Bacterial Polyphosphate Kinases Revisited: Role in Pathogenesis and Therapeutic Potential

2019 ◽  
Vol 20 (3) ◽  
pp. 292-301 ◽  
Author(s):  
Lalit Kumar Gautam ◽  
Prince Sharma ◽  
Neena Capalash
Keyword(s):  
Drug Target ◽  
Bacterial Infections ◽  
Therapeutic Potential ◽  
Wide Distribution ◽  
Medical Community ◽  
Polyphosphate Kinase ◽  
Potential Drug Target ◽  
Potential Drug ◽  
Resistant Strains ◽  
Structural Aspects

Bacterial infections have always been an unrestrained challenge to the medical community due to the rise of multi-drug tolerant and resistant strains. Pioneering work on Escherichia coli polyphosphate kinase (PPK) by Arthur Kornberg has generated great interest in this polyphosphate (PolyP) synthesizing enzyme. PPK has wide distribution among pathogens and is involved in promoting pathogenesis, stress management and susceptibility to antibiotics. Further, the absence of a PPK orthologue in humans makes it a potential drug target. This review covers the functional and structural aspects of polyphosphate kinases in bacterial pathogens. A description of molecules being designed against PPKs has been provided, challenges associated with PPK inhibitor design are highlighted and the strategies to enable development of efficient drug against this enzyme have also been discussed.

scholarly journals Axin, the classic scaffold protein of Wnt/β-catenin signalling as a potential drug-target for vitiligo

2020 ◽  
Author(s):  
Duozhi Chen ◽  
Shirui Fan ◽  
Xueying Lu ◽  
Chenxu Jing ◽  
Deng Zang ◽  
...  
Keyword(s):  
Drug Target ◽  
Therapeutic Strategy ◽  
Experimental Approach ◽  
Regulatory Mechanism ◽  
Therapeutic Potential ◽  
Site Directed Mutagenesis ◽  
Directed Mutagenesis ◽  
Potential Drug Target ◽  
Potential Drug ◽  
Lead Compounds

Background and Purpose: Humans have been fighting vitiligo for centuries but still being inferior due to the lack of efficiency drugs and therapies. While some research has implied the therapeutic potential of Wnt/β-catenin signalling on curing vitiligo but correlation mechanism is not clear and no Wnt-specific anti-vitiligo drug has been reported. Here, We identified how vitiligo could be treated by regulating Wnt and two lead compounds of new anti-vitiligo drugs have been found. Experimental Approach: Wnt agonists were rational synthesized and then be evaluated their effects on vitiligo in B16 cells and C57B/L mouse. Furthermore, Co-IP and Site-directed mutagenesis were employed to indicate the mechanism and the target of the compounds. Key Results: HCJA121 and HCJA404 could significantly promote the synthesis of melanin, restore the pigmented function of skin, and improve the symptoms of vitiligo. Mechanism studies indicated that HCJA121 and HCJA404 target the DAX domain of Axin by binding to LYS781 and LEU784 then potentiate the Axin-LRP6 association and eventually promoted melanogenesis. Conclusions and Implications: These findings imply an alternative regulatory mechanism of melanogenesis and the Axin protein could be a new target for anti-vitiligo agents which reveal a therapeutic strategy for vitiligo. Besides, HCJA121 and HCJA404 may represent potential compounds for vitiligo treatment.

scholarly journals Large scale enterohemorrhagic E coli population genomic analysis using whole genome typing reveals recombination clusters and potential drug target

F1000Research ◽  
2019 ◽  
Vol 8 ◽  
pp. 33
Author(s):  
DJ Darwin Bandoy
Keyword(s):  
Drug Discovery ◽  
Drug Target ◽  
Large Scale ◽  
Genomic Analysis ◽  
Wide Distribution ◽  
Whole Genome ◽  
Potential Drug Target ◽  
Potential Drug ◽  
New Paradigm ◽  
Population Genomic

Enterohemorrhagic Escherichia coli continues to be a significant public health risk. With the onset of next generation sequencing, whole genome sequences require a new paradigm of analysis relevant for epidemiology and drug discovery. A large-scale bacterial population genomic analysis was applied to 702 isolates of serotypes associated with EHEC resulting in five pangenome clusters. Serotype incongruence with pangenome types suggests recombination clusters. Core genome analysis was performed to determine the population wide distribution of sdiA as potential drug target. Protein modelling revealed nonsynonymous variants are notably absent in the ligand binding site for quorum sensing, indicating that population wide conservation of the sdiA ligand site can be targeted for potential prophylactic purposes. Applying pathotype-wide pangenomics as a guide for determining evolution of pharmacophore sites is a potential approach in drug discovery.

scholarly journals Large scale enterohemorrhagic E coli population genomic analysis using whole genome typing reveals recombination clusters and potential drug target

F1000Research ◽  
2020 ◽  
Vol 8 ◽  
pp. 33
Author(s):  
DJ Darwin Bandoy
Keyword(s):  
Drug Discovery ◽  
Drug Target ◽  
Large Scale ◽  
Genomic Analysis ◽  
Wide Distribution ◽  
Whole Genome ◽  
Potential Drug Target ◽  
Potential Drug ◽  
New Paradigm ◽  
Population Genomic

Enterohemorrhagic Escherichia coli continues to be a significant public health risk. With the onset of next generation sequencing, whole genome sequences require a new paradigm of analysis relevant for epidemiology and drug discovery. A large-scale bacterial population genomic analysis was applied to 702 isolates of serotypes associated with EHEC resulting in five pangenome clusters. Serotype incongruence with pangenome types suggests recombination clusters. Core genome analysis was performed to determine the population wide distribution of sdiA as potential drug target. Protein modelling revealed nonsynonymous variants are notably absent in the ligand binding site for quorum sensing, indicating that population wide conservation of the sdiA ligand site can be targeted for potential prophylactic purposes. Applying pathotype-wide pangenomics as a guide for determining evolution of pharmacophore sites is a potential approach in drug discovery.

The Prokaryotic FAD Synthetase Family: A Potential Drug Target

2013 ◽  
Vol 19 (14) ◽  
pp. 2637-2648 ◽  
Author(s):  
Ana Serrano ◽  
Patricia Ferreira ◽  
Marta Martinez-Julvez ◽  
Milagros Medina
Keyword(s):  
Drug Target ◽  
Potential Drug Target ◽  
Potential Drug

Molecular Docking with Trehalose-6 Phosphate Phosphatase: A Potential Drug Target of Filaral Parasite ‘Brugia malayi’

2011 ◽  
Vol 8 (4) ◽  
pp. 363-370 ◽  
Author(s):  
Lakshminarayanan Karthik ◽  
Palayam Malathy ◽  
Annie Trinitta ◽  
Krishnasamy Gunasekaran
Keyword(s):  
Molecular Docking ◽  
Drug Target ◽  
Brugia Malayi ◽  
Potential Drug Target ◽  
Potential Drug

scholarly journals Activity-based protein profiling reveals deubiquitinase and aldehyde dehydrogenase targets of a cyanopyrrolidine probe

2021 ◽  
Author(s):  
Nattawadee Panyain ◽  
Aurélien Godinat ◽  
Aditya Raymond Thawani ◽  
Sofía Lachiondo-Ortega ◽  
Katie Mason ◽  
...  
Keyword(s):  
Aldehyde Dehydrogenase ◽  
Lung Fibrosis ◽  
Drug Target ◽  
Protein Profiling ◽  
Deubiquitinating Enzyme ◽  
Potential Drug Target ◽  
Potential Drug ◽  
Bona Fide ◽  
Carboxy Terminal

Ubiquitin carboxy-terminal hydrolase L1 (UCHL1), a deubiquitinating enzyme (DUB), is a potential drug target in various cancers, and liver and lung fibrosis. However, bona fide functions and substrates of UCHL1...

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