title: Critical evaluation of the use of bioinformatics as a theoretical tool to find high-potential sources of ACE inhibitory peptides.
abstract: A bioinformatics analysis to screen for high-potential sources of angiotensin converting enzyme (ACE) inhibitory peptides was conducted in the area of insect muscle proteins. Vertebrate muscle proteins are reported as good sources of ACE inhibitory peptides, while the research on invertebrate muscle proteins is limited. A phylogenetic tree constructed with actin sequences of both vertebrate and invertebrate species indicated a high homology. Furthermore, a quantitative in silico ACE inhibition analysis suggested that actin proteins of invertebrates have potentials as new sources of ACE inhibitory peptides. On one insect, Bombyx mori, a more detailed in silico analysis was done followed by a small experimental study. The in silico analysis indicated B. mori as a high-potential source of ACE inhibitory peptides and this was supported by the ACE inhibitory activity of the partially purified actin preparation. In conclusion, in food science, in silico analysis can be used as fast initial screening tool to look for high-potential sources of ACE inhibitory peptides and other peptidic bioactivities.
authors.affiliation: Laboratory of Agrozoology, Department of Crop Protection, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium. Lieselot.Vercruysse@UGent.be
authors.forename: Lieselot
authors.initials: L
authors.lastname: Vercruysse
authors.forename: Guy
authors.initials: G
authors.lastname: Smagghe
authors.forename: Arie
authors.initials: A
authors.lastname: van der Bent
authors.forename: Aart
authors.initials: A
authors.lastname: van Amerongen
authors.forename: Maté
authors.initials: M
authors.lastname: Ongenaert
authors.forename: John
authors.initials: J
authors.lastname: Van Camp
mesh_terms: D000199:Actins / Q000235:genetics; D000595:Amino Acid Sequence; D000806:Angiotensin-Converting Enzyme Inhibitors / Q000494:pharmacology; D000818:Animals; D012831:Bombyx; D019295:Computational Biology; D019476:Insect Proteins / Q000378:metabolism; D008969:Molecular Sequence Data; D009124:Muscle Proteins / Q000378:metabolism; D010455:Peptides / Q000494:pharmacology; D010802:Phylogeny
chemical_list: D000199:Actins; D000806:Angiotensin-Converting Enzyme Inhibitors; D019476:Insect Proteins; D009124:Muscle Proteins; D010455:Peptides