
Cyclic guanosine monophosphate - Wikipedia
Cyclic guanosine monophosphate (cGMP) is a cyclic nucleotide derived from guanosine triphosphate (GTP). cGMP acts as a second messenger much like cyclic AMP. Its most likely mechanism of action is activation of intracellular protein kinases in response to the binding of membrane -impermeable peptide hormones to the external cell surface. [1]
cAMP、cGMP 信号转导通路-丁香实验
2012年10月25日 · 嗅觉信号传递过程的离子通道以及心脏窦房结起搏细胞的离子通道有环核苷酸结合位点,能直接与cAMP结合并受其调控,称为环化核苷酸门控阳离子通道(cyclic nucleotide-gated cation channel,CNG)。 3. 鸟苷酸交换因子(guanine nucleo-tide exchange factors,GEF)也是cAMP结合蛋白,它们含cAMP结合位点,受cAMP调控,称为cAMP直接激活的交换蛋白(exchange protein directly activated by cAMP,Epac)或cAMP-GEF。 1. 细胞 …
cGMP(化学物质)_百度百科
英文全称cyclic guanosine monophosphate,中文名环磷酸鸟苷,cGMP是一种具有细胞内信息传递作用的第二信使(second messenger),可被G蛋白偶联受体(G-protein linked receptor)激活的蛋白激酶(protein kinases )活化,进而将胞外信号转导至细胞核。
激素的作用机制(三) - 知乎
另一种常见的第二信使是cGMP,由鸟苷酸环化酶(guanylate cyclase,GC)催化合成。 鸟苷酸环化酶有质膜结合GC和可溶性GC(sGC)两种,前者又称颗粒型GC(pGC),属于酶联受体(受体鸟苷酸环化酶);后者是一氧化氮…
Single-cell analysis identifies the CNP/GC-B/cGMP axis as ... - Nature
2025年1月15日 · Vascular smooth muscle cells (VSMCs) can generate cGMP via three ligand-activated guanylyl cyclases, the NO-sensitive guanylyl cyclase, the atrial natriuretic peptide (ANP)-activated GC-A, and...
cGMP-PKG信号通路signaling pathway-武汉华美生物
cGMP-PKG (cyclic guanosine monophosphate-protein kinase G)信号通路是细胞内的一种重要信号转导途径。 它通过cGMP作为第二信使,调节PKG的活性,从而影响靶蛋白,参与多种生理和病理过程。
Molecular Physiology of Membrane Guanylyl Cyclase Receptors
The mammalian genome encodes seven transmembrane guanylyl cyclases (GCs), GC-A to GC-G, which mainly modulate submembrane cGMP microdomains. These GCs share a unique topology comprising an extracellular domain, a short transmembrane region, and an intracellular COOH-terminal catalytic (cGMP synthesizing) region.
Biochemistry, Cyclic GMP - StatPearls - NCBI Bookshelf
2022年9月26日 · Guanosine 3’,5’-cyclic monophosphate (cyclic GMP or cGMP) is a second messenger molecule that modulates various downstream effects, including vasodilation, retinal phototransduction, calcium homeostasis, and neurotransmission. cGMP mediates these effects via activation and alteration of specific ion channels, association with cGMP-dependent ...
Cardiac cGMP Regulation and Therapeutic Applications
2024年12月11日 · Here, we review the generation and regulation of cGMP by PDEs and cyclases, focusing mainly on their role in cardiac physiology and pathophysiology. Current therapeutic uses of cGMP modulation and ongoing trials testing new potential applications are …
简述cGMP-PKG通路。阐述G蛋白介导的途径。胰岛素信号传导途 …
2022年9月26日 · 动物细胞 中还存在另一类与cAMP起拮抗作用的信使,称环磷酸鸟苷酸(cGMP),由鸟苷酸环化酶(GC)分解GTP产生,但其含量还不到cAMP的1/10。 GC多为膜中可溶性蛋白,与受体分开存在。 已知细胞中的cGMP和cAMP浓度和作用相对抗,如当胞内cAMP水平升高时, 糖原 分解成 葡萄糖;而cGMP升高则促葡萄糖合成糖原。 cAMP升高,促细胞基因表达合成特异蛋白质,使细胞分化;cGMP升高则加快 DNA复制,细胞分裂增殖。 但细胞 …