Abstract
Seafood provides a range of health benefits because of its high protein levels. In this study, a novel peptide, YPRKDETGAERT, was identified from NHA-2 of Mytilus edulis by capillary-electrophoresis electrospray ionization-quadrupole-time of flight (CESI-Q-TOF). Peptide YPRKDETGAERT showed the highest affinity among all the peptides, with -CDOCKER energy values of 204.482 kcal/mol on one integrin (PDB: 3VI4 ) and 210.16 kcal/mol on another integrin (PDB: 1L5G ). The secondary mass spectrogram at the m/ z of peptide YPRKDETGAERT was 1422.53 Da, which was determined by CESI-Q-TOF. Peptide YPRKDETGAERT induced an increase of 28.27 ± 3.66% in mouse-MC3T3-E1-preosteoblast-cell growth. The alkaline-phosphatase activity of peptide YPRKDETGAERT was 2.79 ± 0.07 mU, which was an increase of 21.25% compared with that of the control. These results provide theoretical and practical insights for the preparation and application of osteogenic peptides in the functional-foods industry.
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