Synthesis and biological properties of ovine corticotropin-releasing factor (CRF).

Synthesis and biological properties of ovine corticotropin-releasing factor (CRF).
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绵羊促肾上腺皮质激素释放因子(CRF)的合成及生物学特性。

DOI:
10.1016/0024-3205(82)90327-7
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发表时间:
1982
期刊:
影响因子:
6.1
通讯作者:
Schally,AV
Schally,AV
中科院分区:
医学2区
文献类型:
--
作者:
Sueiras-Diaz,J;Coy,DH;Vigh,S;Redding,TW;Huang,WY;Torres-Aleman,I;Schally,AV

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将新近发现的绵羊促肾上腺皮质激素释放因子(CRF)的41个残基序列组装在苯羟胺树脂载体上。去保护和从树脂上的裂解是通过HF处理完成的。粗肽经凝胶过滤、反相、中压、高效液相色谱分离纯化。除了通常的标准外,以7%的得率获得的最终材料的均质性通过高效液相色谱和氨基酸分析的溴化氰裂解和胰酶消化片段的分离和检查来评估。合成的41个氨基酸的促肾上腺皮质激素释放肽(CRF)在三个体外系统:大鼠离体腺垂体区、分散的垂体细胞单层培养和柱上灌流的垂体细胞系,其反应与CRF在0.05-125 ng/ml范围内的对数剂量有关。数据表明,合成材料具有化学纯度和较高的生物活性。
The 41-residue sequence of recently identified ovine corticotropin-releasing factor (CRF) was assembled on a benzhydrylamine resin support. Deprotection and cleavage from the resin were accomplished by HF treatment. The crude peptide was purified by gel filtration and reverse-phase, medium pressure, followed by high-performance liquid chromatography (HPLC). In addition to the usual criteria, the homogeneity of the final material, obtained in 7% yield, was assessed by the isolation and examination of cyanogen bromide cleavage and tryptic digestion fragments by HPLC and amino acid analysis. The synthetic 41 amino acid CRF stimulated the release of corticotropin (ACTH) in three in vitro systems: isolated rat pituitary quarters, monolayer cultures of dispersed pituitary cells, and superfused pituitary cells on a column, the responses being related to the log-dose of CRF in the range of 0.05–125 ng/ml. The synthetic peptide also augmented in vivo release of ACTH in rats pretreated with chlorpromazine, morphine, and Nembutal, as assessed by the measurement of serum corticosterone. The data indicates chemical purity and high biological activity of synthetic material.
DOI: 10.1111/j.1399-3011.1980.tb02584.x
发表时间: 2009
期刊: International journal of peptide and protein research
影响因子: --
作者:
C. Meyers;D. Coy
通讯作者: D. Coy
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发表时间: 1977
期刊: Endocrinology
影响因子: 4.8
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影响因子: 4.8
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通讯作者: Norman M Kaplan