Queried GO terms:

  idGO:0017006   Detailed information
  nameprotein-tetrapyrrole linkage
  namespacebiological_process
  def"The covalent linking of a tetrapyrrole to a protein." [GOC:ai]
  subsetgosubset_prok
  is_aGO:0006464 ! protein modification process

No monarch genes has this GO term.