Screened Coulomb potentials implicit solvent model

{{Short description | Continuum solvent model for biomolecular simulations}}

SCP-ISM, or screened Coulomb potentials implicit solvent model, is a continuum approximation of solvent effects for use in computer simulations of biological macromolecules, such as proteins and nucleic acids, usually within the framework of molecular dynamics.{{Cite journal |last=Hassan |first=Sergio A. |last2=Guarnieri |first2=Frank |last3=Mehler |first3=Ernest L. |date=2000-07-01 |title=A General Treatment of Solvent Effects Based on Screened Coulomb Potentials |url=https://pubs.acs.org/doi/10.1021/jp993895e |journal=The Journal of Physical Chemistry B |language=en |volume=104 |issue=27 |pages=6478–6489 |doi=10.1021/jp993895e |issn=1520-6106|url-access=subscription }} It is based on the classic theory of polar liquids, as developed by Peter Debye and corrected by Lars Onsager to incorporate reaction field effects. The model can be combined with quantum chemical calculations to formally derive a continuum model of solvent effects suitable for computer simulations of small and large molecular systems. The model is included in the CHARMM molecular mechanics code.{{Cite web |title=scpism (c48b2) {{!}} CHARMM |url=https://academiccharmm.org/documentation/version/c48b2/scpism |access-date=2025-03-03 |website=academiccharmm.org}}