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相关概念视频

Coat Assembly and GTPases01:33

Coat Assembly and GTPases

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Vesicles incorporate different coat protein subunits in different cell locations, which changes the properties of the coat, such as the shape and geometry of the transport vesicles. Thus, vesicle coat proteins also play a significant role in cargo selection.
Coat assembly depends on the local availability of phosphatidylinositol phosphates or PIPs and GTP-binding proteins. Adaptor proteins, which link the coat proteins to the membrane, bind to these PIPs and play a crucial role in controlling...
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GTPases and their Regulation02:14

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Guanine nucleotide-binding proteins (G-proteins), also known as GTPases, are a superfamily of proteins that regulate many cellular processes, such as cell signaling, vesicular transport, and the regulation of cell shape and motility. Mutation or dysfunction of these proteins can lead to disease. There are around 40,000 known G-proteins that can broadly be classified into two groups ‒  small G-proteins consisting of a single domain and large multi-domain G-proteins.
Large G-proteins,...
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Synthesis of Stimuli-responsive Nanogels using Aqueous One-step Crosslinking and Co-nanopolymerization
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量化和调节蛋白质封装在基于关诺辛的超分子颗粒中的蛋白质封装.

Luis A Prieto-Costas1, Génesis R Rivera-Cordero1, José M Rivera1

  • 1Department of Chemistry and Molecular Sciences Research Center, University of Puerto Rico at Río Piedras, San Juan, Puerto Rico 00926, United States.

Bioconjugate chemistry
|October 30, 2023
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种流细胞测量方法,以量化超分子囊 (SHS) 颗粒中的蛋白质封装. 这种技术允许调整特定蛋白质结合的粒子特性,从而推进药物递送应用.

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科学领域:

  • 生物技术是生物技术.
  • 材料科学 材料科学 材料科学
  • 生物化学 生物化学

背景情况:

  • 蛋白质封装保存了结构和功能.
  • 根据蛋白质特征量身定制保护剂可以调节特性.
  • 超分子囊 (SHS) 粒子提供了一个新的封装平台.

研究的目的:

  • 为量化SHS颗粒中的蛋白质封装适应流细胞计法.
  • 评估SHS颗粒对于特定蛋白质结合的可调性.
  • 为了研究粒子修饰对蛋白质亲和力的影响.

主要方法:

  • 开发了一种流动细胞计量试验,以量化SHS颗粒中光素异硫酸 (FITC) 标记蛋白质的封装.
  • 使用共聚焦激光扫描显微镜 (CLSM) 来成像蛋白质分布.
  • 研究了阿维丁-生物素相互作用来调整SHS粒子亲和力.

主要成果:

  • 量化蛋白质封装,显而易见的关联常数在微分子范围,用水性作为一个关键因素.
  • CLSM证实了颗粒中的蛋白质分布.
  • 调整SHS颗粒的阿维丁与生物素的亲和力表明了和效应,可能是由于交叉链接.

结论:

  • 流细胞计方法对于高通量,可重复的蛋白质封装量化是有效的.
  • SHS颗粒可以调整为特定的蛋白质结合,并有可能用于药物输送应用.
  • 使用较低亲和度联体的进一步优化可以增强蛋白亲和度调制.