残基333和338在细胞对GH的反应中的作用。以中国仓鼠卵巢细胞(CHO-GHRY333F,Y338F)为研究对象,通过基因转染法获得稳定表达苯丙氨酸受体(CHO-GHRY333F,Y338F)的细胞克隆。与野生型受体相比,Y333F、Y338F突变体具有正常的高亲和力配体结合、激素内化和配体诱导的受体下调。在表达相似野生型和Y333F、Y338F受体数目的CHO克隆中,丝裂原相关蛋白激酶的GH活性也相似。然而,GH调节的两个细胞事件(脂肪生成和蛋白质合成)在酪氨酸替代受体中缺失。相反,Y333F、Y338F突变不影响GH的转录调控(由SPI2.1基因的GH响应区驱动的氯霉素乙酰转移酶基因表达)。因此,我们提供了第一个实验证据,证明生长激素受体的特定酪氨酸残基是选定的细胞对生长激素的反应所必需的。
We have examined the involvement of tyrosine residues 333 and 338 of the growth hormone (GH) receptor in the cellular response to GH. Stable Chinese hamster ovary (CHO) cell clones expressing a receptor with tyrosine residues at position 333 and 338 of the receptor substituted for phenylalanine (CHO-GHRY333F, Y338F) were generated by cDNA transfection. Compared with the wild type receptor the Y333F,Y338F mutant possessed normal high affinity ligand binding, hormone internalization, and ligand-induced receptor down-regulation. GH activation of mitogen-associated protein kinase was also similar in CHO clones expressing similar wild type and Y333F,Y338F receptor number. However, two GH-regulated cellular events (lipogenesis, and protein synthesis) were deficient in the tyrosine substituted receptor. In contrast, transcriptional regulation by GH (as evidenced by chloramphenicol acetyltransferase cDNA expression driven by the GH-responsive region of the SPI 2.1 gene) was not affected by Y333F,Y338F substitution. Thus we provide the first experimental evidence that specific tyrosine residues of the GH receptor are required for selected cellular responses to GH.
克隆的肝脏生长激素受体与酪氨酸激酶相关的证据。
DOI: --
发表时间: 1992
期刊: The Journal of biological chemistry
影响因子: --
作者:
Wang,X;Uhler,MD;Billestrup,N;Norstedt,G;Talamantes,F;Nielsen,JH;Carter-Su,C
通讯作者: Carter-Su,C
由催乳素受体的近膜细胞质区域介导的生长信号传导和 JAK2 关联。
DOI: --
发表时间: 1994
期刊: The Journal of biological chemistry
影响因子: --
作者:
DaSilva,L;Howard,OM;Rui,H;Kirken,RA;Farrar,WL
通讯作者: Farrar,WL
DOI: 10.1126/science.8272873
发表时间: 1994-01-07
期刊: SCIENCE
影响因子: 56.9
作者:
STAHL, N;BOULTON, TG;YANCOPOULOS, GD
通讯作者: YANCOPOULOS, GD
生长激素促进小鼠 3T3-F442A 成纤维细胞和脂肪细胞中生长激素受体的酪氨酰磷酸化。
DOI: 10.1021/bi00401a049
发表时间: 1988
期刊: Biochemistry
影响因子: 2.9
作者:
Foster,CM;Shafer,JA;Rozsa,FW;Wang,XY;Lewis,SD;Renken,DA;Natale,JE;Schwartz,J;Carter-Su,C
通讯作者: Carter-Su,C
生长激素刺激 3T3-F442A 成纤维细胞中 MAP 激酶活性。
DOI: --
发表时间: 1992
期刊: The Journal of biological chemistry
影响因子: --
作者:
Campbell,GS;Pang,L;Miyasaka,T;Saltiel,AR;Carter-Su,C
通讯作者: Carter-Su,C