Evidence map›Paper›PMID 23146088›Full record

ArticleJournal of chemical information and modeling2012

Automation of the CHARMM General Force Field (CGenFF) I: bond perception and atom typing.

K Vanommeslaeghe, A D MacKerell

Abstract read
In one paragraph

Article in Journal of chemical information and modeling, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 884 papers.

0numbers the graph read from it
0cells of the map it votes in
884citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

884 citing papers in PubMed.

  1. Article
  2. Structure-based discovery of acridone alkaloids as disruptors of the HEG1-KRIT1 protein-protein interaction in cerebral cavernous malformation signaling.Medicinal chemistry research : an international journal for rapid communications on design and mechanisms of action of biologically active agents · 2026
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  9. Agonist-specific conformational dynamics at the βBritish journal of pharmacology · 2026
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  19. Can Graph Neural Networks Understand Chemical Elements?Journal of chemical information and modeling · 2026
    Article
  20. Article

824 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

K VanommeslaegheDepartment of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland 21201, USA.
A D MacKerell

Funding

Restoration of Tumor Suppression Activity in Malignant MelanomaR01CA107331 · NCI · UNIVERSITY OF MARYLAND BALTIMORE · PI WEBER, DAVID JOSEPH · 2006 to 2015
$5.4M
Oligonucleotide Conformational HeterogeneityR01GM051501 · NIGMS · UNIVERSITY OF MARYLAND BALTIMORE · PI MACKERELL, ALEXANDER D · 2003 to 2018
$3.6M
Carbohydrate force fields for structure, dynamics and molecular recognitionR01GM070855 · NIGMS · UNIVERSITY OF MARYLAND BALTIMORE · PI MACKERELL, ALEXANDER D · 2005 to 2018
$3.5M
HALOGEN FREE ENERGY DATABASE FOR RATIONAL DRUG DESIGNR29GM051501 · NIGMS · UNIVERSITY OF MARYLAND BALTIMORE · PI MACKERELL, ALEXANDER D. · 1996 to 2000
$108k
NCI NIH HHS CA107331NCI NIH HHS R01 CA107331NIGMS NIH HHS GM070855NIGMS NIH HHS GM51501NIGMS NIH HHS R01 GM051501NIGMS NIH HHS R01 GM070855NIGMS NIH HHS R29 GM051501
6 · The paper itself

Abstract

Molecular mechanics force fields are widely used in computer-aided drug design for the study of drug-like molecules alone or interacting with biological systems. In simulations involving biological macromolecules, the biological part is typically represented by a specialized biomolecular force field, while the drug is represented by a matching general (organic) force field. In order to apply these general force fields to an arbitrary drug-like molecule, functionality for assignment of atom types, parameters, and charges is required. In the present article, which is part I of a series of two, we present the algorithms for bond perception and atom typing for the CHARMM General Force Field (CGenFF). The CGenFF atom typer first associates attributes to the atoms and bonds in a molecule, such as valence, bond order, and ring membership among others. Of note are a number of features that are specifically required for CGenFF. This information is then used by the atom typing routine to assign CGenFF atom types based on a programmable decision tree. This allows for straightforward implementation of CGenFF's complicated atom typing rules and for equally straightforward updating of the atom typing scheme as the force field grows. The presented atom typer was validated by assigning correct atom types on 477 model compounds including in the training set as well as 126 test-set molecules that were constructed to specifically verify its different components. The program may be utilized via an online implementation at https://www.paramchem.org/ .

Indexed as

Computer-Aided DesignDrug DesignModels, MolecularAutomationCyclohexenesDecision TreesLimonenePyridinium CompoundsTerpenesCyclohexenesLimonenePyridinium CompoundsTerpenes

Identifiers

PMID23146088
PMCPMC3528824

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.