نتایج جستجو برای: comfa

تعداد نتایج: 358  

Journal: :Molecules 2004
J D Carballeira M A Quezada E Alvarez J V Sinisterra

After a hierarchical microbial screening process, new microorganisms have been discovered that act as biocatalysts for the stereoselective oxidation of secondary alcohols or for ketone reduction. Oxidation activity is more widespread in yeasts and bacteria, while actinomycetes, filamentous fungi and yeasts present the highest reduction activities. QSAR-3D/CoMFA is an adequate technique to desig...

Journal: :Journal of medicinal chemistry 2001
I A Doytchinova D R Flower

A set of 102 peptides with affinity for the class I MHC HLA-A0201 molecule was subjected to three-dimensional quantitative structure-affinity relationship (3D QSAR) studies using comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA). A test set of 50 peptides was used to determine the predictive value of the models. The CoMFA models gave q(2...

2010
Ping Lan Zhi-Jian Huang Jun-Rong Sun Wei-Min Chen

The p38α mitogen-activated protein kinase (MAPK) has become an attractive target for the treatment of many diseases such as rheumatoid arthritis, inflammatory bowel disease and Crohn's disease. In this paper, 3D-QSAR and molecular docking studies were performed on 59 p38α MAPK inhibitors. Comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA)...

2010
Kyaw Zeyar Myint Xiang-Qun Xie

This paper provides an overview of recently developed two dimensional (2D) fragment-based QSAR methods as well as other multi-dimensional approaches. In particular, we present recent fragment-based QSAR methods such as fragment-similarity-based QSAR (FS-QSAR), fragment-based QSAR (FB-QSAR), Hologram QSAR (HQSAR), and top priority fragment QSAR in addition to 3D- and nD-QSAR methods such as comp...

2012
Guanhong Xu Yanyan Chu Nan Jiang Jing Yang Fei Li

Androgen receptor antagonists have been proved to be effective anti-prostate cancer agents. 3D-QSAR and Molecular docking methods were performed on curcumin derivatives as androgen receptor antagonists. The bioactive conformation was explored by docking the potent compound 29 into the binding site of AR. The constructed Comparative Molecular Field Analysis (CoMFA) and Comparative Similarity Ind...

2008
Káthia M Honório Lívia B Salum Richard C Garratt Igor Polikarpov Adriano D Andricopulo

Liver X receptor (LXR) is an attractive drug target for the development of novel therapeutic agents for the treatment of dyslipidaemia and cholestasis. In the present work, comparative molecular field analysis (CoMFA) and hologram quantitative structure-activity relationship (HQSAR) studies were conducted on a series of potent LXR ligands. Significant correlation coefficients (CoMFA, r(2) = 0.9...

Journal: :Bioorganic & medicinal chemistry letters 2008
Serdar Durdagi Thomas Mavromoustakos Manthos G Papadopoulos

For the first time, a set of experimentally reported [60] fullerene derivatives were subjected to the 3D-QSAR/CoMFA and CoMSIA studies. The aim of this study is to propose a series of novel [60] fullerene-based inhibitors with optimal binding affinity for the HIV-1 PR enzyme. The position of the template molecule at the cavity of HIV-1 PR was optimized and 3D QSAR models were developed. Relativ...

2013
Ying-Hsin Chang Jun-Yan Chen Chiou-Yi Hor Yu-Chung Chuang Chang-Biau Yang Chia-Ning Yang

Human estrogen receptor (ER) isoforms, ERα and ERβ, have long been an important focus in the field of biology. To better understand the structural features associated with the binding of ERα ligands to ERα and modulate their function, several QSAR models, including CoMFA, CoMSIA, SVR, and LR methods, have been employed to predict the inhibitory activity of 68 raloxifene derivatives. In the SVR ...

Journal: :Pharmaceutical fronts 2022

Abstract Anaplastic lymphoma kinase (ALK) is a promising target for the treatment of non-small cell lung cancer. Under crizotinib treatment, drug resistance and progressive disease appeared after point mutations arising in domain ALK. Second-generation ALK inhibitors can solve deficiencies first generation, especially cancer chemotherapy. Ceritinib (LDK378), pyrimidine derivative, example, inhi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده علوم 1389

چکیده مطالعهqsar سه بعدی بر روی 2-آریل بنزوکسازول به عنوان بازدارنده های cetp انجام گرفت و روش های comfa، comfa rf وcomsia برای تعیین فاکتورهایی که در بروز فعالیت در این ترکیبات ضرورت دارد مورد استفاده قرار گرفت. در این مطالعه مولکول ها با روش های استاندارد در نرم افزار sybyl بهینه سازی انرژی بر روی آنها انجام شد و روشdistil به عنوان روش نهایی برای تراز کردن مولکول ها در نظر گرفته شد. بهترین ج...

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