11063
Of five candidate cysteines for modification by 2 mM GSNO ( positions 26 , 122 , 150 , 226 , 227 ) , the last four were analyzed using MALDI - TOF / TOF mass spectrometry and then quantified using the Selected Reaction Monitoring Approach on hyphenated HPLC with a triple quadrupole mass spectrometer .
 Chemical: GSNO
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: GSNO