scholarly journals Structure-Based Discovery of ABCG2 Inhibitors: A Homology Protein-Based Pharmacophore Modeling and Molecular Docking Approach

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3115
Author(s):  
Minh-Tri Le ◽  
Viet-Nham Hoang ◽  
Dac-Nhan Nguyen ◽  
Thi-Hoang-Linh Bui ◽  
Thien-Vy Phan ◽  
...  
Keyword(s):  
Molecular Docking ◽  
Pharmacophore Modeling ◽  
Multi Drug Resistance ◽  
Toxic Substances ◽  
Drug Bioavailability ◽  
Reverse Transport ◽  
Docking Method ◽  
Docking Approach ◽  
Pharmacophore Models ◽  
Molecular Docking Method

ABCG2 is an ABC membrane protein reverse transport pump, which removes toxic substances such as medicines out of cells. As a result, drug bioavailability is an unexpected change and negatively influences the ADMET (absorption, distribution, metabolism, excretion, and toxicity), leading to multi-drug resistance (MDR). Currently, in spite of promising studies, screening for ABCG2 inhibitors showed modest results. The aim of this study was to search for small molecules that could inhibit the ABCG2 pump. We first used the WISS MODEL automatic server to build up ABCG2 homology protein from 655 amino acids. Pharmacophore models, which were con-structed based on strong ABCG2 inhibitors (IC50 < 1 μM), consist of two hydrophobic (Hyd) groups, two hydrogen bonding acceptors (Acc2), and an aromatic or conjugated ring (Aro|PiR). Using molecular docking method, 714 substances from the DrugBank and 837 substances from the TCM with potential to inhibit the ABCG2 were obtained. These chemicals maybe favor synthesized or extracted and bioactivity testing.

scholarly journals Discovery of novel potential KIT inhibitors for the treatment of gastrointestinal stromal tumor

2021 ◽  
Vol 16 (1) ◽  
pp. 303-310
Author(s):  
Lili Jiang ◽  
Zhongmin Zhang ◽  
Zhen Wang ◽  
Yong Liu
Keyword(s):  
Molecular Docking ◽  
Gastrointestinal Stromal Tumor ◽  
Pharmacophore Modeling ◽  
Stromal Tumor ◽  
Strong Hydrogen Bond ◽  
Ligand Complex ◽  
Hydrogen Bond Interaction ◽  
Mutant Proteins ◽  
Docking Simulations ◽  
Pharmacophore Models

Abstract Numerous inhibitors of tyrosine-protein kinase KIT, a receptor tyrosine kinase, have been explored as a viable therapy for the treatment of gastrointestinal stromal tumor (GIST). However, drug resistance due to acquired mutations in KIT makes these drugs almost useless. The present study was designed to screen the novel inhibitors against the activity of the KIT mutants through pharmacophore modeling and molecular docking. The best two pharmacophore models were established using the KIT mutants’ crystal complexes and were used to screen the new compounds with possible KIT inhibitory activity against both activation loop and ATP-binding mutants. As a result, two compounds were identified as potential candidates from the virtual screening, which satisfied the potential binding capabilities, molecular modeling characteristics, and predicted absorption, distribution, metabolism, excretion, toxicity (ADMET) properties. Further molecular docking simulations showed that two compounds made strong hydrogen bond interaction with different KIT mutant proteins. Our results indicated that pharmacophore models based on the receptor–ligand complex had excellent ability to screen KIT inhibitors, and two compounds may have the potential to develop further as the future KIT inhibitors for GIST treatment.

scholarly journals Bhringraj Derived Phytochemicals against Pneumonia

2020 ◽  
pp. 93-96
Author(s):  
Debajani Tripathy ◽  
Chandana Adhikari ◽  
Mukundjee Pandey ◽  
Dipankar Bhattacharayay
Keyword(s):  
Molecular Docking ◽  
Life Cycle ◽  
Glutamic Acid ◽  
Interaction Energy ◽  
Plant Extract ◽  
Klebsiella Pneumonia ◽  
Discovery Studio ◽  
Docking Method ◽  
Dehydrogenase Enzyme ◽  
Molecular Docking Method

Phytochemicals from Bhringaraj plant extract are traditionally used to cure Pneumonia. It is caused by Klebsiella pneumonia. Molecular docking method applied using “Biovia Discovery Studio”. “High positive values of -CDOCKER energy and -CDOCKER interaction energy” suggested that glutamic acid can effectively deactivate the dehydrogenase enzyme, thereby interrupting the life cycle of the organism.

scholarly journals Trigonella foenum-graecum Derived Phytochemicals against Tuberculosis

2020 ◽  
pp. 121-124
Author(s):  
Bidyashree Tripathy ◽  
Elina Sahoo ◽  
Sidhartha Ray ◽  
Soumya Jal ◽  
Dipankar Bhattacharyay
Keyword(s):  
Molecular Docking ◽  
Life Cycle ◽  
Interaction Energy ◽  
Dihydrofolate Reductase ◽  
Plant Extract ◽  
Discovery Studio ◽  
Trigonella Foenum Graecum ◽  
Docking Method ◽  
Molecular Docking Method

Phytochemicals from Trigonella foenum-graecum plant extract are traditionally used to cure Tuberculosis. Molecular docking method applied using “Biovia Discovery Studio”. “High positive values of -CDOCKER energy and -CDOCKER interaction energy” suggested that this plant extract can effectively deactivate the dihydrofolate reductase enzyme thereby interrupting the life cycle of the organism.

scholarly journals Michelia champaca L. Derived Phytochemicals against Peptidase Do of Bordetella pertussis Causing Cough

2020 ◽  
pp. 133-135
Author(s):  
Sanjeeb Kumar Dash ◽  
Sidhartha Ray ◽  
Smruti Ranjan Behera ◽  
Soumya Jal ◽  
Dipankar Bhattacharyay
Keyword(s):  
Molecular Docking ◽  
Life Cycle ◽  
Interaction Energy ◽  
Plant Extract ◽  
Bordetella Pertussis ◽  
Discovery Studio ◽  
Docking Method ◽  
Michelia Champaca ◽  
Molecular Docking Method

Phytochemicals from Michelia champaca L. plant extract are traditionally used to cure cough.  Cough can be caused by many reasons. Caugh can be caused by the infection of Bordetella pertussis. The objective of the study is to identify the phytochemical of Michelia champaca capable of curing cough. Molecular docking method applied using “Biovia Discovery Studio”. “High positive values of -CDOCKER energy and -CDOCKER interaction energy” suggested that magnoflorine can effectively deactivate the peptidase Do enzyme which will interrupt the life cycle of the microorganism and inhibit the multiplication.

scholarly journals Capsicum anum L. Derived Phytochemicals against Haemophilus influenzae Causing Bronchitis

2020 ◽  
pp. 100-103
Author(s):  
Debadatta Nayak ◽  
Debesh Kumar Hota ◽  
Tophani Sahu ◽  
Soumya Jal ◽  
Dipankar Bhattacharyay
Keyword(s):  
Molecular Docking ◽  
Life Cycle ◽  
Haemophilus Influenzae ◽  
Interaction Energy ◽  
Plant Extract ◽  
Haemophilus Influenza ◽  
Discovery Studio ◽  
Docking Method ◽  
Coa Hydrolase ◽  
Molecular Docking Method

Phytochemicals from Capsicum anum L. plant extract are traditionally used to cure bronchitis. Bronchitis is caused by Haemophilus influenzae. Molecular docking method applied using “Biovia Discovery Studio”. “High positive values of -CDOCKER energy and -CDOCKER interaction energy” suggested that myrcetin and quercetin can effectively deactivate the Palmitoyl-CoA hydrolase enzyme thereby interrupting the life cycle of Haemophilus influenza.

scholarly journals 2D-QSAR and docking study of a series of coumarin derivatives as inhibitors of CDK (anticancer activity) with an application of the molecular docking method

Heliyon ◽  
2020 ◽  
Vol 6 (8) ◽  
pp. e04514
Author(s):  
Rania Kasmi ◽  
Elghalia Hadaji ◽  
Oussama Chedadi ◽  
Abdellah El Aissouq ◽  
Mohammed Bouachrine ◽  
...  
Keyword(s):  
Molecular Docking ◽  
Anticancer Activity ◽  
Docking Study ◽  
Coumarin Derivatives ◽  
2D Qsar ◽  
Docking Method ◽  
Molecular Docking Method
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