Abstract:
:Grass weed populations resistant to acetyl-CoA carboxylase-inhibiting (ACCase; EC 6.4.1.2) herbicides represent a major problem for the sustainable development of modern agriculture. In the present study, extensive computational simulations, including homology modeling, molecular dynamics (MD) simulations, and molecular mechanics-Poisson-Boltzmann surface area (MM/PBSA) calculations, have been carried out to uncover the detailed molecular mechanism of Alopecurus myosuroides resistance to clodinafop, a commercial herbicide targeting ACCase. All the computational model and energetic results indicated that W374C, I388N, D425G, and G443A mutations have great effects on the conformational change of the binding pocket and the hydrogen-bonding interactions. The pi-pi interaction between ligand and the residue of Phe377 and Tyr161', playing an important contribution to the binding affinity, were decreased after mutations. In addition, the hydrogen-bonding interactions between clodinafop and the residues (Ile158' and Ala54') disappeared or decreased significantly upon mutation. As a result, the mutant-type ACCase has a lower affinity for the inhibitor binding than the wild-type enzyme, which accounts for the molecular basis of herbicidal resistance. The structural and mechanistic insights obtained from the present study will provide a valuable clue for future designing of a promising inhibitor to reduce drug resistance associated with both active and nonactive site mutations.
journal_name
J Chem Inf Modeljournal_title
Journal of chemical information and modelingauthors
Zhu XL,Ge-Fei H,Zhan CG,Yang GFdoi
10.1021/ci900174dsubject
Has Abstractpub_date
2009-08-01 00:00:00pages
1936-43issue
8eissn
1549-9596issn
1549-960Xjournal_volume
49pub_type
杂志文章abstract::In a departure from conventional chemical approaches, data-driven models of chemical reactions have recently been shown to be statistically successful using machine learning. These models, however, are largely black box in character and have not provided the kind of chemical insights that historically advanced the fie...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.9b00721
更新日期:2020-03-23 00:00:00
abstract::Small molecules targeting peripheral CB1 receptors have therapeutic potential in a variety of disorders including obesity-related, hormonal, and metabolic abnormalities, while avoiding the psychoactive effects in the central nervous system. We applied our in-house algorithm, iterative stochastic elimination, to produc...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.9b00577
更新日期:2019-09-23 00:00:00
abstract::The balance between structural stability and functional plasticity in proteins that share common three-dimensional folds is the key factor that drives protein evolvability. The ability to distinguish the parts of homologous proteins that underlie common structural organization patterns from the parts acting as regulat...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.6b00504
更新日期:2017-04-24 00:00:00
abstract::The proton conduction of transmembrane influenza virus B M2 (BM2) proton channel is possibly mediated by the membrane environment, but the detailed molecular mechanism is challenging to determine. In this work, how membrane lipid composition regulates the conformation and hydration of BM2 channel is elucidated in sili...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.0c00329
更新日期:2020-07-27 00:00:00
abstract::Screening large libraries of chemicals has been an efficient strategy to discover bioactive compounds; however a portion of the potential for success is limited to the available libraries. Synergizing combinatorial and computational chemistries has emerged as a time-efficient strategy to explore the chemical space mor...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.6b00648
更新日期:2017-03-27 00:00:00
abstract::An essential feature of all practical de novo molecule generating programs is the ability to focus the potential combinatorial explosion of grown molecules on a desired chemical space. It is a daunting task to balance the generation of new molecules with limitations on growth that produce desired features such as stab...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci9000458
更新日期:2009-07-01 00:00:00
abstract::Characterizing the variability within an ensemble of protein structures is a common requirement in structural biology and bioinformatics. With the increasing number of protein structures becoming available, there is a need for new tools capable of automating the structural comparison of large ensemble of structures. W...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci400233j
更新日期:2013-09-23 00:00:00
abstract::The Common Instrument Middleware Architecture (CIMA) aims at Grid-enabling a wide range of scientific instruments and sensors to enable easy access to and sharing and storage of data produced by these instruments and sensors. This paper describes the implementation of CIMA applied to the field of single-crystal X-ray ...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci050368l
更新日期:2006-05-01 00:00:00
abstract::In this work we present the third generation of FAst MEtabolizer (FAME 3), a collection of extra trees classifiers for the prediction of sites of metabolism (SoMs) in small molecules such as drugs, druglike compounds, natural products, agrochemicals, and cosmetics. FAME 3 was derived from the MetaQSAR database ( Pedre...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.9b00376
更新日期:2019-08-26 00:00:00
abstract::Peptides that bind to ion channels have attracted much interest as potential lead molecules for the development of new drugs and insecticides. However, the structure determination of large peptide-channel complexes using experimental methods is challenging. Thus structural models are often derived from combining exper...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.5b00529
更新日期:2016-01-25 00:00:00
abstract::The [H2X2]+ (X = Cl, Br) formula could refer to two possible stable structures, namely, the hydrogen-bonded complex and the three-electron-bonded one. In contrary to the results published by other authors, we claim that for the F-type structures the hydrogen-bonded form is the only possible one and the [HFFH]+ complex...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci600355g
更新日期:2007-05-01 00:00:00
abstract::Physicochemical atomic stereodescriptors (PAS) were implemented that represent the chirality of an atomic chiral center on the basis of empirical physicochemical properties of the ligands. The ligands are ranked according to a specific property, and the chiral center takes an S/R-like descriptor relative to that prope...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci600235w
更新日期:2006-11-01 00:00:00
abstract::Large corpora of kinase small molecule inhibitor data are accessible to public sector research from thousands of journal article and patent publications. These data have been generated employing a wide variety of assay methodologies and experimental procedures by numerous laboratories. Here we ask the question how app...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci300403k
更新日期:2013-01-28 00:00:00
abstract::Previously, stereoselective hydroxylation of α-ionone by Cytochrome P450 BM3 mutants M01 A82W and M11 L437N was observed. While both mutants hydroxylate α-ionone in a regioselective manner at the C3 position, M01 A82W catalyzes formation of trans-3-OH-α-ionone products whereas M11 L437N exhibits opposite stereoselecti...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci300243n
更新日期:2012-08-27 00:00:00
abstract::Soluble low-molecular-weight oligomers formed during the early stage of amyloid aggregation are considered the major toxic species in amyloidosis. The structure-function relationship between oligomeric assemblies and the cytotoxicity in amyloid diseases are still elusive due to the heterogeneous and transient nature o...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.0c01319
更新日期:2021-01-14 00:00:00
abstract::Dynamical properties of proteins play an essential role in their function exertion. The elastic network model (ENM) is an effective and efficient tool in characterizing the intrinsic dynamical properties encoded in biomacromolecule structures. The Gaussian network model (GNM) and anisotropic network model (ANM) are th...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.0c01178
更新日期:2021-01-26 00:00:00
abstract::Nitric oxide (NO) is an important signaling molecule produced by a family of enzymes called nitric oxide synthases (NOS). Because NO is involved in various pathological conditions, the development of potent and isoform-selective NOS inhibitors is an important challenge. In the present study, the dimer of oxygenase dom...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci100422v
更新日期:2011-06-27 00:00:00
abstract::Sixteen FDA-approved drugs were investigated to elucidate their mechanisms of action (MOAs) and clinical functions by pathway analysis based on retrieved drug targets interacting with or affected by the investigated drugs. Protein and gene targets and associated pathways were obtained by data-mining of public database...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci4005354
更新日期:2014-02-24 00:00:00
abstract::Reaction classification has important applications, and many approaches to classification have been applied. Our own algorithm tests all maximum common substructures (MCS) between all reactant and product molecules in order to find an atom mapping containing the minimum chemical distance (MCD). Recent publications hav...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci400442f
更新日期:2013-11-25 00:00:00
abstract::Structure-based virtual screening relies on classical scoring functions that often fail to reliably discriminate binders from nonbinders. In this work, we present a high-throughput protein-ligand complex molecular dynamics (MD) simulation that uses the output from AutoDock Vina to improve docking results in distinguis...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.0c00057
更新日期:2020-04-27 00:00:00
abstract::CDC25 phosphatases play critical roles in cell cycle regulation and are attractive targets for anticancer therapies. Several small non-peptide molecules are known to inhibit CDC25, but many of them appear to form a covalent bond with the enzyme or act through oxidation of the thiolate group of the catalytic cysteine. ...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci700313e
更新日期:2008-01-01 00:00:00
abstract::Histone deacetylases (HDACs) are an important class of drug targets for the treatment of cancers, neurodegenerative diseases, and other types of diseases. Virtual screening (VS) has become fairly effective approaches for drug discovery of novel and highly selective histone deacetylase inhibitors (HDACIs). To facilitat...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci5005515
更新日期:2015-02-23 00:00:00
abstract::Antimicrobial peptides (AMPs) have emerged as promising therapeutic alternatives to fight against the diverse infections caused by different pathogenic microorganisms. In this context, theoretical approaches in bioinformatics have paved the way toward the creation of several in silico models capable of predicting anti...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.5b00630
更新日期:2016-03-28 00:00:00
abstract::Traditional herbal medicine has been an inseparable part of the traditional medical science in many countries throughout history. Nowadays, the popularity of using herbal medicines in daily life, as well as clinical practices, has gradually expanded to numerous Western countries with positive impacts and acceptance. T...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.9b00826
更新日期:2020-03-23 00:00:00
abstract::There is a renewed interest in computer-aided synthesis planning, where the vast majority of approaches require the application of retrosynthetic reaction templates. Here we introduce RDChiral, an open-source Python wrapper for RDKit designed to provide consistent handling of stereochemical information in applying ret...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.9b00286
更新日期:2019-06-24 00:00:00
abstract::We introduce TICRA (transplant-insert-constrain-relax-assemble), a method for modeling the structure of unknown protein-ligand complexes using the X-ray crystal structures of homologous proteins and ligands with known activity. We present results from modeling the structures of protein kinase-inhibitor complexes using...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci100256u
更新日期:2011-01-24 00:00:00
abstract::Virtual screening is a powerful methodology to search for new small molecule inhibitors against a desired molecular target. Usually, it involves evaluating thousands of compounds (derived from large databases) in order to select a set of potential binders that will be tested in the wet-lab. The number of tested compou...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.7b00241
更新日期:2017-08-28 00:00:00
abstract::Small-molecule protein docking is an essential tool in drug design and to understand molecular recognition. In the present work we introduce FlexAID, a small-molecule docking algorithm that accounts for target side-chain flexibility and utilizes a soft scoring function, i.e. one that is not highly dependent on specifi...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/acs.jcim.5b00078
更新日期:2015-07-27 00:00:00
abstract::Cytochrome P450 3A4 metabolizes nearly 50% of the drugs currently in clinical use with a broad range of substrate specificity. Early prediction of metabolites of xenobiotic compounds is crucial for cost efficient drug discovery and development. We developed a new combined model, MLite, for the prediction of regioselec...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci7003576
更新日期:2008-03-01 00:00:00
abstract::Computational approaches to fragment-based drug design (FBDD) can complement experiments and facilitate the identification of potential hot spots along the protein surface. However, the evaluation of computational methods for mapping binding sites frequently focuses upon the ability to reproduce crystallographic coord...
journal_title:Journal of chemical information and modeling
pub_type: 杂志文章
doi:10.1021/ci300430v
更新日期:2013-02-25 00:00:00