#glycoprotein  a conjugated protein having a carbohydrate component
  supertype:  #conjugated_protein__compound_protein  a protein complex combining amino acids with other substances
  subtype:  #mucin  a nitrogenous substance found in mucous secretions; a lubricant that protects body surfaces
  subtype:  #lectin  any of several plant glycoproteins that act like specific antibodies but are not antibodies in that they are not evoked by an antigenic stimulus
  subtype:  #mucoid  any of several glycoproteins similar to mucin
  subtype:  #transferrin__betaglobulin__siderophilin  glycoprotein that carries iron in the blood

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