Small Molecular Antimicrobial Ligands of YspD are Potential Therapeutic Agents Against Yersinia enterocolitica Infection

YspD is a hydrophilic translocator forming the platform for assemblage of functional translocon. Exposure to the extra-cellular milieu makes YspD a potential therapeutic target. DoGSiteScorer predicted best druggable pocket (P0) within YspD, encompassing predominantly the C -terminal helical bundles...

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Veröffentlicht in:National Academy of Sciences, India. Proceedings. Section B. Biological Sciences India. Proceedings. Section B. Biological Sciences, 2023, Vol.93 (2), p.461-471
Hauptverfasser: Mandal, Debjani, Mukherjee, Raktim, Ghosh, Shrabana, Bachhawat, Tamanna, Dutta, Sneha, Das, Urmisha, Basu, Abhishek
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container_title National Academy of Sciences, India. Proceedings. Section B. Biological Sciences
container_volume 93
creator Mandal, Debjani
Mukherjee, Raktim
Ghosh, Shrabana
Bachhawat, Tamanna
Dutta, Sneha
Das, Urmisha
Basu, Abhishek
description YspD is a hydrophilic translocator forming the platform for assemblage of functional translocon. Exposure to the extra-cellular milieu makes YspD a potential therapeutic target. DoGSiteScorer predicted best druggable pocket (P0) within YspD, encompassing predominantly the C -terminal helical bundles and the long helices-9 & 5. COACH metaserver also identified ligand binding residues within the aforementioned druggable pocket mapping to helix-9. Amino acids of helix-9 are involved in oligomerization of YspD. Interaction of helix-9 and parts of C -terminal of YspD with hydrophobic translocator protein (YspB), is essential for translocation of bacterial effectors to initiate an infection. Helices-9 & 5 form an intramolecular coiled-coil structure, required for protein–protein interaction. Targeting intramolecular coiled-coil and parts of C -terminal would be important for functional inactivation of YspD. Solvent exposed surface in YspD, particularly in P0, enhances its accessibility to ligands. Nine small molecular inhibitors of TIIISS were identified and retrieved from ZINC15 database (drug-library) as putative drug candidates. Molecular docking of potential ligands with P0 was done using SwissDock server and Achilles Blind Docking server. Considering the “Significance” threshold of binding score and region of interaction, Salicylidene Acyl Hydrazide derivatives (INP0400) and Phenoxyacetamide derivative (MBX1641) were found to bind effectively with YspD. These potential ligands interact with functional domains of YspD including parts of C -terminal and the intramolecular coiled-coil, which may affect the oligomerization of YspD and disrupt the interaction of YspD with YspB, inhibiting formation of functional translocon. The identified small molecular antimicrobial ligands of YspD could be tested in vivo to attenuate Y. enterocolitica infection by deregulation of Ysa-Ysp TIIISS.
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subjects Behavioral Sciences
Biomedical and Life Sciences
Drug development
Hydrophobicity
Infections
Life Sciences
Ligands
Nucleic Acid Chemistry
Oligomerization
Plant Biochemistry
Protein structure
Proteins
Research Article
Therapeutic targets
title Small Molecular Antimicrobial Ligands of YspD are Potential Therapeutic Agents Against Yersinia enterocolitica Infection
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