http://64188.org/story.php?title=ies-sequest-and-xtandem-were-searched-with-a-fragment-ion Ies). SEQUEST and X!Tandem were searched with a fragment ion mass tolerance of 0.80 Da and a parent ion tolerance of 10.0PPM. Iodoacetamide derivative of cysteine was specified as a fixed modification, whereas oxidation of methionine was specified as a variable modification. Results were merged using Scaffold (Proteome Software) version 3.0.8 which calculated False Discovery Rates (FDRs) using a r Thu, 27 Apr 2023 06:45:21 UTC en