REMARKS Charmm parameter set for water and ions v22 b4
 REMARKS FILENAME="20288ca.par"

 SET ECHO=FALSE END

 {>>>>>>>>>> Developmental Parameter File for Proteins <<<<<<<<<<
  >>>>>>>>>>>>>>>>> Using All Hydrogens (ALLH) <<<<<<<<<<<<<<<<<<
  >>>>>>>>>>>>>>>>>>>>>>> Jan 1993 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
  >>>>>>> Direct comments to Alexander D. MacKerell Jr. <<<<<<<<<
  >>>>>> 410-706-7442 or bitnet: alex,tammy.harvard.edu <<<<<<<<<
  These files are a beta release; additional parameter development
  and testing may lead to alteration of the contents.}

!-----------------------------------------------------------------------------------------------
!	VARIOUS BOND PARAMETERS:  Force Constant, Equilibrium Radius
!-----------------------------------------------------------------------------------------------

!------------------------------------------------------------------------------------------------------
!	VARIOUS ANGLE PARAMETERS:  Force Constant, Equilibrium Angle, Urie-Bradley Force Const., 
!									U.-B. equilibrium  (if any)
!------------------------------------------------------------------------------------------------------

!-------------------------------------------------------------------------------------------------
!	VAN-DER-VAALS PARAMETERS: Energy Well Depth, Distance of Minimum(div. by 2**1/6)
!   for "atoms itself", i.e. for X-X interactions; for X-Y interactions the parameters
!   values are taken as arithmetic mean of appropriate "atomic" parameters.
!   "(1:4)" values refer to special intramolecular interactions between atoms connected through 
!   three bonds. These interactions are taken into consideration only when NBXMOD switch is set
!   to 5 in NBONDS...END statement, which is taken for default (see 10 lines above).	
!-------------------------------------------------------------------------------------------------

 NONBONDED  CA       .0       .0       .0       .0    !



!---------------------------------------------------------------------------------------------
!---------------------------------------------------------------------------------------------
 
 SET ECHO=TRUE END