Biosynthesis, Glycosylation, and Secretion of Rat Luteinizing Hormone α- and β-Subunits: Differential Effects of Orchiectomy and Gonadotropin-Releasing Hormone*

Biosynthesis, Glycosylation, and Secretion of Rat Luteinizing Hormone α- and β-Subunits: Differential Effects of Orchiectomy and Gonadotropin-Releasing Hormone*
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大鼠黄体生成素 α 和 β 亚基的生物合成、糖基化和分泌:睾丸切除术和促性腺激素释放激素的不同作用*

DOI:
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发表时间:
1986
期刊:
影响因子:
--
通讯作者:
B. Weintraub
B. Weintraub
中科院分区:
--
文献类型:
--
作者:
D. L. Vogel;J. Magner;R. Sherins;B. Weintraub

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我们研究了睾丸切除和完整对照成年雄性大鼠垂体区 LH 亚基的从头生物合成和分泌及其受 GftRH 的调节。在存在或不存在 10−8 M GnRH 的情况下,用 [35S] 胱氨酸 ([35S]Cys)、[35S] 蛋氨酸或 [3H] 葡萄糖胺 ([3H]GlcN) 标记后,用 LHβ 抗血清对组织裂解物和培养基进行免疫沉淀,然后用 LHα(通过 ariti-TSHβ 免疫沉淀去除 TSH 后)和产物通过十二烷基硫酸钠梯度凝胶电泳进行分析。在用[35S]硫硫氨酸进行12分钟脉冲标记期间,三种形式的免疫反应性α被标记为21,000、18,000和12,000摩尔重量。经过 30 分钟的过量未标记蛋氨酸追踪后,12,000 形式从总放射性的 10% 下降到 3%,而 21,000 形式从 57% 增加到 69%,这意味着前体-产物关系。睾丸切除术和 GnRH 对 [35S]Cys 或 [3H]GlcN 掺入细胞内或分泌的总蛋白没有任何影响。
We have studied the de novo biosynthesis and secretion of LH subunits in pituitary quarters from orchiectomized and intact control adult male rats and their regulation by GftRH. After labeling with [35S]cystine ([35S]Cys), [35S]methionine, or [3H]glucosamine ([3H]GlcN) in the presence or absence of 10−8 M GnRH, tissue lysates arid media were immunoprecipitated with antisera to LHβ, then LHα (after removal of TSH by immunoprecipitatiori with ariti-TSHβ), and the products were analyzed by sodium dodecyl sulfate gradient gel electrophoresis. During a 12-min pulse labeling with [35S]rriethionine, three forms of immunoreactive a were labeled at 21,000, 18,000, and 12,000 mol wt. After a 30-min chase with excess unlabeled methionine, the 12,000 form decreased from 10% to 3% of total radioactivity, while the 21,000 form increased from 57% to 69%, implying a precursor-product relationship. Neither orchiectomy nor GnRH had any effect on [35S]Cys or [3H]GlcN incorporation into intracellular or secreted total protei...
DOI: --
发表时间: 1982
期刊: The Journal of biological chemistry
影响因子: --
作者:
Godine,JE;Chin,WW;Habener,JF
通讯作者: Habener,JF
黄体生成素释放激素激动剂降低人体黄体生成素的生物活性并改变其色谱行为。
DOI: 10.1172/jci111200
发表时间: 1984
期刊: The Journal of clinical investigation
影响因子: --
作者:
Evans,RM;Doelle,GC;Lindner,J;Bradley,V;Rabin,D
通讯作者: Rabin,D
正常和甲状腺功能减退大鼠垂体中促甲状腺素(TSH)释放激素对 TSH 亚基生物合成和糖基化的调节。
DOI: 10.1210/endo-116-5-1968
发表时间: 1985
期刊: Endocrinology
影响因子: 4.8
作者:
Taylor,T;Weintraub,BD
通讯作者: Weintraub,BD
DOI: 10.1016/0006-291x(84)91234-8
发表时间: 1984
影响因子: 3.1
作者:
Landefeld,T;Kepa,J
通讯作者: Kepa,J