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Molecular modeling of a series of HIV reverse transcriptase (RT) non-nucleoside inhibitors (2-amino-6-arylsulfonylbenzonitriles and their thio and sulfinyl congeners) was carried out by comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) approaches. Docking simulations were employed to position the(More)
Ribonucleic acids (RNAs) have only recently been viewed as a target for small-molecules drug discovery. Aminoglycoside compounds are antibiotics which bind the ribosomal A site (16S fragment) and cause misreading of the bacterial genetic code and inhibit translocation. In this work, a complete molecular modeling study is done for 16 newly derived(More)
On the basis of the structures of small-molecule hits targeting the HIV-1 gp41, N-(4-carboxy-3-hydroxy)phenyl-2,5-dimethylpyrrole (2, NB-2), and N-(3-carboxy-4-chloro)phenylpyrrole (A(1), NB-64), 42 N-carboxyphenylpyrrole derivatives in two categories (A and B series) were designed and synthesized. We found that 11 compounds exhibited promising anti-HIV-1(More)
Activating germline fibroblast growth factor receptor 3 (FGFR3) mutations cause achondroplasia (ACH), the most common form of human dwarfism and a spectrum of skeletal dysplasias. FGFR3 is a tyrosine kinase receptor and constitutive FGFR3 activation impairs endochondral ossification and triggers severe disorganization of the cartilage with shortening of(More)
Arylamine N-acetyltransferase (NAT) enzymes are found in a broad range of eukaryotes and prokaryotes. There is increasing evidence that NAT enzymes could contribute to antibiotic resistance in pathogenic bacteria such as Mycobacterium tuberculosis. Nocardia farcinica is an opportunistic human pathogen that causes pulmonary infections (nocardiosis) with(More)
A theoretical investigation was carried out on the retention and separation of enantiomeric molecules including nonsteroidal anti-inflammatory drugs, anti-neoplastic compounds and N-derivatized amino acids by capillary electrophoresis using macrocyclic antibiotics, a new class of chiral selectors, as stationary phase. Firstly docking methods were used to(More)
BMS-378806 (BMS-806) is a small molecule that blocks the binding of host-cell CD4 with viral gp120 protein and therefore inhibits the first steps of HIV-1 infection. Recently, 36 analogs compounds of BMS-806 were synthesized and their biological activity evaluated. Based on these compounds, a molecular docking was firstly performed with BMS-806 to the gp120(More)
Molecular dynamics (MD) simulations in water environment were carried out on the HIV-1 reverse transcriptase (RT), and its complexes with one representative of each of three series of inhibitors: 2-amino-6-arylsulphonylbenzonitriles and their thio and sulphinyl congeners. Molecular Mechanics Generalized Born Surface Area (MM-GBSA) was used to calculate the(More)
The first anti-HIV drug, zidovudine (AZT), was approved by the FDA a quarter of a century ago, in 1985. Currently, anti-HIV drug-combination therapies only target HIV-1 protease and reverse transcriptase. Unfortunately, most of these molecules present numerous shortcomings such as viral resistances and adverse effects. In addition, these drugs are involved(More)
2D-, 3D-QSAR and docking studies were carried out on 23 pyrrole derivatives, to model their HIV-1 gp41 inhibitory activities. The 2D, 3D-QSAR studies were performed using CODESSA software package and comparative molecular field analysis (CoMFA) technique, respectively. The CODESSA five-descriptor model has a correlation coefficient R(2)=0.825 and a standard(More)