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In Silico Screening and Molecular Dynamics Simulation of Potential Anti-Malarial Agents from Zingiberaceae as Potential Plasmodium falciparum Lactate Dehydrogenase (PfLDH) Enzyme Inhibitors.

ABSTRACT: Malaria continues to be a major public health issue in a number of countries, particularly in tropical regions-the emergence of drug-resistant Plasmodium falciparum encourages new drug discovery research. The key to Plasmodium falciparum survival is energy production up to 100 times greater than other parasites, primarily via the PfLDH. This study targets PfLDH with natural bioactive compounds from the Zingiberaceae family through molecular docking and molecular dynamic studies. Sulcanal, quercetin, shogosulfonic acid C, galanal A and naringenin are the Top 5 compounds with a lower binding energy value than chloroquine, which was used as a control in this study. By binding to NADH and substrate binding site residues, the majority of them are expected to inhibit pyruvate conversion to lactate and NAD⁺ regeneration. When compared to sulcanal and control drugs, the molecular dynamics (MD) simulation study indicated that quercetin may be the most stable molecule when interacting with PfLDH.

SUBMITTER: Heikal MF

PROVIDER: S-EPMC10735256 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature

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In Silico Screening and Molecular Dynamics Simulation of Potential Anti-Malarial Agents from Zingiberaceae as Potential Plasmodium falciparum Lactate Dehydrogenase (PfLDH) Enzyme Inhibitors.

Heikal Muhammad Fikri MF Putra Wira Eka WE Sustiprijatno Rifa'i Muhaimin M Hidayatullah Arief A Ningsih Febby Nurdiya FN Widiastuti Diana D Shuib Adawiyah Suriza AS Zulfiani Baiq Feby BF Hanasepti Afrabias Firyal AF

Tropical life sciences research 20230601 2

Malaria continues to be a major public health issue in a number of countries, particularly in tropical regions-the emergence of drug-resistant Plasmodium falciparum encourages new drug discovery research. The key to Plasmodium falciparum survival is energy production up to 100 times greater than other parasites, primarily via the PfLDH. This study targets PfLDH with natural bioactive compounds from the Zingiberaceae family through molecular docking and molecular dynamic stud ...[more]

PMID: 38144376

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Project description:BackgroundAntigen-detecting rapid diagnostic tests (RDTs) have been recommended by the World Health Organization for use in remote areas to improve malaria case management. Lactate dehydrogenase (LDH) of Plasmodium falciparum is one of the main parasite antigens employed by various commercial RDTs. It has been hypothesized that the poor detection of LDH-based RDTs is attributed in part to the sequence diversity of the gene. To test this, the present study aimed to investigate the genetic diversity of the P. falciparum ldh gene in Thailand and to construct the map of LDH sequence diversity in P. falciparum populations worldwide.MethodsThe ldh gene was sequenced for 50 P. falciparum isolates in Thailand and compared with hundreds of sequences from P. falciparum populations worldwide. Several indices of molecular variation were calculated, including the proportion of polymorphic sites, the average nucleotide diversity index (π), and the haplotype diversity index (H). Tests of positive selection and neutrality tests were performed to determine signatures of natural selection on the gene. Mean genetic distance within and between species of Plasmodium ldh was analysed to infer evolutionary relationships.ResultsNucleotide sequences of P. falciparum ldh could be classified into 9 alleles, encoding 5 isoforms of LDH. L1a was the most common allelic type and was distributed in P. falciparum populations worldwide. Plasmodium falciparum ldh sequences were highly conserved, with haplotype and nucleotide diversity values of 0.203 and 0.0004, respectively. The extremely low genetic diversity was maintained by purifying selection, likely due to functional constraints. Phylogenetic analysis inferred the close genetic relationship of P. falciparum to malaria parasites of great apes, rather than to other human malaria parasites.ConclusionsThis study revealed the global genetic variation of the ldh gene in P. falciparum, providing knowledge for improving detection of LDH-based RDTs and supporting the candidacy of LDH as a therapeutic drug target.

Dataset Information

In Silico Screening and Molecular Dynamics Simulation of Potential Anti-Malarial Agents from Zingiberaceae as Potential Plasmodium falciparum Lactate Dehydrogenase (PfLDH) Enzyme Inhibitors.

Publications

In Silico Screening and Molecular Dynamics Simulation of Potential Anti-Malarial Agents from <i>Zingiberaceae</i> as Potential <i>Plasmodium falciparum</i> Lactate Dehydrogenase (PfLDH) Enzyme Inhibitors.

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