obsolete suppression by virus of host RIG-I activity by viral RNA 5' processing true suppression by virus of host RIG-I activity by inhibition of RNA binding bf The reason for obsoleting this term is that it is too specific. The exact molecular roles of the individual proteins should be captured separately. GO:0039543 biological_process 2012-01-18T02:30:29Z OBSOLETE. The post-transcriptional removal by a virus of the 5' triphosphate group of their viral RNA, thereby preventing host RIG-I from recognizing viral RNA in the host cell. The intracellular pattern recognition receptor RIG-I (also known as DDX58) recognizes viral RNAs containing 5' triphosphates; removal by the virus of the 5'-terminal triphosphate group from their genome protects the viral RNA from RIG-recognition.