L-glutamyl 5-omega-hydroxyceramide ester 760.7308349609375 761.28997802734375 888.7894287109375 889.41998291015625 natural C 55 H 104 N 2 O 6 none (S)-2-amino-5-[30-((2S,3R,4E)-1,3-dihydroxyicos-4-en-2-ylamino)-30-oxotriacontan-1-yloxy]-5-oxopentanoic acid MOD:00352 A protein modification that effectively converts an L-glutamic acid residue to L-glutamyl 5-omega-hydroxyceramide ester. PSI-MOD C 50 H 96 O 4 L-glutamyl 5-omega-hydroxyceramide ester 2-[30-(isoglutamyloxy)triacontanoyl]icosasphingosine Q LIPID Omega-hydroxyceramide glutamate ester modified L-glutamine residue lipoconjugated residue