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On the instability of secretin

Authors
Journal
Life Sciences
0024-3205
Publisher
Elsevier
Publication Date
Volume
29
Issue
9
Identifiers
DOI: 10.1016/0024-3205(81)90389-1
Disciplines
  • Biology

Abstract

Abstract Secretin has repeatedly been said to be unstable. We found that the biological potency of secretin solutions under some conditions decreased. We tested hypotheses about the cause(s). Adsorption of secretin on materials in which it is stored may account for most of the rapid decrease of biological potency. Some intramolecular reactions - Asp( α→ β)-rearrangements and peptide chain cleavage - also occur. These reactions are possible causes of a slow decrease of biological potency.

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