Takjoo, Rozita, Wilson, David T., Bansal, Paramjit S., Loukas, Alex, Smout, Michael J., and Daly, Norelle L. (2023) Identification of an inter-cysteine loop potentially involved in the activity of Opisthorchis viverrini-granulin-1. Exploration of Drug Science, 1. pp. 172-179.

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Abstract

Aim: Identification of small bioactive regions in proteins and peptides can be useful information in drug design studies. The current study has shown that an inter-cysteine loop of the N-terminal domain of Opisthorchis viverrini granulin-1 (Ov-GRN-1), a granulin protein from the flatworm liver fluke Opisthorchis viverrini which has potent wound healing properties, maintains the bioactivity of the full-length protein.

Methods: Peptides corresponding to the three inter-cysteine loops of the N-terminal domain were produced using synthetic chemistry, and their structures and bioactivities were analyzed using nuclear magnetic resonance (NMR) spectroscopy and cell proliferation assays, respectively.

Results: As expected for such small peptides, NMR analysis indicated that the peptides were poorly structured in solution. However, a seven-residue peptide corresponding to loop 2 (GRN-L2) promoted cell proliferation, in contrast to the other fragments.

Conclusions: The results from the current study suggest that GRN-L2 might be responsible, in part, for the bioactivity of Ov-GRN-1, and might be a useful lead molecule for subsequent wound healing studies.

Item ID:	79289
Item Type:	Article (Research - C1)
ISSN:	2836-7677
Copyright Information:	© The Author(s) 2023. This is an Open Access article licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, sharing, adaptation, distribution and reproduction in any medium or format, for any purpose, even commercially, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Date Deposited:	07 Jun 2024 08:28
FoR Codes:	32 BIOMEDICAL AND CLINICAL SCIENCES > 3205 Medical biochemistry and metabolomics > 320506 Medical biochemistry - proteins and peptides (incl. medical proteomics) @ 100%
SEO Codes:	28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280102 Expanding knowledge in the biological sciences @ 100%
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