Top chemical compounds for concept: c_0203

# Observed top chemical compounds associated with the concept c_0203
#  mined from the 'HETATM' record lines within the wwPDB
#  coordinate files of this concept's usages. 
#   -------------------------------------------------------------c_0203
#   %Freq     Ligand/Chemical Compound
#   ------------------------------------------------------------------- 
    17.0      15 MG MAGNESIUM ION
     8.0       7 SE SELENIUM ATOM
     3.4       3 SO4 SULFATE ION
#   ------------------------------------------------------------------- 
#   Notes: %Freq gives (as a percentage) the number of usages
#      of the concept in which the associated Chemical Compund or
#      Ligand was observed in the HETATM record.
#   -------------------------------------------------------------c_0203