膜转运体与离子通道:跨膜物质流动如何驱动细胞信号与功能调控
细胞信号并不只来自受体激活、蛋白磷酸化和转录因子入核。许多信号的起点更早,发生在细胞膜或细胞器膜两侧的物质分布变化中。Na⁺、K⁺、Ca²⁺、Cl⁻、H⁺、葡萄糖、氨基酸、乳酸、胆汁酸、神经递质和药物等分子,不能随意穿过脂质双层。细胞必须依赖离子通道、转运体和 ATP(adenosine ...
用于检测、定量和定位抗原与抗体的技术——ELISA、免疫印迹、免疫组化与流式细胞术。以下是我们知识库中标注该主题的实验方案、常见问题与技术文章。
细胞信号并不只来自受体激活、蛋白磷酸化和转录因子入核。许多信号的起点更早,发生在细胞膜或细胞器膜两侧的物质分布变化中。Na⁺、K⁺、Ca²⁺、Cl⁻、H⁺、葡萄糖、氨基酸、乳酸、胆汁酸、神经递质和药物等分子,不能随意穿过脂质双层。细胞必须依赖离子通道、转运体和 ATP(adenosine ...
Cellular signaling does not arise only from receptor activation, protein phosphorylation, or the nuclear translocation of transcription factors. Many signals begin even earlier, with changes in the distribution of substances across the plasma membrane or organelle membranes. Molecules such as ...
嘌呤(purine):由嘧啶环与咪唑环稠合形成的含氮芳香杂环母核,分子式 C₅H₄N₄。嘌呤母核是多类关键生物分子的结构基础:从核酸中的嘌呤碱基(如腺嘌呤、鸟嘌呤),到核苷/核苷酸(如 ...
Purine (purine): An aromatic nitrogen-containing heterocycle formed by the fusion of a pyrimidine ring and an imidazole ring, with the molecular formula C₅H₄N₄. The purine core underpins many key biomolecules: from purine bases in nucleic acids (e.g., adenine, guanine), to ...
Adenosine triphosphate (ATP) is the central molecule of cellular energy metabolism, and changes in its level directly reflect cell viability, mitochondrial function and metabolic state. ATP detection based on the firefly luciferase–luciferin bioluminescent system features high sensitivity, a ...
三磷酸腺苷(ATP)是细胞能量代谢的核心分子,其含量变化直接反映细胞活力、线粒体功能和代谢状态。基于萤火虫荧光素酶–荧光素体系的发光法ATP检测,具有灵敏度高、线性范围宽、背景低、操作简便等特点,已广泛应用于细胞活力检测、药物毒性评价、代谢通路研究及无菌监测等领域。阿拉丁R1375244 ...
常与免疫学实验一起研究的技术。