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相关概念视频

Coordination Number and Geometry02:57

Coordination Number and Geometry

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For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
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VSEPR Theory for Determination of Electron Pair Geometries
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Self-Awareness and Its Effects01:21

Self-Awareness and Its Effects

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Self-awareness is a psychological state in which the individual becomes the focal point of their attention. This inward focus transforms the self into an object of contemplation and assessment, influencing how individuals perceive their actions and their alignment with personal and societal standards.Triggers and Contexts for Self-AwarenessSelf-awareness can be activated by external stimuli that make individuals visually or audibly aware of themselves, such as mirrors, cameras, or recordings.
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Altered States of Awareness01:06

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Altered states of consciousness represent significant deviations from one's normal mental state. These deviations can range from subtle changes in awareness to profound transformations in perception, thought processes, and sensory experiences. Altered states of consciousness can be triggered by various factors, including drug use, meditation, hypnosis, illness, or even intense fatigue.
The ingestion of substances like stimulants or hallucinogens leads to chemical alterations in the brain...
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Subconsciousness and No Awareness01:15

Subconsciousness and No Awareness

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The concept of subconscious awareness refers to the processing of information below the level of conscious thought, which significantly influences both behaviors and decisions. It is also known as waking subconscious awareness. This complex level of cognition operates without the direct awareness of the individual, facilitating rapid and simultaneous handling of multiple information streams.
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High-Level and Low-Level Awareness01:19

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Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
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相关实验视频

Updated: Jan 26, 2026

Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior
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GeoGAD:对相补性确定区域精密工程的几何感知抗体设计框架.

Songjian Wei1, Jinxiong Zhang1,2, Yan Chen1,2

  • 1School of Computer, Electronics and Information, Guangxi University, Nanning, Guangxi 530004, China.

Bioinformatics (Oxford, England)
|January 25, 2026
PubMed
概括

通过精确建模互补性确定区域 (CDR) 的几何约束,GeoGAD增强了抗体设计. 这种几何意识框架改善了抗体序列结构共建和治疗应用的亲和力优化.

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科学领域:

  • 计算生物学是一种计算生物学.
  • 免疫信息学是指免疫信息学.
  • 蛋白质工程是一种蛋白质工程.

背景情况:

  • 抗体对免疫反应至关重要,通过通过互补性决定区域 (CDR) 通过抗原结合中和病原体.
  • 当前的CDR设计方法与几何约束,多尺度空间关系和形态表示作斗争,限制了预测准确性.
  • 精确的抗体设计对于开发有效的诊断和治疗方法至关重要.

研究的目的:

  • 介绍GeoGAD,一个新的几何感知抗体设计框架.
  • 解决现有的抗体设计方法的局限性,特别是对CDRs的几何和形状方面的建模.
  • 提高用于治疗目的的计算抗体设计的准确性和效率.

主要方法:

  • 开发了GeoGAD,结合了用于几何灵敏度的旋转定位编码.
  • 集成了一个使用动态消息传递和自适应边缘改进的几何意识模块.
  • 采用高斯注意力机制与边缘类型敏感的空间高斯内核用于长距离序列依赖模型.
  • 利用多边缘类型的坐标优化,以实现精确的空间特征集成.

主要成果:

  • 在抗体序列结构联合建模,CDR设计和亲和度优化方面,GeoGAD在与最先进的模型相比显示出优越或可比的性能.
  • 实现了高氨基酸回收率 (AAR) 和卓越的结构精度 (RMSD,TM-score).
  • 该框架有效地模拟了远程序列依赖性,同时专注于关键的局部残留物.

结论:

  • GeoGAD为先进的抗体设计提供了一个几何一致的框架.
  • 增强的CDR几何模型显著提高了抗体设计精度.
  • 这一框架对下一代治疗抗体的计算设计具有前景.