Dear CCP4bb-ers,

I have come across a problem with Refmac when I do a few cycles of rigid body refinement. Somewhere in the process I lose all the hydrogen atoms from the input pdb file even though I'm using the 'hout YES' option.
Refmac version (from log file):
CCP4 6.0: Refmac_5.2.0019    version 5.2.0019  : 06/09/05

Script:

refmac5 \
XYZIN pdb1abc.ent \
XYZOUT 1abc_refmacrb.pdb \
HKLIN 1abc.mtz \
HKLOUT 1abc_refmacrb.mtz \
<<eof >1abc_rb.log
make check NONE
make -
    hydrogen YES -
    hout YES -
    peptide NO -
    cispeptide YES -
    ssbridge YES -
    symmetry YES -
    sugar NO -
    connectivity NO -
    link NO
refi -
    type RIGID -
    resi MLKF -
    meth CGMAT
rigid ncycle 10
scal -
    type SIMP -
    LSSC -
    ANISO -
    EXPE
solvent YES -
    VDWProb 1.4 -
    IONProb 0.8 -
    RSHRink 0.8
weight -
    MATRIX 0.1
monitor MEDIUM -
    torsion 10.0 -
    distance 10.0 -
    angle 10.0 -
    plane 10.0 -
    chiral 10.0 -
    bfactor 10.0 -
    bsphere 10.0 -
    rbond 10.0 -
    ncsr 10.0
labin  FP=FP SIGFP=SIGFP -
   FREE=FREE
labout FC=FC FWT=FWT PHIC=PHIC PHWT=PHWT DELFWT=DELFWT PHDELWT=PHDELWT FOM=FOM
PNAME unknown
DNAME unknown220206
RSIZE 80
END
eof
if($status) then
  echo "Problem with refmac. Cannot continue."
  exit(1)
endif

Is there anything wrong with my script or should this be considered a bug/feature of refmac?

Thanks for the help,
Robbie Joosten

Center for Molecular and Biomolecular Informatics
Nijmegen, The Netherlands

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