用MALDI-MSI作为空间蛋白质组的替代矩阵的6-Aza-2-thiothymine
Vanna Denti1, Nicole Monza1, Greta Bindi1
1Proteomics and Metabolomics Unit, Department of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy.
International journal of molecular sciences
|January 8, 2025
概括
这项研究探讨了6-aza-2-thiothymine (ATT) 作为三性的矩阵辅助激光分解/电离-质谱成像 (MALDI-MSI) 的新型矩阵. ATT显示了标准矩阵CHCA的补充优势,为空间蛋白质组学提供了可行的替代方案.
科学领域:
- 蛋白质组学是指蛋白质组学.
- 分析化学 分析化学
- 生物化学 生物化学
背景情况:
- 矩阵辅助激光溶解/电离-质谱成像 (MALDI-MSI) 是一个关键的空间技术.
- α-Cyano-4-hydroxycinnamic acid (CHCA) 是MALDI-MSI中三性分析的标准矩阵,但它存在一些局限性.
- 6-aza-2-thiothymine (ATT) 传统上用于其他分析物,但在MALDI-MSI中没有广泛研究三性.
研究的目的:
- 在MALDI-MSI中评估6-aza-2-thiothymine (ATT) 作为三性电离和映射的矩阵.
- 为了比较ATT的性能与常规矩阵CHCA用于三性分析.
- 建立ATT作为空间蛋白质组学应用的潜在替代矩阵.
主要方法:
- MALDI-MSI用于分析来自牛血清白蛋白 (BSA) 的三性.
- 通过MALDI-MSI绘制了来自甲固定嵌 (FFPE) 组织部分的现场消化.
- 在ATT和CHCA之间进行了比较分析,作为矩阵.
主要成果:
- ATT 证明了从 BSA.中电离化三性的能力.
- ATT成功地绘制了FFPE组织部分的现场消化的地图.
- 在检测三性上,ATT表现出与CHCA相辅相成的强度,表明其潜力.
结论:
- 6-aza-2-thiothymine (ATT) 是一种可行的替代矩阵,用于MALDI-MSI中的三性分析.
- ATT扩展了空间蛋白质组学的矩阵选项,补充了CHCA.
- 这一发现为 MALDI-MSI 空间蛋白质组学应用的进步铺平了道路.
关键词:
6-aza-2-thiothymine是什么? 6-aza-2-thiothymine是什么? 6-aza-2-thiothymine是什么? 6-aza-2-thiothymine是什么?马尔迪-MSI是什么意思蛋白质组学 蛋白质组学空间奥米克斯空间奥米克斯更多相关视频
09:59MALDI-Mass Spectrometric Imaging for the Investigation of Metabolites in Medicago truncatula Root Nodules
Published on: March 5, 2014
18.8K
09:49Investigation of Microbial Cooperation via Imaging Mass Spectrometry Analysis of Bacterial Colonies Grown on Agar and in Tissue During Infection
Published on: November 18, 2022
2.0K
相关概念视频
01:33Peptide Identification Using Tandem Mass Spectrometry
6.4K
Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
6.4K
01:08Matrix-Assisted Laser Desorption Ionization (MALDI)
272
Matrix-assisted laser desorption ionization (MALDI) is a powerful analytical technique used in mass spectrometry. It enables the identification and characterization of various biomolecules, including proteins, peptides, nucleic acids, and carbohydrates. MALDI spectrometry is widely employed in biological and medical research, as well as in fields like pharmacology and biochemistry.
The analyte of interest, a biomolecule or a mixture of biomolecules, is mixed with a suitable matrix material. The...
The analyte of interest, a biomolecule or a mixture of biomolecules, is mixed with a suitable matrix material. The...
272