Abstract

Peptides offer a promising analogue to synthetic drugs in treating hyperuricemia. This article introduces reliable amino acid patterns that cause the inhibitory xanthine oxidase (CSR) activity of peptides. The research objective was to propose new antihyperuricemic peptides and prove their effectiveness by predictive analytics in silico.
The study featured peptides with inhibitory xanthine oxidase activity. The authors developed a protocol for searching, identifying, and quantifying patterns of amino acid residues in target peptide sequences. The identified peptides were tested for physicochemical properties, pharmacokinetic profile, inhibitory xanthine oxidase activity, general and target biological activity, and toxicity.
The research revealed amino acid patterns responsible for inhibiting the xanthine oxidase enzyme, as well as generated new peptide sequences. Forty-nine non-toxic peptides with different lengths of amino acid sequences demonstrated high antimicrobial and inhibitory potential against the targeted drugs used to treat hyperuricemia and type 2 diabetes mellitus. The peptides were low-molecular compounds of predominantly hydrophilic and hydrophobic nature, 4-7 amino acids long. They contained negatively charged amino acid residues of proline, tryptophan, and phenylalanine with an average molecular weight of 723 Da. The study offers an important insight into the molecular mechanisms of xanthine oxidase inhibition and opens up new prospects for developing novel antihyperuricemic peptide drugs.

Keywords

Peptides, hyperuricemia, xanthine oxidase inhibitors, amino acid patterns, IC50

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