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相关概念视频

G-Protein Gated Ion Channels01:21

G-Protein Gated Ion Channels

4.5K
GPCRs are primarily responsible for our sense of smell, taste, and vision.  The binding of a sensory stimulus activates GPCR to stimulate effector proteins, many of which are ion channels in the sensory organs. GPCRs modulate the opening and closing of the target ion channels either directly by binding them, or by releasing second messengers that activate these channels. As ions move across the membrane, the membrane potential is altered, which induces an appropriate response.
Sensory...
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Channel Rhodopsins01:11

Channel Rhodopsins

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Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
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相关实验视频

Updated: May 29, 2025

Controllable Ion Channel Expression through Inducible Transient Transfection
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Controllable Ion Channel Expression through Inducible Transient Transfection

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光遗传工程用于离子通道调制.

Tianlu Wang1, Tatsuki Nonomura1, Tien-Hung Lan1

  • 1Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M University, Houston, TX 77030, USA.

Current opinion in chemical biology
|February 4, 2025
PubMed
概括
此摘要是机器生成的。

光遗传学使用光和基因工程来控制细胞活动,推进生物医学研究和治疗. 新的基因编码光敏感离子通道执行器和调制器 (GELICAMs) 提供了多样化的应用.

关键词:
道罗多普辛 在线播放免疫治疗是一种免疫疗法.离子通道 离子通道神经退行发生神经退行.视觉遗传学 视觉遗传学蛋白质工程是一种蛋白质工程.合成生物学 合成生物学

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Combining Optogenetics with Artificial microRNAs to Characterize the Effects of Gene Knockdown on Presynaptic Function within Intact Neuronal Circuits
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Electromechanical Assessment of Optogenetically Modulated Cardiomyocyte Activity
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Electromechanical Assessment of Optogenetically Modulated Cardiomyocyte Activity

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相关实验视频

Last Updated: May 29, 2025

Controllable Ion Channel Expression through Inducible Transient Transfection
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Controllable Ion Channel Expression through Inducible Transient Transfection

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Combining Optogenetics with Artificial microRNAs to Characterize the Effects of Gene Knockdown on Presynaptic Function within Intact Neuronal Circuits
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科学领域:

  • 生物医学工程 生物医学工程
  • 分子生物学分子生物学
  • 神经科学是一个神经科学.

背景情况:

  • 光遗传学整合了光子学和基因工程,以精确控制细胞过程.
  • 它在研究中的采用是由时空控制,最小入侵性和可逆性驱动的.
  • 应用范围从恢复视力到治疗神经和心脏疾病.

研究的目的:

  • 审查工程的最新进展,遗传编码的光敏感离子通道执行器和调节器 (GELICAMs).
  • 探索新开发的GELICAMs的多样化的离子选择性和光谱灵敏度.
  • 讨论GELICAMs在生物医学研究和治疗方面的潜在应用和挑战.

主要方法:

  • 总结工程GELICAM的进展,具有不同的离子选择性和光谱灵敏度.
  • 审查微生物通道罗多普辛 (ChRs) 用于神经元和心脏活动操纵的使用.
  • 讨论植物衍生的可光切换域的工程,将其转化为离子通道.

主要成果:

  • 开发具有增强和多样化的离子选择性的GELICAMs.
  • 在工程光遗传工具中扩大光谱灵敏度.
  • 微生物和脊椎动物罗多普辛的演示,用于精确的细胞控制.

结论:

  • 杰利卡姆 (GELICAM) 代表了光遗传工具的重大进步.
  • 这些工程蛋白质对各种生物医学研究和治疗应用具有前景.
  • 需要进一步的研究来克服临床翻译方面的挑战.