Hi,

As I understand it, the current and most up to date CHARMM protein force field (as included in both the charmm27 and charmm36 force field directories) is the CHARMM22 protein force field with the CMAP correction. In other words there would be no difference between the two options originally mentioned.

Cheers

Tom

ABEL Stephane 175950 wrote:
Hi, Probably the "CHARMM27_protein+Charmm36_lipids" version. AFAIK, the second version was not already converted in GROMACS format.
Stephane

---------------------------------------------------

hello:

  I found a charmm36.tar.gz in Gromacs website


GROMACS 4.5.4 version of the CHARMM36 force field files. These updated CHARMM lipids allow the all-atom simulations of membrane and membrane-protein systems without the use of surface tension. Check out the forcefield.doc for more information regarding these files
     71.65 kB    15:42, 25 Sep 2012    TomPiggot


I am just wondering, is the the one with CHARMM27_protein+Charmm36_lipids or it is CHARMM36_protein+CHARMM36_lipids?

thank you very much
best
Albert

--
Dr Thomas Piggot
University of Southampton, UK.
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