Supported Applications

DivCon Discovery Suite

  • Description

    a linear-scaling, semiempirical quantum mechanics (SE-QM) program DivCon with the Phenix X-ray refinement engine. Phenix/DivCon does not utilize CIF(s), link restraints and other refinement parameters so there are fewer assumptions about the model. Accurate energy and density scoring tools also allow tautomer/protomer and “flip state” determination.

  • Usage Notes

    The QuantumBio discovery suite is available in SBGrid on request. A license file is also required to use the software. An academic/non-profit license is available for non-profit research performed within an academic setting where results will be placed in the public domain. Email info@quantumbioinc.com for license information, more info can be found at http://www.quantumbioinc.com/products/software_licensing.

    To activate a license from QuantumBio, create the directory


    and copy the file "license" to this directory. From there DivCon will read the license file and should work normally.

  • Installation

    Use the following command to install this title with the CLI client: $ sbgrid-cli install divcon Copy to clipboard
  • Primary Citation*

    O. Borbulevych, J. Plumley, R. Martin, K. J. Merz, and L. Westerhoff.. 2014. Accurate macromolecular crystallographic refinement: incorporation of the linear scaling, semiempirical quantum-mechanics program DivCon into the PHENIX refinement package. Acta Crystallogr D Biol Crystallogr.. 70: 1233-1247.

    • *Full citation information available through

  • Webinars

    Topic: MovableType Software for Fast Free Energy-based Virtual Screening
    Presenter: Lance Westerhoff, Ph.D., QuantumBio, Inc.

    Host: Jason Key
    Recorded on October 6, 2020

    Topic: XModeScore: using crystallography to determine protonation states, fragment binding modes, and flip-states.
    Speaker: Lance Westerhoff, President and General Manager at QuantumBio Inc.

    Date: recorded: Oct 2, 2018
    Host: Jason Key

    Topic: Phenix/DivCon: accurate macromolecular crystallographic refinement using linear scaling, semiempirical quantum-mechanics.
    Presenter: Lance Westerhoff, President and General Manager

    Host: Jason Key
    Recorded on September 22, 2015