- Human rhinovirus 2A proteinase cleavage sites in eukaryotic initiation factors (eIF) 4GI and eIF4GII are different.
Human rhinovirus 2A proteinase cleavage sites in eukaryotic initiation factors (eIF) 4GI and eIF4GII are different.
Journal of virology (2003-03-29)
Alessandra Gradi, Yuri V Svitkin, Wolfgang Sommergruber, Hiroaki Imataka, Shigenobu Morino, Tim Skern, Nahum Sonenberg
PMID12663812
RESUMEN
Several picornaviruses shut down host cellular protein synthesis by proteolytic cleavage of the eukaryotic initiation factor (eIF) 4GI and eIF4GII isoforms. Viral RNA translation is maintained by a cap-independent mechanism. Here, we identify the human rhinovirus 2 2A(pro) cleavage site in eIF4GII in vitro as PLLNV(699)*GSR; this sequence lies seven amino acids C-terminal to the cleavage site previously identified in eIF4GI (LSTR681*GPP).