Abnormal (hydroxy)prolines deuterium content redefines hydrogen chemical mass
H. Gharibi, A. L. Chernobrovkin, G. Eriksson, A. S. Dibavar, Z. Timmons, A. C. Kitchener, D. Kalthoff, K. Liden, A. A. Makarov, R. Zubarev
The paper finds unexpectedly high deuterium levels in proline and hydroxyproline residues of seal bone collagen, challenging assumptions about diet and environmental influences on isotopic signatures.
bioRxiv · Nov 11, 2021Biochemistry