1947-39-3Relevant academic research and scientific papers
Efficient chemo-enzymatic synthesis of endomorphin-1 using organic solvent stable proteases to green the synthesis of the peptide
Sun, Honglin,He, Bingfang,Xu, Jiaxing,Wu, Bin,Ouyang, Pingkai
experimental part, p. 1680 - 1685 (2011/08/07)
Endomorphin-1 (Tyr-Pro-Trp-Phe-NH2, EM-1), an effective analgesic, was efficiently synthesized by a combination of enzymatic and chemical methods. Peptide Boc-Trp-Phe-NH2 was synthesized with a high yield of 97.1% by the solvent-stab
Aspartate Racemization in Synthetic Peptides. Part 2. Tendency to Racemization of Aminosuccinyl Residue
Schoen, Istvan,Szirtes, Tamas,Rill, Attila,Balogh, Gabor,Vadasz, Zsolt,et al.
, p. 3213 - 3223 (2007/10/02)
Aminosuccinyl (Asu) peptides, containing a strained ring system, are very vulnerable to epimerization and, during their formation, even as transients, in the presence of nucleophilic and nonnucleophilic bases, partial epimerization occurs.In the presence
SYNTHESIS OF THE CARBOXY-TERMINAL OCTAPEPTIDE OF CHOLECYSTOKININ (CCK-8) BASED ON INCORPORATION OF O4-SULFOTYROSINE BY ENZYMATICALLY CATALYZED FORMATION OF PEPTIDE BONDS
Cerovsky, Vaclav,Hlavacek, Jan,Slaninova, Jirina,Jost, Karel
, p. 1086 - 1093 (2007/10/02)
Papain-catalyzed condensation of sodium salt of tert-butyloxycarbonyl-β-tert-butyloxyaspartyl-O4-sulfotyrosine (fragment 1-2) with methionyl-glycyl-tryptophyl-methionyl-aspartyl-phenylalanine amide (fragment 3-8) has been elaborated.Deprotectio
ENZYMATIC SYNTHESIS OF ASPARTYL-CONTAINING DIPEPTIDES
Adisson, Laurence,Bolte, Jean,Demuynck, Colette,Mani, Jean-Claude
, p. 2185 - 2192 (2007/10/02)
We show that the ability of thermolysin to catalyze the coupling of aspartyl residue with other aminoacids is restricted to phenylalanine.Esterification of the two carboxylic groups of N-protected aspartic acid allows chymotrypsin and papain to catalyze the desired synthesis.
