Bioactive peptides derived from the enzymatic hydrolysis of cowhide collagen for the potential treatment of atherosclerosis: A computational approach

Abstract

Cowhide collagen hydrolysates (CCHs) are peptides and amino acids obtained from the partial hydrolysis of collagen. These have numerous potential applications in the food, biomedical, and pharmaceutical industries. The study analyzed the physicochemical, antioxidant, and anti-atherosclerosis properties of collagen hydrolysates (CCHs) from cowhide using in silico methods. Proteins were identified in silico based on their molecular weights and origin from the protein database (UniProtKB). Using bioinformatics tools, numerous physicochemical properties (toxicity and amino acid composition) were determined. The identified proteins were subsequently subjected to an in silico enzymatic hydrolysis using pepsin, thermolysin, and proteinase K. The peptides obtained were characterized. Molecular docking was conducted between the peptides generated in silico and the three target enzymes (3-Hydroxy-3-Methylglutaryl-CoA (HMG-CoA) reductase, cyclooxygenase-2, and Nicotinamide Adenine Dinucleotide Phosphate (NADPH) oxidase). Two cowhide collagens were identified, F1MJQ6 and G3MZI7, with molecular weights of 172,076 and 184,867 Da, respectively. A compositional analysis of F1MJQ6 and G3MZI7 revealed the significant presence of glycine residues at 25% and 23%, and proline residues at 16% and 18%, respectively. The G3MZI7 and F1MJQ6 proteins exhibited a high concentration of both essential and semiessential amino acids. The molecular docking results indicate that the antioxidant peptides ADF, PHF, and LW (novel potential anti-atherosclerosis peptides released by enzymatic hydrolysis with pepsin, thermolysin, and proteinase K) are the most promising candidates for further development as inhibitors of HMG-CoA reductase, cyclo-oxygenase-2, and NADPH oxidase. In silico analysis revealed that cowhide collagen hydrolysates exhibited particularly significant antioxidant and anti-atherosclerosis properties.

Keywords

Collagen / Atherosclerosis / Molecular docking / Antioxidant peptides / HMG-CoA reductase inhibitors / Cowhide

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