PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16014901-7 2005 By matrix-assisted laser desorption ionization-time of flight mass spectrometry, we determined that a 39-residue tryptic peptide from the N terminus of CP of PPV purified from the spy-3 mutant, but not sec-1 or sec-2, was O-GlcNAc modified, suggesting that SEC but not SPY modifies the capsid. Peptides 121-128 Tetratricopeptide repeat (TPR)-like superfamily protein Arabidopsis thaliana 180-183 16014901-7 2005 By matrix-assisted laser desorption ionization-time of flight mass spectrometry, we determined that a 39-residue tryptic peptide from the N terminus of CP of PPV purified from the spy-3 mutant, but not sec-1 or sec-2, was O-GlcNAc modified, suggesting that SEC but not SPY modifies the capsid. Peptides 121-128 Tetratricopeptide repeat (TPR)-like superfamily protein Arabidopsis thaliana 269-272