Queried GO term:

  idGO:0032841   Detailed information
  namecalcitonin binding
  def"Interacting selectively and non-covalently with calcitonin, a peptide hormone responsible for reducing serum calcium levels by inhibiting osteoclastic bone reabsorption and promoting renal calcium excretion. It is synthesized and released by the C cells of the thyroid." [GOC:ecd]
  is_aGO:0017046 ! peptide hormone binding

No monarch genes has the input GO term: GO:0032841.