the pokeweed antiviral protein , previously identified in two forms ( pap and pap ii ) in the leaves of phytolacca americana ( pokeweed ) [ obrig . irvin & hardesty ( 1973 ) arch . biochem . biophys . 155 , 278-289 ; irvin , kelly & robertus ( 1980 ) arch . biochem . biophys . 200 , 418-425 ] is a protein that prevents replication of several viruses and inactivates ribosomes , thus inhibiting protein synthesis .
C0035553
ribosomes
C0597295
protein synthesis