• Title/Summary/Keyword: Chemogenomics

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Chemogenomics Profiling of Drug Targets of Peptidoglycan Biosynthesis Pathway in Leptospira interrogans by Virtual Screening Approaches

  • Bhattacharjee, Biplab;Simon, Rose Mary;Gangadharaiah, Chaithra;Karunakar, Prashantha
    • Journal of Microbiology and Biotechnology
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    • v.23 no.6
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    • pp.779-784
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    • 2013
  • Leptospirosis is a worldwide zoonosis of global concern caused by Leptospira interrogans. The availability of ligand libraries has facilitated the search for novel drug targets using chemogenomics approaches, compared with the traditional method of drug discovery, which is time consuming and yields few leads with little intracellular information for guiding target selection. Recent subtractive genomics studies have revealed the putative drug targets in peptidoglycan biosynthesis pathways in Leptospira interrogans. Aligand library for the murD ligase enzyme in the peptidoglycan pathway has also been identified. Our approach in this research involves screening of the pre-existing ligand library of murD with related protein family members in the putative drug target assembly in the peptidoglycan biosynthesis pathway. A chemogenomics approach has been implemented here, which involves screening of known ligands of a protein family having analogous domain architecture for identification of leads for existing druggable protein family members. By means of this approach, one murC and one murF inhibitor were identified, providing a platform for developing an anti-leptospirosis drug targeting the peptidoglycan biosynthesis pathway. Given that the peptidoglycan biosynthesis pathway is exclusive to bacteria, the in silico identified mur ligase inhibitors are expected to be broad-spectrum Gram-negative inhibitors if synthesized and tested in in vitro and in vivo assays.

Combinatorial Library and Chemogenomics Approach: Discovery of Protein Secondary Structure Mimetic Small Molecule Inhibitors of Tryptase and Ref-l for Asthma

  • Moon, Sung-Hwan
    • Proceedings of the PSK Conference
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    • 2003.10a
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    • pp.92-92
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    • 2003
  • The drug discovery landscape is changing rapidly in the post-genomic era. Mapping of the human genome has led to an abundance of potential drug targets. Drug discovery times and costs can be significantly reduced by developing methods for high throughput target identification/ validation, multiplexed assay development and high efficient combinatorial chemistry. (omitted)

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Chemical kinomics: a powerful strategy for target deconvolution

  • Kim, Do-Hee;Sim, Tae-Bo
    • BMB Reports
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    • v.43 no.11
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    • pp.711-719
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    • 2010
  • Kinomics is an emerging and promising approach for deciphering kinomes. Chemical kinomics is a discipline of chemical genomics that is also referred to as "chemogenomics", which is derived from chemistry and biology. Chemical kinomics has become a powerful approach to decipher complicated phosphorylation-based cellular signaling networks with the aid of small molecules that modulate kinase functions. Moreover, chemical kinomics has played a pivotal role in the field of kinase drug discovery as it enables identification of new molecular targets of small molecule kinase modulators and/or exploitation of novel functions of known kinases and has also provided novel chemical entities as hit/lead compounds. In this short review, contemporary chemical kinomics technologies such as activity-based protein profiling, T7 kinasetagged phages, kinobeads, three-hybrid systems, fluorescenttagged kinase binding assays, and chemical genomic profiling are discussed along with a novel allosteric Bcr-Abl kinase inhibitor (GNF-2/GNF-5) as a successful application of chemical kinomics approaches.

Network Pharmacology: Prediction of Astragalus Membranaceus' and Cornus Officinalis' Active Ingredients and Potential Targets to Diabetic Nephropathy (네트워크 약리학을 통한 당뇨병성 신병증에서의 황기와 산수유의 활성 성분 및 잠재 타겟 예측)

  • Lee, Keun-Hyeun;Rhee, Harin;Jeong, Han-Sol;Shin, Sang Woo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.31 no.6
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    • pp.313-327
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    • 2017
  • The purpose of this study is to predict the effects of macroscopic and integrative therapies by finding active ingredients, potential targets of Astragalus membranaceus (Am) and Cornus officinalis (Co) for diabetic nephropathy. We have constructed network pharmacology-based systematic and network methodology by system biology, chemical structure, chemogenomics. We found several active ingredients of Astragalus membranaceus (Am) and Cornus officinalis (Co) that were speculated to bind to specific receptors which had been known to have a role in the progression of diabetic nephropathy. Four components of Am and eleven components of Co could bind to iNOS; two ingredients of Am and six ingredients of Co could docking to cGB-PDE; one component of Am and nine components of Co could bind to ACE; three ingredients of Co with neprilysin; three components of Co with ET-1 receptor; four ingredients of Am and fourteen ingredients of Co with mineralocorticoid receptor; one component of Am and seven components of Co with interstitial collagenase; one ingredient of Am and ten ingredients of Co with membrane primary amine oxidase; one component of Am and four components of Co with JAK2; two ingredients of Am and one ingredient of Co with MAPK 12; one component of Am and five components of Co could docking to TGF-beta receptor type-1. From this work we could speculate that the possible mechanisms of Am and Co for diabetic nephropathy are anti-inflammatory, antioxidant and antihypertensive effects.