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人卵泡促性腺激素释放肽(hF-GRP)为一只含14个氨基酸的多肽类激素,我们已经用2D-NMR技术测定了它的溶液构象,本文又用STM技术观察了hF-GRP单层铺展时的分子图象,测得其分子大小约为2.4nm,并用2D-NMR结果较好地解释了所得的图象。 相似文献
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Since the discovery of hF-GRP, several analogs have been synthesized in order to see their effects on the gonadotropin releasing activity, either as agonists or antagonists to this peptide. TF14 is one of these analogs, whose 14th position in the primary sequence is Phe instead of Asn in hF-GRP, while its activity is doubled. 2D-NMR (TOCSY, ROESY) was used to determine the conformation of TF14 in solution. Compared with hF-GRP, the whole peptide is in a non-typical more extended conformation, which may give some due to the relation between structure and function of these two peptides. 相似文献
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人卵泡促性腺激素释放肽(hF-GRP)为一只含14个氨基酸的多肽类激素,我们已经用2D—NMR技术测定了它的溶液构象,本文又用STM技术观察了hF—GRP单层铺展时的分子图象,测得其分子大小的为2.4nm并用2D—NMR结果较好地解释了所得的图象。 相似文献
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