58117-53-6Relevant articles and documents
DEUTERATED TETRAPEPTIDES THAT TARGET MITOCHONDRIA
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Page/Page column 38, (2019/06/05)
Disclosed are deuterated analogs of SBT-20 and elamipretide (MTP-131). The compounds are useful for the treatment and prevention of ischemia-reperfusion injury (e.g., cardiac ischemia-reperfusion injury) or myocardial infarction.
Protease-catalysed synthesis of peptides containing histidine and lysine
Beck-Piotraschke, Karin,Jakubke, Hans-Dieter
, p. 1505 - 1518 (2007/10/03)
The kinetically controlled α-chymotrypsin- and trypsin-catalysed syntheses of peptides starting from simple acyl donor esters containing histidine at the P1-position (nomenclature according to Schechter and Berger) and lysine derivatives as amino components were examined on the basis of their kinetic parameters. Despite higher specificity constants (k(cat)/K(M)) of trypsin-catalysed ester hydrolysis, α-chymotrypsin- catalysed acyl transfer to N(ε)unprotected lysine derivatives gave higher peptide yields as compared to trypsin-catalysed reactions, whereas in acyl transfer to N(ε)-protected lysine derivatives the trypsin-catalysed reaction gave higher yields. α-Chymotrypsin-catalysed acyl transfer reactions in frozen systems demonstrated the yield-enhancing effect of freezing. Using specific ester leaving groups, both the amount of enzyme and the reaction time can be reduced. In frozen systems the ε-amino function of H-Lys-OH acts as an acyl acceptor at pH ≤9.