相关实验视频
Updated: Aug 12, 2026

12:24
Helical Organization of Blood Coagulation Factor VIII on Lipid Nanotubes
Published on: June 3, 2014
概括
牛肝罗达尼斯是一种具有类似结构半部分的蛋白质,通过Cys-247.7促进硫的转移. 关键的残留物Arg-186和Lys-249在这种酶过程中对基质结合至关重要.
科学领域:
- 生物化学 生物化学
- 酶学 是一种酶学.
- 蛋白质结构 蛋白质结构
背景情况:
- 牛肝罗丹是一种参与硫代谢的酶.
- 该酶由293个氨基酸的单个多链组成.
研究的目的:
- 为了研究牛肝罗丹尼斯的三级结构和催化机制.
- 为了确定参与基质结合和硫转移的关键氨基酸残留物.
主要方法:
- 分析蛋白质的三级结构.
- 硫结合点的识别. 硫结合点的识别.
- 探测基质结合相互作用.
主要成果:
- 罗丹分子的两个半部分表现出相似的三级结构,尽管序列同质性有限.
- 催化硫原子被共地与Cys-247结合在一个硫化物链接中.
- 有证据表明,Arg-186和Lys-249参与基质的识别和结合.
结论:
- 牛肝罗达尼斯具有独特的结构组织,促进其酶功能.
- 在催化过程中,Cys-247是硫原子结合的关键残留物.
- 特定的氨酸和氨酸残留物在酶的基质特异性中起作用.
相关概念视频
Protein Organization
Overview
Protein Folding
Overview
Protein and Protein Structure
Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme can...
A protein's shape is critical to its function. For example, an enzyme can...
Protein Organization
Overview
Protein Organization
Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.
The primary structure of a protein is its amino acid sequence.
Protein Organization
Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.
The primary structure of a protein is its amino acid sequence.

