... basis of ligand recognition by PABC, a highly specific peptide-binding domain found in poly(A)-binding protein and aHECT ubiquitin ligase. EMBO J 23, 272–281.9 Craig A (1998) Interaction of polyadenylate-bindingprotein ... step in protein syn-thesis, and is usually regulated by several importantinitiation factors, including poly(A)-binding protein(PABP) 1 and eukaryotic initiation factors (eIFs) 4E,4G, 2a, and ... protein with a higher isoelectric point, and appeared as a single spot in two- dimensional gels. Fol-lowing 24 h of recovery from heat shock, the abun-dance of PABP1 increased, and nearly all of...