Abstract：
:An evolutionary algorithm was developed for fragment-based de novo design of molecules (TOPAS, TOPology-Assigning System). This stochastic method aims at generating a novel molecular structure mimicking a template structure. A set of approximately 25,000 fragment structures serves as the building block supply, which were obtained by a straightforward fragmentation procedure applied to 36,000 known drugs. Eleven reaction schemes were implemented for both fragmentation and building block assembly. This combination of drug-derived building blocks and a restricted set of reaction schemes proved to be a key for the automatic development of novel, synthetically tractable structures. In a cyclic optimization process, molecular architectures were generated from a parent structure by virtual synthesis, and the best structure of a generation was selected as the parent for the subsequent TOPAS cycle. Similarity measures were used to define 'fitness', based on 2D-structural similarity or topological pharmacophore distance between the template molecule and the variants. The concept of varying library 'diversity' during a design process was consequently implemented by using adaptive variant distributions. The efficiency of the design algorithm was demonstrated for the de novo construction of potential thrombin inhibitors mimicking peptide and non-peptide template structures.
journal_name
J Comput Aided Mol Desjournal_title
Journal of computer-aided molecular designauthors
Schneider G,Lee ML,Stahl M,Schneider Pdoi
10.1023/a:1008184403558subject
Has Abstractpub_date
2000-07-01 00:00:00pages
487-94issue
5eissn
0920-654Xissn
1573-4951journal_volume
14pub_type
杂志文章abstract：:We introduce the QuanSA method for inducing physically meaningful field-based models of ligand binding pockets based on structure-activity data alone. The method is closely related to the QMOD approach, substituting a learned scoring field for a pocket constructed of molecular fragments. The problem of mutual ligand a...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-018-0126-x
更新日期：2018-07-01 00:00:00
abstract：:Dengue and related flaviviruses represent a significant global health threat. The envelope glycoprotein E mediates virus attachment to a host cell and the subsequent fusion of viral and host cell membranes. The fusion process is driven by conformational changes in the E protein and is an essential step in the virus li...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-009-9263-6
更新日期：2009-06-01 00:00:00
abstract：:Chemical space networks (CSNs) have recently been introduced as an alternative to other coordinate-free and coordinate-based chemical space representations. In CSNs, nodes represent compounds and edges pairwise similarity relationships. In addition, nodes are annotated with compound property information such as biolog...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-015-9872-1
更新日期：2015-10-01 00:00:00
abstract：:AstexViewer is a Java molecular graphics program that can be used for visualisation in many aspects of structure-based drug design. This paper describes its functionality, implementation and examples of its use. The program can run as an Applet in a web browser allowing structures to be displayed without installing ad...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1023/a:1023813504011
更新日期：2002-12-01 00:00:00
abstract：:Using the X-ray crystal structure of the human topoisomerase I (top1) - DNA cleavable complex and the Sybyl software package, we have developed a general model for the ternary cleavable complex formed with four protoberberine alkaloids differing in the substitution on the terminal phenyl rings and covering a broad ran...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-004-7878-1
更新日期：2004-12-01 00:00:00
abstract：:The Drug Design Data Resource (D3R) ran Grand Challenge 2015 between September 2015 and February 2016. Two targets served as the framework to test community docking and scoring methods: (1) HSP90, donated by AbbVie and the Community Structure Activity Resource (CSAR), and (2) MAP4K4, donated by Genentech. The challeng...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-016-9946-8
更新日期：2016-09-01 00:00:00
abstract：:We apply an atomistic model of passive membrane permeability to a series of weakly basic drugs. The computational model uses conformational sampling in combination with an all-atom force field and implicit solvent model to estimate relative passive membrane permeabilities. The model does not require the use of trainin...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-007-9141-z
更新日期：2007-12-01 00:00:00
abstract：:Molecular modeling techniques and three-dimensional (3D) pattern analysis have been used to investigate the chemical and steric properties of compounds that inhibit transport of the plant hormone auxin. These compounds bind to a specific site on the plant plasma membrane characterized by its affinity for the herbicide...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/BF00126666
更新日期：1991-08-01 00:00:00
abstract：:In the present work we have modeled the Michaelis complex of the cyclic-Adenosine Monophosphate Dependent (cAMD) Protein Kinase A (PKA) with Mg(2)ATP and the heptapeptide substrate Kemptide by classical molecular dynamics. The chosen synthetic substrate is relevant for its high efficiency and small size, and it has no...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-007-9143-x
更新日期：2007-10-01 00:00:00
abstract：:Mycobacterium tuberculosis (Mtb) 16.3 kDa heat shock protein 16.3 (HSP16.3) is a latency-associated antigen that can be targeted for latent tuberculosis (TB) diagnostic and therapeutic development. We have previously developed human VH domain antibodies (dAbs; clone E3 and F1) specific against HSP16.3. In this work, w...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-019-00186-z
更新日期：2019-03-01 00:00:00
abstract：:For computational de novo design, a general retrospective validation work is a very challenging task. Here we propose a comprehensive workflow to de novo design driven by the needs of computational and medicinal chemists and, at the same time, we propose a general validation scheme for this technique. The study was co...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-009-9291-2
更新日期：2009-08-01 00:00:00
abstract：:Two new computational tools, PRO_PHARMEX and PRO_SCOPE, for use in active-site-directed searching of 3D databases are described. PRO_PHARMEX is a flexible, graphics-based program facilitating the extraction of pharmacophores from the active site of a target macromolecule. These pharmacophores can then be used to searc...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/BF00124472
更新日期：1996-10-01 00:00:00
abstract：:In this work, the antimalarial activity of two series of 20 and 7 synthetic 1,2,4-trioxanes and a set of 20 cyclic peroxy ketals are tested for correlation search by means of Molecular Quantum Similarity Measures (MQSM). QSAR models, dealing with different biological responses (IC90, IC50 and ED90) of the parasite Pla...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1023/a:1015917510236
更新日期：2001-12-01 00:00:00
abstract：:To generate reduced point charge models of proteins, we developed an original approach to hierarchically locate extrema in charge density distribution functions built from the Poisson equation applied to smoothed molecular electrostatic potential (MEP) functions. A charge fitting program was used to assign charge valu...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-011-9471-8
更新日期：2011-10-01 00:00:00
abstract：:The use of a recently proposed hydrophobic similarity index for the alignment of molecules and the prediction of their differences in biological activity is described. The hydrophobic similarity index exploits atomic contributions to the octanol/water transfer free energy, which are evaluated by means of the fractiona...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-005-7928-3
更新日期：2005-06-01 00:00:00
abstract：:The de novo design program Skelgen has been used to design inhibitor structures for four targets of pharmaceutical interest. The designed structures are compared to modeled binding modes of known inhibitors (i) visually and (ii) by means of a novel similarity measure considering the size and spatial proximity of the m...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1023/a:1021242018286
更新日期：2002-07-01 00:00:00
abstract：:Computational prediction of the effects of residue changes on peptide-protein binding affinities, followed by experimental testing of the top predicted binders, is an efficient strategy for the rational structure-based design of peptide inhibitors. In this study we apply this approach to the discovery of competitive a...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-012-9574-x
更新日期：2012-07-01 00:00:00
abstract：:Optimization in medicinal chemistry often involves designing replacements for a section of a molecule which aim to retain potency while improving other properties of the compound. In this study, we perform a retrospective analysis using a number of computational methods to identify active side chains amongst a pool of...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-020-00313-1
更新日期：2020-09-01 00:00:00
abstract：:In the recent SAMPL5 challenge, participants submitted predictions for cyclohexane/water distribution coefficients for a set of 53 small molecules. Distribution coefficients (log D) replace the hydration free energies that were a central part of the past five SAMPL challenges. A wide variety of computational methods w...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-016-9954-8
更新日期：2016-11-01 00:00:00
abstract：:The aspartate protease of the human immune deficiency type-1 virus (HIV-1) has become a crucial antiviral target in which many useful antiretroviral inhibitors have been developed. However, it seems the emergence of new HIV-1 PR mutations enhances drug resistance, hence, the available FDA approved drugs show less acti...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-018-0099-9
更新日期：2018-03-01 00:00:00
abstract：:G Protein-Coupled Receptors (GPCRs) constitute a superfamily of receptors that forms an important therapeutic target. The number of known GPCR sequences and related information increases rapidly. For these reasons, we are developing the Viseur program to integrate the available information related to GPCRs. The Viseur...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1023/a:1008170432484
更新日期：1999-11-01 00:00:00
abstract：:RNA interference (RNAi) is a critical cellular pathway activated by double stranded RNA and regulates the gene expression of target mRNA. During RNAi, the 3' end of siRNA binds with the PAZ domain, followed by release and rebinding in a cyclic manner, which deemed essential for proper gene silencing. Recently, we prov...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-013-9665-3
更新日期：2013-07-01 00:00:00
abstract：:The kinase-regulatory cell signaling networks play a central role in the pathogenesis of human cervical cancer (hCC). However, only few kinase inhibitors have been successfully developed for treatment of this cancer to date. Considering that the active sites of protein kinases are highly conserved and small-molecule i...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-019-00211-1
更新日期：2019-07-01 00:00:00
abstract：:Learning strategies can be used to improve the efficiency of virtual screening of very large databases. In these strategies new compounds to be screened are selected on the basis of the results obtained in previous stages, even if truly good ligands have not yet been identified. This approach requires that the scoring...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-008-9246-z
更新日期：2009-03-01 00:00:00
abstract：:A set of algorithms designed to enhance the display of protein binding cavities is presented. These algorithms, collectively entitled CAVITY SEARCH, allow the user to isolate and fully define the extent of a particular cavity. Solid modeling techniques are employed to produce a detailed cast of the active site region,...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/BF00117400
更新日期：1990-12-01 00:00:00
abstract：:While it may seem intuitive that using an ensemble of multiple conformations of a receptor in structure-based virtual screening experiments would necessarily yield improved enrichment of actives relative to using just a single receptor, it turns out that at least in the p38 MAP kinase model system studied here, a very...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-008-9182-y
更新日期：2008-09-01 00:00:00
abstract：:In order to identify novel chemical classes of factor Xa inhibitors, five scoring functions (FlexX, DOCK, GOLD, ChemScore and PMF) were engaged to evaluate the multiple docking poses generated by FlexX. The compound collection was composed of confirmed potent factor Xa inhibitors and a subset of the LeadQuest screenin...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1023/b:jcam.0000047812.39758.ab
更新日期：2004-05-01 00:00:00
abstract：:The free fatty acid receptor 1 (FFAR1, formerly GPR40), is a potential G protein-coupled receptor (GPCR) target for the treatment of type 2 diabetes mellitus (T2DM), as it enhances glucose-dependent insulin secretion upon activation by endogenous long-chain free fatty acids. The presence of two allosterically communic...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/s10822-020-00338-6
更新日期：2020-11-01 00:00:00
abstract：:The Multiple Copy Simultaneous Search methodology has been used to construct functionality maps for an extended region of human thrombin, including the active site. This method allows the determination of energetically favorable positions and orientations for functional groups defined by the user on the three-dimensio...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1007/BF00124460
更新日期：1996-02-01 00:00:00
abstract：:The Fas antigen, a cell surface receptor belonging to the tumor necrosis factor receptor (TNFR) superfamily, triggers programmed cell death (apoptosis) in the immune system. The three-dimensional structure of Fas and molecular details of the interaction between Fas and its ligand are currently unknown. A three-dimensi...
journal_title：Journal of computer-aided molecular design
pub_type： 杂志文章
doi：10.1023/a:1008011024584
更新日期：1997-01-01 00:00:00
