相关实验视频

Updated: May 9, 2025

Improved In-gel Reductive β-Elimination for Comprehensive O-linked and Sulfo-glycomics by Mass Spectrometry

Improved In-gel Reductive β-Elimination for Comprehensive O-linked and Sulfo-glycomics by Mass Spectrometry

Published on: November 20, 2014

最近在检测和表征3-O-硫酸硫酸的分析方面取得的进展

Elias Mernie¹, Joseph Zaia²

¹Department of Biochemistry & Cell Biology, Center for Biomedical Mass Spectrometry, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, 02118, USA.

Analytical and bioanalytical chemistry

|May 6, 2025

概括

肝硫酸盐 (HS) 3-O-硫化是罕见的,但对于许多生物过程至关重要. 分析技术的进步正在改善对3-O-硫酸盐的HS作用的检测和理解.

科学领域:

生物化学生物化学
葡萄糖生物学葡萄糖生物学
分子生物学分子生物学

背景情况:

肝硫酸盐 (HS) 是一种复杂的多糖,在细胞表面和细胞外基质上的蛋白质糖 (HSPG) 中发现.
HS结构涉及重复的二糖体单元,具有广泛的聚合后修饰,包括各种硫化模式.
由HS3-O-硫转移酶 (HS3OST) 催化的HS的3-O-硫化是最不常见但功能上最重要的修饰.

研究的目的:

审查分析技术的最新进展,以表征3-O-硫酸.
突出发现和理解3O硫化HS的生物作用的挑战.
建议未来的方向,以改善分析和理解3-O-硫酸盐的HS功能.

主要方法:

对酸分析分析分析技术的当前文献的综述.
专注于适用于低丰度,高度特定的硫化模式的方法.
讨论现有分析方法的挑战和局限性.

主要成果:

几种分析技术已经用于检测和表征3-O-硫酸.
3-O-硫酸盐的低丰度和异质性 HS 带来了重大的分析挑战.
尽管面临挑战,但在了解其在抗凝,细胞分化,癌症,病毒进入和神经元发育中的作用方面取得了进展.

结论:

改进的分析方法对于全面了解3-O-硫酸的分析方法至关重要.
需要进一步的研究,以阐明3-O-硫化HS的精确机制和病理影响.
鉴定3-O-硫酸的HS将促进我们对许多生理和病理过程的了解.

关键词:

3-O-硫化三氧化.肝素硫酸盐是什么肝素硫酸盐是什么质谱测量质量谱测量蛋白质甘油可以是蛋白质甘油.

更多相关视频

Detection of Glycosaminoglycans by Polyacrylamide Gel Electrophoresis and Silver Staining

Detection of Glycosaminoglycans by Polyacrylamide Gel Electrophoresis and Silver Staining

Published on: February 25, 2021

Metabolic Glycoengineering of Sialic Acid Using N-acyl-modified Mannosamines

Metabolic Glycoengineering of Sialic Acid Using N-acyl-modified Mannosamines

Published on: November 25, 2017

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...

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,...

Glycosaminoglycans

Glycosaminoglycans

Glycosaminoglycans (GAGs), also known as mucopolysaccharides, are long and linear polymers comprising of specific repeating disaccharides - the amino sugar that can be N-acetylglucosamine or N-acetylgalactosamine, and a uronic acid that is usually glucuronic acid or iduronic acid.
GAGS are found in the extracellular matrix of vertebrates, invertebrates, and bacteria. Due to their polar nature they attract water, and serve as excellent lubricants or shock absorbers in an animal body.
Hyaluronic...