Characterization of a 40 residue peptide from a human pancreatic tumor with growth hormone releasing activity.

Characterization of a 40 residue peptide from a human pancreatic tumor with growth hormone releasing activity.
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来自人胰腺肿瘤的具有生长激素释放活性的 40 残基肽的表征。

DOI:
10.1016/0006-291x(82)91578-9
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发表时间:
1982
影响因子:
3.1
通讯作者:
Guillemin,R
Guillemin,R
中科院分区:
生物学4区
文献类型:
--
作者:
Esch,FS;Böhlen,P;Ling,NC;Brazeau,PE;Wehrenberg,WB;Thorner,MO;Cronin,MJ;Guillemin,R

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通过对完整肽及其羧基末端溴化氰消化片段的气相序列分析,对从引起肢端肥大症的人胰腺肿瘤中分离的具有高内源性生长激素释放活性的40个氨基酸的肽进行了结构表征。天然肽和合成复制品的高压液相色谱显示,该分子具有游离酸而不是酰胺化羧基末端。使用1.8纳摩尔材料,将肽的结构确定为:Tyr-Ala-Asp-Ala-Ile-Phe-Thr-Asn-Ser-Tyr-Arg-Lys- Val-Leu-Gly-Gln-Leu-Ser-Ala-Arg-Lys-Leu-Leu-Gln-Asp-Ile-Met-Ser-Arg-Gln-Gln-Gly- Glu-Ser-Asn-Gln-Glu-Arg-Gly-Ala-OH。这种材料与以前的特点是一个较大的生长激素释放肽的片段从不同的人类肿瘤分离的结构身份进行了讨论。
Structural characterization of a 40 amino acid peptide with high intrinsic growth hormone releasing activity isolated from a human pancreatic tumor which had caused acromegaly was accomplished by gas phase sequence analyses of the intact peptide and its carboxy terminal cyanogen bromide digestion fragment. High pressure liquid chromatography of the native peptide and synthetic replicates showed that the molecule possessed a free acid rather than an amidated carboxy terminus. The structure of the peptide was established as: Tyr-Ala-Asp-Ala-Ile-Phe-Thr-Asn-Ser-Tyr-Arg-Lys- Val-Leu-Gly-Gln-Leu-Ser-Ala-Arg-Lys-Leu-Leu-Gln-Asp-Ile-Met-Ser-Arg-Gln-Gln-Gly- Glu-Ser-Asn-Gln-Glu-Arg-Gly-Ala-OH using 1.8 nmoles of material. The structural identity of this material with a previously characterized fragment of a larger growth hormone releasing peptide isolated from a different human tumor is discussed.
DOI: 10.1016/0003-2697(79)90366-x
发表时间: 1979-01-01
影响因子: 2.9
作者:
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通讯作者: MELLET, M
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DOI: --
发表时间: 1978
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影响因子: --
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发表时间: 1975
影响因子: 2.9
作者:
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DOI: 10.1016/0006-291x(80)91564-8
发表时间: 1980
影响因子: 3.1
作者:
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通讯作者: Guillemin,R