Study of the mass spectrometric fragmentation of pseudouridine: comparison of fragmentation data obtained by matrix-assisted laser desorption/ionisation post-source decay, electrospray ion trap multistage mass spectrometry, and by a method utilising electrospray quadrupole time-of-flight tandem mass spectrometry and in-source fragmentation

2005 ◽  
Vol 19 (21) ◽  
pp. 3075-3085 ◽  
Author(s):  
Edward Dudley ◽  
Robin Tuytten ◽  
Alison Bond ◽  
Filip Lemière ◽  
A. Gareth Brenton ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Ion Trap ◽  
Laser Desorption ◽  
Mass Spectrometric ◽  
Tandem Mass ◽  
Post Source Decay ◽  
Mass Spectrometric Fragmentation ◽  
Matrix Assisted Laser ◽  
Matrix Assisted Laser Desorption

Proteomic Analysis of Gill Mucus from Grass Carp Ctenopharyngodon idella

2013 ◽  
Vol 718-720 ◽  
pp. 288-292
Author(s):  
Guo Yong Liu ◽  
Xiao Tao Shi ◽  
Zhi Ying Tu ◽  
Li Ming Liu ◽  
Ying Ping Huang
Keyword(s):  
Mass Spectrometry ◽  
Tandem Mass Spectrometry ◽  
Laser Desorption ◽  
Ctenopharyngodon Idella ◽  
Tandem Mass ◽  
Two Dimensional ◽  
Laser Desorption Ionization ◽  
Desorption Ionization ◽  
Matrix Assisted Laser ◽  
Matrix Assisted Laser Desorption

Fish gills is part of the first-line defense in fish. The proteome in gill mucus of grass carp (Ctenopharyngodon idella) was examined in this study. Two-dimensional polyacrylamide gel electrophoresis, in combination with size exclusion chromatography, was used to resolve the proteins. Two-dimensional maps of gill mucus revealed 406 distinct spots with Coomassie blue staining, of which 256 protein spots were subjected to identification using matrix-assisted laser desorption / ionization time-of-flight (MALDI-TOF), matrix-assisted laser desorption / ionization tandem mass spectrometry (MALDI-MS / MS) and liquid chromatography tandem mass spectrometry (LC-MS / MS). A total of 99 spots representing 52 proteins were identified, including 19 immune-related molecules such as lectin, interlectin, transferrin, and proteasome. Their presence in gill mucus may imply the importance of non-specific immunity in gill mucus. The present study provides the first picture on proteome in mucus of a fish species, and thus the foundation for understanding quantitative and qualitative variation in proteins in the mucus.

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