相关实验视频

Updated: Jun 8, 2025

Engineering 'Golden' Fluorescence by Selective Pressure Incorporation of Non-canonical Amino Acids and Protein Analysis by Mass Spectrometry and Fluorescence

Engineering 'Golden' Fluorescence by Selective Pressure Incorporation of Non-canonical Amino Acids and Protein Analysis by Mass Spectrometry and Fluorescence

Published on: April 27, 2018

控制温度的衰变和绿色光蛋白 (GFP) 染色体的摆动动力学

Woojin Park¹, Juwon Oh², Jinseok Kim³

¹Department of Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea.

The journal of physical chemistry letters

|November 8, 2024

概括

GFP染色体 (HBDI-) 的兴奋状态动态涉及在扭曲的中间,调节光的摆形状运动. 一个协调的衰变路径,而不是直接的S1衰变,决定了基本状态的回归,这对光强度至关重要.

科学领域:

摄影化学的使用.
频谱学是一种光谱学.
计算化学的计算化学

背景情况:

GFP染色体 (HBDI-) 呈现出复杂的兴奋状态动态.
了解这些动态是控制光特性的关键.

研究的目的:

为了阐明HBDI染色体的兴奋状态动态.
在GFP类分子中建立光调节的新模型.

主要方法:

非adiabatic分子动力学 (NAMD) 模拟.
五秒秒短暂吸收光谱 (fs-TA).

主要成果:

在扭曲的S1中间体中,NAMD揭示了类似子的振荡.
一个协调的S1 → S1 → S1 → S0衰变路径被确定为基本状态的主要路径.
fs-TA在多个时间尺度和温度依赖的衰变路径抑制中证实了这些动态.

结论:

摆形运动和协调衰变途径对于调节HBDI光至关重要.
为GFP染色体兴奋状态动态提出了一个新模型.
低温抑制了协调衰变,延长了光灯的寿命.

更多相关视频

Residue-Specific Exchange of Proline by Proline Analogs in Fluorescent Proteins: How "Molecular Surgery" of the Backbone Affects Folding and Stability

Residue-Specific Exchange of Proline by Proline Analogs in Fluorescent Proteins: How "Molecular Surgery" of the Backbone Affects Folding and Stability

Published on: February 3, 2022

FLIM-FRET Measurements of Protein-Protein Interactions in Live Bacteria.

FLIM-FRET Measurements of Protein-Protein Interactions in Live Bacteria.

Published on: August 25, 2020

相关概念视频

Protein Dynamics in Living Cells

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...

Variables Affecting Phosphorescence and Fluorescence

Variables Affecting Phosphorescence and Fluorescence

Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...