Hydrolytic Cleavage of Pyroglutamyl-peptide Bond. V. Selective Removal of Pyroglutamic Acid from Biologically Active Pyroglutamylpeptides in High Concentrations of Aqueous Methanesulfonic Acid
Characterization of the Degradation Products of Luteinizing Hormone Releasing Hormone
作者:Michael G. Motto、Patricia F. Hamburg、David A. Graden、Charles J. Shaw、Mary Lou Cotter
DOI:10.1002/jps.2600800504
日期:1991.5
The degradationproducts of luteinizinghormonereleasinghormone [LH/RH; 1; gonadorelin releasinghormone (GnRH); less than Glu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH2] were determined in aqueous solution (pH 6.5) at 25, 37, 50, and 80 degrees C. The predominant route of degradation involved the cleavage of the less than Glu-His and Trp-Ser peptide bonds to give peptides 5-9 and hydrolysis of the