相关实验视频

Updated: Jan 12, 2026

Author Spotlight: Advancing Protein Glycosylation Research Using a Fully Automated System

Author Spotlight: Advancing Protein Glycosylation Research Using a Fully Automated System

Published on: June 28, 2024

在N-和O-甘氨酸上LacdiNAc结构的分布,生物合成,识别,鉴定和生物功能:一篇综述

Yingjie Zhang¹, Lei Wu², Xiaorui Liu¹

¹College of Life Sciences, Northwest University, Xi'an, 710069, PR China.

International journal of biological macromolecules

|November 6, 2025

概括

拉克迪纳克甘氨酸是一种关键的糖化修饰,在生物体中广泛存在,并参与免疫反应和癌症发展等重要生物过程. 需要进一步的研究才能全面了解它们的作用.

科学领域:

葡萄糖科学 (Glycoscience) 是一种科学.
分子生物学分子生物学
生物化学生化学

背景情况:

拉克迪纳克 (GalNAcβ1→4GlcNAc) 是N-和O-甘氨酸上显著的二糖化物修饰.
现有的评论集中在人类瘤中的LacdiNAc甘氨酸,但缺乏全面的理解.

研究的目的:

综合审查LacdiNAc结构的分布,生物合成,识别,鉴定和生物功能.
为了突出LacdiNAc glycan研究的最新进展.

主要方法:

文献综述综合了关于LacdiNAc glycans的当前研究.
分析使用基于MS的糖化学物质,NMR和先进的糖蛋白组学方法的研究.
讨论来自不同生物体,器官和细胞类型的发现.

主要成果:

拉克迪纳克甘氨酸在各种物种中具有广泛的分布,表达水平可变.
经过修改的LacdiNAc结构 (硫酸盐,酸盐,酸盐) 被特定的受体和讲蛋白识别.
先进的葡萄糖蛋白质组技术使含有LacdiNAc的葡萄糖的特定位点识别成为可能.

结论:

拉克迪纳克甘氨酸在激素调节,免疫反应,细胞分化和癌症发育中发挥着关键作用.
了解LacdiNAc glycans对于推进各种生物领域的研究至关重要.
对LacdiNAc glycans的持续调查有望为健康和疾病提供新的见解.

关键词:

生物功能生物功能分发方式分发方式分发方式标识识别识别识别拉克迪纳克糖甘是什么意思

更多相关视频

Author Spotlight: Unveiling the Structural and Dynamic Aspects of Glycan Molecular Recognition

Author Spotlight: Unveiling the Structural and Dynamic Aspects of Glycan Molecular Recognition

Published on: May 17, 2024

Identification and Characterization of Protein Glycosylation using Specific Endo- and Exoglycosidases

Identification and Characterization of Protein Glycosylation using Specific Endo- and Exoglycosidases

Published on: December 26, 2011

相关概念视频

Oligosaccharide Assembly

Oligosaccharide Assembly

Protein glycosylation starts in the ER lumen and continues in the Golgi apparatus. Glycosyltransferases catalyze the addition of sugar molecules or glycosylation of proteins. Usually, these enzymes add sugars to the hydroxyl groups of selected serine or threonine residues to form O-linked glycans or the amino groups of asparagine residues to form N-linked glycans. Different positions on the same polypeptide chain can contain differently linked glycans.
Multiple sugar molecules that may or may...

Glycocalyx and its Functions

Glycocalyx and its Functions

The glycocalyx is a carbohydrate-rich, fuzzy-appearing layer on the outer surface of the cell membrane. It is highly hydrophilic, because of this it attracts large amounts of water to the cell's surface. This aids the cell's interaction with the watery environment and also helps it to obtain substances dissolved in the water. It is also important for cell identification, self/non-self determination, and embryonic development and is used in cell-to-cell attachments to form tissues.

Protein Glycosylation

Protein Glycosylation

Glycosylation, the most common post-translational modification for proteins, serves diverse functions. Adding sugars to proteins makes the proteins more resistant to proteolytic digestion. Glycosylated proteins can act as markers and receptors to promote cell-cell adhesion. Additionally, they have many essential quality control functions in the cell, such as correct protein folding and facilitating transport of misfolded proteins to the cytosol, which can be degraded.
Glycosylation occurs in...

Biosynthesis of Polysaccharides

Biosynthesis of Polysaccharides

Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...

Formation of Lipopolysaccharides

Formation of Lipopolysaccharides

Lipopolysaccharides (LPS) are crucial components of the outer membrane of Gram-negative bacteria, serving both structural and functional roles. It contributes to membrane stability and protects bacteria from host immune responses. LPS is composed of three major regions—lipid A, a core oligosaccharide, and an O antigen. The biosynthesis and assembly of LPS involve a highly coordinated set of enzymatic reactions and transport mechanisms. Additionally, LPS is recognized as an endotoxin,...

Proteoglycans

Proteoglycans

Glycans, a class of complex heterogeneous molecules, can be covalently attached to proteins to form glycosylated proteins that regulate various physiological and pathological processes. Glycosylated proteins or glycoproteins comprise N-linked and O-linked oligosaccharides. O-glycosylation is the most common type of protein glycosylation. Here, glycans attach to the oxygen atom of the hydroxyl groups of Serine or Threonine residues. O-linked glycosylation occurs later in protein processing,...