lactoferrin ( lf ) , the major iron-binding component of milk , also a major constituent of the specific granules of neutrophils involved in antimicrobial activity and a glycoprotein thought to play a role in regulatory functions in the hematopoietic system as well as other physiologic activities , is shown to occur in three isoforms .
C0022942
lactoferrin
C0017968
glycoprotein