DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: OFraMP: a fragment-based tool to facilitate the parametrization of large molecules

Journal Article · · Journal of Computer-Aided Molecular Design
ORCiD logo; ; ORCiD logo; ; ORCiD logo; ORCiD logo; ORCiD logo; ; ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo

Abstract An Online tool for Fragment-based Molecule Parametrization (OFraMP) is described. OFraMP is a web application for assigning atomic interaction parameters to large molecules by matching sub-fragments within the target molecule to equivalent sub-fragments within the Automated Topology Builder (ATB, atb.uq.edu.au) database. OFraMP identifies and compares alternative molecular fragments from the ATB database, which contains over 890,000 pre-parameterized molecules, using a novel hierarchical matching procedure. Atoms are considered within the context of an extended local environment (buffer region) with the degree of similarity between an atom in the target molecule and that in the proposed match controlled by varying the size of the buffer region. Adjacent matching atoms are combined into progressively larger matched sub-structures. The user then selects the most appropriate match. OFraMP also allows users to manually alter interaction parameters and automates the submission of missing substructures to the ATB in order to generate parameters for atoms in environments not represented in the existing database. The utility of OFraMP is illustrated using the anti-cancer agent paclitaxel and a dendrimer used in organic semiconductor devices. Graphical abstract OFraMP applied to paclitaxel (ATB ID 35922).

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1984881
Journal Information:
Journal of Computer-Aided Molecular Design, Journal Name: Journal of Computer-Aided Molecular Design Journal Issue: 8 Vol. 37; ISSN 0920-654X
Publisher:
Springer Science + Business MediaCopyright Statement
Country of Publication:
Netherlands
Language:
English

References (42)

Calculation of intramolecular force fields from second-derivative tensors journal January 1996
Effect of Host Generation on the Luminescent and Charge Transporting Properties of Solution Processed OLEDs journal September 2021
Comparison of Maximum Common Subgraph Isomorphism Algorithms for the Alignment of 2D Chemical Structures journal November 2017
Fast, efficient generation of high-quality atomic charges. AM1-BCC model: II. Parameterization and validation journal October 2002
GROMACS: Fast, flexible, and free journal January 2005
CHARMM: The biomolecular simulation program journal July 2009
MATCH: An atom-typing toolset for molecular mechanics force fields journal November 2011
Rapid parameterization of small molecules using the force field toolkit journal September 2013
Fast Parallel Algorithms for Short-Range Molecular Dynamics journal March 1995
Finding Largest Common Substructures of Molecules in Quadratic Time book January 2017
Definition and testing of the GROMOS force-field versions 54A7 and 54B7 journal April 2011
Testing and validation of the Automated Topology Builder (ATB) version 2.0: prediction of hydration free enthalpies journal January 2014
Enumerating all connected maximal common subgraphs in two graphs journal January 2001
Automatic atom type and bond type perception in molecular mechanical calculations journal October 2006
Approaches for Calculating Solvation Free Energies and Enthalpies Demonstrated with an Update of the FreeSolv Database journal April 2017
ZINC20—A Free Ultralarge-Scale Chemical Database for Ligand Discovery journal October 2020
OPLS3: A Force Field Providing Broad Coverage of Drug-like Small Molecules and Proteins journal December 2015
Optimized Lennard-Jones Parameters for Druglike Small Molecules journal April 2018
Escaping Atom Types in Force Fields Using Direct Chemical Perception journal October 2018
Automated Topology Builder Version 3.0: Prediction of Solvation Free Enthalpies in Water and Hexane journal October 2018
1.14*CM1A-LBCC: Localized Bond-Charge Corrected CM1A Charges for Condensed-Phase Simulations journal January 2017
SMILES, a chemical language and information system. 1. Introduction to methodology and encoding rules journal February 1988
Automation of the CHARMM General Force Field (CGenFF) II: Assignment of Bonded Parameters and Partial Atomic Charges journal November 2012
An Automated Force Field Topology Builder (ATB) and Repository: Version 1.0 journal October 2011
Automated Force Field Parameterization for Nonpolarizable and Polarizable Atomic Models Based on Ab Initio Target Data journal July 2013
Prediction of Absolute Solvation Free Energies using Molecular Dynamics Free Energy Perturbation and the OPLS Force Field journal April 2010
A well-behaved electrostatic potential based method using charge restraints for deriving atomic charges: the RESP model journal October 1993
A Second Generation Force Field for the Simulation of Proteins, Nucleic Acids, and Organic Molecules journal May 1995
The GROMOS Biomolecular Simulation Program Package journal May 1999
Long-range corrected hybrid density functionals with damped atom–atom dispersion corrections journal January 2008
Paclitaxel (Taxol) journal April 1995
Electrostatics of nanosystems: Application to microtubules and the ribosome journal August 2001
The Protein Data Bank journal January 2000
R.E.D. Server: a web service for deriving RESP and ESP charges and building force field libraries for new molecules and molecular fragments journal May 2011
ChEMBL: a large-scale bioactivity database for drug discovery journal September 2011
LigParGen web server: an automatic OPLS-AA parameter generator for organic ligands journal April 2017
ChEMBL: towards direct deposition of bioassay data journal November 2018
Crystallography & NMR System: A New Software Suite for Macromolecular Structure Determination journal September 1998
JSME: a free molecule editor in JavaScript journal May 2013
Automated partial atomic charge assignment for drug-like molecules: a fast knapsack approach journal February 2019
An open source chemical structure curation pipeline using RDKit journal September 2020
CherryPicker: An Algorithm for the Automated Parametrization of Large Biomolecules for Molecular Simulation journal June 2019

Similar Records

Related Subjects