anchor.diff:  LYN,Y,396,Y,397,off by 1 (methionine removed)
   MAP2K2,S,218,S,222,numbering from MAP2K1
   PRKAA1,S,487,S,496,immunogen using misnumbered SGpSVS sequence
  +PRKAA1,T,172,T,183,"Listed as T172/183 in some online resources, not clear where T172 comes from"
   SHC1,S,29,S,139,numbering from isoform p52
   SHC1,Y,239,Y,349,numbering from isoform p52
   SHC1,Y,317,Y,427,numbering from isoform p52
  
positive.code: MAPK3,Y,203,Y,204,off by one
  MAPK7,T,218,T,219,off by one
  MAPK7,Y,220,Y,221,off by one
  PAK1,S,198,S,199,off by one
  PAK1,S,203,S,204,off by one
  RAF1,S,269,T,269,wrong residue
  
negative.code: Gene,OrigRes,OrigPos,CorrectRes,CorrectPos,Comment
  AKT3,S,475,S,472,"off by three, supported by UniProt, Phosphosite"
  ARHGEF2,S,885,S,886,off by one
  BRAF,T,151,S,151,wrong residue
  BRAF,S,578,S,579,wrong residue
  