PlumX Metrics
Embed PlumX Metrics

Stability of peptide amides under high pressure

High Pressure Research, ISSN: 0895-7959, Vol: 27, Issue: 1, Page: 17-22
2007
  • 2
    Citations
  • 0
    Usage
  • 4
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

Article Description

The effects of pressure on two-model peptide amides have been analysed since the modifications in those groups are usually related to changes in protein/peptide functionality. Pressure accelerated the hydrolysis at the C-terminal amide of the dipeptide H-Leu-Gly-NH2, producing the diketopiperazine cLG that might have a biological role. Furthermore, pressure accelerated the deamidation of the asparagine residue in the oligopeptide H-Val-Pro-Gly-Val-Gly- Asn-Gly-Val-Pro-Gly-Val-Gly-OH containing an Asn-Gly sequence, probably via a cyclic imide intermediate, producing a peptide with aspartic acid. The reported pressure-induced modifications in amide groups were slow under the considered conditions (600-800MPa, 60-80C). Effects under parameters closer to pressure-assisted thermal sterilization remain to be investigated.

Bibliographic Details

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know