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鸟嘌呤核苷酸对大鼠大脑皮层中神经肽Y(NPY)结合的调节作用

Regulation of neuropeptide Y (NPY) binding by guanine nucleotides in the rat cerebral cortex.

作者信息

Undén A, Bartfai T

出版信息

FEBS Lett. 1984 Nov 5;177(1):125-8. doi: 10.1016/0014-5793(84)80995-3.

DOI:10.1016/0014-5793(84)80995-3
PMID:6548713
Abstract

In the presence of GTP, GDP, GMPP(NH)P, GMPP(CH2)P, GMPP(S)P but not in the presence of GMP, cGMP or ATP, the high affinity binding of neuropeptide Y (NPY) was reduced in a dose-dependent manner. GTP (0.1 mM) diminished the maximal binding capacity for 125I-labelled NPY by 40% without any change in the equilibrium dissociation constant of the receptor 125I-labelled NPY complex.

摘要

在存在鸟苷三磷酸(GTP)、鸟苷二磷酸(GDP)、5'-鸟苷亚甲基二磷酸(GMPP(NH)P)、5'-鸟苷亚乙基二磷酸(GMPP(CH2)P)、5'-鸟苷亚硫酰二磷酸(GMPP(S)P)的情况下,但在不存在鸟苷单磷酸(GMP)、环鸟苷单磷酸(cGMP)或三磷酸腺苷(ATP)时,神经肽Y(NPY)的高亲和力结合以剂量依赖性方式降低。GTP(0.1 mM)使125I标记的NPY的最大结合容量降低了40%,而受体125I标记的NPY复合物的平衡解离常数没有任何变化。

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Regulation of neuropeptide Y (NPY) binding by guanine nucleotides in the rat cerebral cortex.鸟嘌呤核苷酸对大鼠大脑皮层中神经肽Y(NPY)结合的调节作用
FEBS Lett. 1984 Nov 5;177(1):125-8. doi: 10.1016/0014-5793(84)80995-3.
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