id author title date pages extension mime words sentences flesch summary cache txt cord-007373-livz5zuu Gayathri, P. Crystal structure of the serine protease domain of Sesbania mosaic virus polyprotein and mutational analysis of residues forming the S1-binding pocket 2006-03-15 .txt text/plain 6204 362 62 authors: Gayathri, P.; Satheshkumar, P.S.; Prasad, K.; Nair, Smita; Savithri, H.S.; Murthy, M.R.N. title: Crystal structure of the serine protease domain of Sesbania mosaic virus polyprotein and mutational analysis of residues forming the S1-binding pocket In the present study, the crystal structure of SeMV protease domain was determined to a resolution of 2.4 Å by multiple isomorphous replacement coupled with anomalous scattering, with a view to identify the residues involved in substrate binding as well as protease -VPg interactions. The absence of well-defined density for F301 in SeMV protease suggests that its side chain might undergo substantial displacement on binding of the substrate or on conformational changes induced by the interaction of the protease domain with VPg. TEV and equine arteritis virus proteases, in which a serine residue occurs at the position corresponding to F301, are active in trans. ./cache/cord-007373-livz5zuu.txt ./txt/cord-007373-livz5zuu.txt