钾离子信道

Potassium channel Kv1.2, structure in a membrane-like environment. Calculated hydrocarbon boundaries of the lipid bilayer are indicated by red and blue lines.

Crystallographic structure of the bacterial KcsA potassium channel (PDB: 1K4C).[27] In this figure, only two of the four subunits of the tetramer are displayed for the sake of clarity. The protein is displayed as a green cartoon diagram. In addition backbone carbonyl groups and threonine sidechain protein atoms (oxygen = red, carbon = green) are displayed. Finally potassium ions (occupying the S2 and S4 sites) and the oxygen atoms of water molecules (S1 and S3) are depicted as purple and red spheres respectively.

Graphical representation of open and shut potassium channels (PDB: 1lnq and PDB: 1k4c). Two simple bacterial channels are shown to compare the

在细胞生物学的范畴，钾离子信道是最广泛分布的离子信道，且几乎存在大多数的生物中。它们具有钾离子选择性的孔洞在细胞膜上，并且存在于大多数的细胞，控制了广泛的生物功能。

钾离子信道主要有四种分类：

单词	Potassium channel
释义	Potassium channel 英语例句库 Fosfomycin sodium and Tiron can partly block the inhibition to potassium channel by csplatin, and the protection of fosfomycin sodium was better than Tiron . 磷霉素钠和Tiron都能部分拮抗顺铂对钾通道电流的阻断作用。原声例句 Osmosis-泌尿 Meanwhile alpha-adrenergic receptors cause a shift of potassium out of cells via calcium-dependent potassium channels. 同时α肾上腺素受体会通过钙离子依赖性钾离子通道，将钾离子运输出细胞。 Osmosis-泌尿 Having more intracellular potassium and also having more potassium channels promotes potassium secretion. 细胞内钾离子浓度增高和钾通道数量的增加，促进了钾离子的分泌。 Crash Course 解剖生理学篇 Their membranes are dotted with leaky sodium and potassium channels that don't require any external triggers. 它们的膜上点缀着不需要任何外部触发的泄漏钠和钾通道。医学英语心内科 Class-3 potassium channel blockers These agents block the potassium channels responsible for the repolarizing phase. 第三类是钾通道阻滞剂。这类药物阻断复极化时相的钾通道。 Osmosis-泌尿 The depletion of ATP triggers potassium channels on the membrane of muscle cells to open up, which allows potassium to moves down its electrochemical gradient and out of the cell. ATP的消耗触发了细胞膜上钾离子通道的开放，使得钾离子顺电位差梯度移出细胞。 Osmosis-泌尿 Aldosterone increases the number of sodium channels and the number of potassium channels on the lumen side of the principal cell as well as sodium-potassium pumps on the basolateral side of the principal cells. 醛固酮可以增加主细胞内壁钠通道和钾通道的数量和主细胞外壁钠钾离子泵的数量。中文百科钾离子信道在细胞生物学的范畴，钾离子信道是最广泛分布的离子信道，且几乎存在大多数的生物中。它们具有钾离子选择性的孔洞在细胞膜上，并且存在于大多数的细胞，控制了广泛的生物功能。钾离子信道主要有四种分类：英语百科 Potassium channel 钾离子通道 In the field of cell biology, potassium channels are the most widely distributed type of ion channel and are found in virtually all living organisms. They form potassium-selective pores that span cell membranes. Furthermore potassium channels are found in most cell types and control a wide variety of cell functions.
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Potassium channel

钾离子信道

Potassium channel 钾离子通道