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BioPharmics Surflex Platform 5.191 MultiOS

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  • Saadedin
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    • Sep 2018 
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    BioPharmics Surflex Platform 5.191 MultiOS

    The Surflex Platform consists of the five modules described below. The Surflex Manual contains details of all computational procedures and options within each command-line module. We support Linux (most common variants), Windows, and MacOS. All of the modules are multi-core capable, and very substantial speed-ups are observed with modern multi-core laptops, workstations, and HPC clusters.




    Tools Module
    Fast and Accurate Small Molecule Processing


    The Tools module addresses the most common aspects of small-molecule preparation
    2D to 3D conversion (from SMILES or SDF)
    Chirality detection and enumeration
    Protonation
    Conformer generation

    Features and benefits
    Template-free and non-stochastic
    Relies on MMFF94sf forcefield for structure derivation
    Fast and accurate on typical drug-like ligands, with better coverage of diverse conformations
    Fastest and most accurate method for macrocyclic ligands
    Capable of incorporating NMR restraints, which is particularly useful for large peptidic macrocycles

    Similarity Module
    State-of-the-Art 3D Molecular Similarity


    The Similarity module implements ligand similarity operations using the eSim method
    Virtual screening
    Pose prediction
    Multiple ligand alignment
    The core eSim methodology is also integrated into the Docking and QuanSA modules.

    Features and benefits
    Virtual screening enrichment is both practically and statistically significantly better than alternative methods
    Virtual screening speeds of over 20 million compounds per day on a single computing core
    Databases of billions of molecules can be screened in hours using cloud-based computing resources
    Pose prediction accuracy is substantially better than alternative approaches

    Docking and xGen Modules
    Top-Tier Solution for Virtual Screening and pose Prediction + Real-Space X-ray Density Modeling of Ligands


    The Docking module addresses all aspects of ensemble docking
    Large-scale PDB retrieval and processing
    Surface-based binding site alignment using the PSIM method
    Fully automatic pocket variant selection to cover the relevant protein conformational variation
    Virtual screening
    Pose prediction

    Feature and benefits
    Automated alignment and selection of appropriate binding site variants
    Robust and fully automatic modes for virtual screening and pose prediction\Very extensive validation
    Highly accurate non-cognate ligand docking
    Directly applicable to synthetic macrocycles, with accuracy equivalent to non-macrocycles
    The xGen module implements a novel method for real-space refinement and de novo fitting of ligand ensembles into X-ray density maps

    Models ligand density using conformational ensembles
    Avoids atom-specific B-factors as X-ray model parameters
    Produces chemically sensible conformers with low strain energy; applicable to complex macrocycles
    Yields superior fit to X-ray density than standard fitting approaches
    Accessible to non-crystallographers and as part of crystallographic workflows

    Affinity Module
    Unique Machine-Learning Approach for Prediction Binding Affinity and Pose


    The Affinity Module implements the QuanSA (Quantitative Surface-field Analysis) method, which builds physically meaningful models that approximate the causal basis of protein ligand interactions. The module implements integrated procedures for quantitative prediction of both binding affinity and ligand pose, with or without protein structural information
    Multiple ligand alignment for molecular series that include multiple scaffolds
    Incorporation of known binding site information
    Machine-learning approach to physical binding site model induction using a multiple-instance approach
    Prediction of both binding affinity and binding mode of new ligands
    Iterative refinement of models with new data

    Features and benefits
    Fully automatic model building, including all aspects of ligand conformation and alignment
    The binding site model (a “pocket-field”) is analogous to a protein binding site, including aspects of flexibility
    The pocket-field identifies which pose a new molecule must adopt, and ligand strain is directly modeled
    Measurements of prediction confidence and molecular novelty guide user interpretation
    Very detailed aspects of molecular surface shape, directional hydrogen bonding preferences, and Coulombic electrostatics are learned
    Requires as few as 20 molecules for model induction and is capable of modeling series of hundreds of molecules


    File Size: 2.8 GB

    Download

    http://s9.alxa.net/one/2024/07/BioPh...91.MultiOS.rar

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