Djoko, Kisworo and DEPAMEDE, SULAIMAN N
(2021)
Bioinformatics analysis of structures and ligand-bindings of predicted zymogen granule protein observed on Bali cattle (Bos javanicus) saliva.
Fakultas Peternakan.
Abstract
Objective: Previously, we have shown that predicted zymogen granule protein 16 homolog B (P-G3MZ19) existed in Bali cattle (Bos javanicus) saliva. It was suggested that P-G3MZ19 is a member of the mannose binding lectin family that plays an essential role in innate immunity.Inthe present study, we aimed to analyze the structure and ligand-binding of P-3MZ19 in Bali cattle saliva.
Materials and Methods: Saliva of four adult healthy Bali cattle was collected, lyophilized, and subjected to two-dimensional (2-D) gel electrophoresis. The target spot of around 17 kDa related to P-G3MZ19 was excised for matrix assisted laser desorption ionization time-of-flight mass spectrometer/time-of-flight mass spectrometer mass spectrometry analysis and sequencing. The structure and the ligand-binding of P-3MZ19 were analyzed using bioinformatics software programs published elsewhere.
Results: Based on Iterative Threading ASSEmbly Refinement the 3D model of P-G3MZ19 was suggested to have similarities to exo-alpha-sialidase (EC 3.2.1.18); while its ligand-binding sites consisted of seven residues, i.e., 25aa-26aa (Gly-Gly), 95aa (Phe), 138aa (Tyr), 140aa (Leu), 141aa (Gly), and 143aa (Thr).
Conclusion: The structure of P-G3MZ19 of Bali cattle saliva and its ligand-binding sites have been successfully determined by using bioinformatics techniques. The biological and immunological roles of the peptide are currently under investigation based on P-G3MZ19 synthetic peptides.
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Bioinformatics analysis of structures and ligand-bindings of predicted zymogen granule protein observed on Bali cattle (Bos javanicus) saliva. (deposited 20 Oct 2021 23:45)
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