Evidence map›Paper›PMID 32748070›Full record

ArticleJournal of molecular modeling2020

Insight into natural inhibitors and bridging docking to dynamic simulation against sugar Isomerase (SIS) domain protein.

Faisal Ahmad, Zartasha Shabaz, Syed Sikander Azam

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Article in Journal of molecular modeling, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Faisal AhmadComputational Biology Lab, National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan.
Zartasha ShabazComputational Biology Lab, National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan.
Syed Sikander AzamComputational Biology Lab, National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan. syedazamazam2008@gmail.com.ORCID http://orcid.org/0000-0001-5624-6120

Funding

Pakistan-United States Science and Technology Cooperation Program Pak-US/2017/360
6 · The paper itself

Abstract

The pathogen Legionella longbeachae is a causative agent of legionellosis. The antibiotic resistance is the major problem of this modern world. Thus, selective pressure warrants the need for identification of newer drug target. In current study, subtractive proteomics approach screen out SIS (sugar isomerase) domain protein as an attractive receptor molecule for rational drug design. This protein is involved in lipopolysaccharide biosynthesis and catalyzes the isomerization of sedoheptulose 7-phosphate in D-glycero-D-manno-heptose 7-phosphate. Molecular docking revealed compound 1 (2-(6-(N,N-dimethyl sulfamoyl)pipridin-4-yl)pyrazin-2-yl)imidazol-3-ium-1-ide) as the potent inhibitor having GOLD fitness score of 69. The complex is affirmed by half-site effect via simulation analysis. Complex stability was investigated via several approaches that follows dynamic simulation and binding energies. Trajectory analysis revealed slight change in ring positioning of inhibitor inside the active pocket during 130 ns (nanosecond). Interestingly, it was affirmed via binding interactions' density distribution. Hence, radial distribution function (RDF) inferred that SER55 and SER83 are the major residues that take part in hydrogen bonding and complex stability. Furthermore, an indigenously developed method axial frequency distribution (AFD) has revealed that ligand moved closer to the active site with both the residues SER55 and SER83 binding to the ligand. The phenomena was observed via rotating motion with respect to receptor center cavity. Thus, inhibitor movement towards allosteric site was observed at the end of simulations. Finally, binding free energy calculations by MMPB/GBSA predicts high compound affinity for the complex. Hence, findings from the current study will aid in the novel drug discovery and future experimental studies. Graphical abstract.

Indexed as

Molecular Docking SimulationMolecular Dynamics SimulationProtein DomainsAllosteric SiteCatalytic DomainChemical PhenomenaDrug DesignEnzyme InhibitorsHydrogen BondingIsomerasesMolecular StructureProtein BindingProteomicsQuantitative Structure-Activity RelationshipSugarsEnzyme InhibitorsIsomerasesSugarsLipopolysaccharideMolecular dockingMolecular dynamics simulationRadial distribution functionSubtractive proteomics

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.