期刊
PEPTIDES
卷 76, 期 -, 页码 30-44出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.peptides.2015.11.003
关键词
Gastrointestinal endogenous proteins; Gut non-dietary proteins; Bioactive peptides; Gastrointestinal tract; Cryptome proteins; Classification of bioactive peptides; Angiotensin I converting enzyme (ACE-I) inhibition; Renin; Antioxidant peptides
资金
- Centre of Research Excellence fund from the Tertiary Education Commission
- Ministry of Education, New Zealand
It is well known that endogenous bioactive proteins and peptides play a substantial role in the body's first line of immunological defence, immune-regulation and normal body functioning. Further, the peptides derived from the luminal digestion of proteins are also important for body function. For example, within the peptide database BIOPEP (http://www.uwm.edu.pl/biochemia/index.php/en/biopep) 12 endogenous antimicrobial and 64 angiotensin-I-converting enzyme (ACE-I) inhibitory peptides derived from human milk and plasma proteins are listed. The antimicrobial peptide database (http://aps.unmc.edu/AP/main.php) lists over 111 human host-defence peptides. Several endogenous proteins are secreted in the gut and are subject to the same gastrointestinal digestion processes as food proteins derived from the diet. The human gut endogenous proteins (GEP) include mucins, serum albumin, digestive enzymes, hormones, and proteins from sloughed off epithelial cells and gut microbiota, and numerous other secreted proteins. To date, much work has been carried out regarding the health altering effects of food-derived bioactive peptides but little attention has been paid to the possibility that GEP may also be a source of bioactive peptides. In this review, we discuss the potential of GEP to constitute a gut cryptome from which bioactive peptides such as ACE-I inhibitory, renin inhibitory and antioxidant peptides may be derived. (C) 2015 Elsevier Inc. All rights reserved.
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