Statistical Analysis of Spectral Count Data Generated by Label-Free Tandem Mass Spectrometry-Based Proteomics

2011 ◽  
pp. 297-309
Author(s):  
Thang V. Pham ◽  
Connie R. Jimenez
2009 ◽  
Vol 26 (3) ◽  
pp. 363-369 ◽  
Author(s):  
Thang V. Pham ◽  
Sander R. Piersma ◽  
Marc Warmoes ◽  
Connie R. Jimenez

2019 ◽  
Vol 2 (1) ◽  
pp. 8 ◽  
Author(s):  
Jesse Meyer

The identification of nearly all proteins in a biological system using data-dependent acquisition (DDA) tandem mass spectrometry has become routine for organisms with relatively small genomes such as bacteria and yeast. Still, the quantification of the identified proteins may be a complex process and often requires multiple different software packages. In this protocol, I describe a flexible strategy for the identification and label-free quantification of proteins from bottom-up proteomics experiments. This method can be used to quantify all the detectable proteins in any DDA dataset collected with high-resolution precursor scans and may be used to quantify proteome remodeling in response to drug treatment or a gene knockout. Notably, the method is statistically rigorous, uses the latest and fastest freely-available software, and the entire protocol can be completed in a few hours with a small number of data files from the analysis of yeast.


2019 ◽  
Vol 55 (53) ◽  
pp. 7595-7598 ◽  
Author(s):  
Yue Yu ◽  
Si-Hao Zhu ◽  
Fang Yuan ◽  
Xiao-Hui Zhang ◽  
Yan-Ye Lu ◽  
...  

A label-free ultrasensitive method was established for the simultaneous determination of RNA modified nucleotides based on a sheathless capillary electrophoresis–tandem mass spectrometry system and successfully applied to investigate the effects of exposure to nickel ions on RNA epigenetics.


PROTEOMICS ◽  
2011 ◽  
Vol 11 (3) ◽  
pp. 495-500 ◽  
Author(s):  
Divya Krishnamurthy ◽  
Yishai Levin ◽  
Laura W. Harris ◽  
Yagnesh Umrania ◽  
Sabine Bahn ◽  
...  

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