###############################################################################
# Parameter names matched in common.idb:
#     a
#     b
#     c
#     alpha
#     beta
#     gamma
#     anom_library
#     bscale
#     coordinate_infile
#     fft_memory
#     high_res
#     low_res_bscale
#     low_res
#     obs_f
#     obs_fom
#     obs_i
#     obs_pa
#     obs_pb
#     obs_pc
#     obs_pd
#     obs_phase
#     obs_rms
#     obs_sigf
#     obs_sigi
#     obs_w
#     parameter_infile_\d+
#     reflection_infile_\d+
#     sg
#     sigma_cut
#     structure_infile
#     test_flag
#     test_set
#     bulk_mask_infile
#     ncs_infile
#     atom_select
#     atom_main
#     bulk_sol
#     sol_b
#     sol_k
#     target_bins
#     asig_main
#     asig_side
#     bsig_main
#     bsig_side
#     reftarget
#     low_res_wilson
#     conf_\d+
###############################################################################
#
vars: entry_id
info: String which is used as the mmCIF entry indentifier. This can be
more than 1 character (but should not be too long).
#
vars: title
info: Text providing some human readable information about the
structure, for example the name of the molecule.
#
vars: topology_infile_\d+
info: Input CNS topology file containing residue definitions.
#
vars: mod_fpart
info: Complex reciprocal space array containing partial structure
factors (for example, a previously calculated bulk solvent correction
calculated). This is not normally used but may be required if the bulk
solvent model has been calculated in a different program. It is
suggested to use the internal bulk solvent correction in the CNS task
files.
#
vars: cv_method
info: String defining the cross-validation method used in the
structure determination. Usually cross-validation should be used
throughout the refinement (from the very start). If cross-validation
has been used a posteriori (at the end of refinement) then bias in the
test set should be removed by simulated annealing refinement at high
temperature (for example, 5000K).
#
vars: cv_select
info: String defining the method for selecting cross-validation
reflections. If the test set has been generated using CNS then this
will be random. If another program has been used to generate the test
set other options may have been used (for example to use of thin
shells for structures with NCS).
#
vars: low_res_cut
info: The lower resolution limit in Å for calculation of
coordinate error using the Luzzati (Luzzati P.V. (1952). Acta
Cryst. 5, 802-810) and Sigma-A (Read R.J. (1986). Acta Cryst. A42,
140-149) plots. The suggested value is 5Å. This makes the
calculation independent of the bulk solvent model.
#
vars: mbins
info: Number of equal volume resolution bins for reporting reciprocal
space statistics. Bin limits are calculated such that an approximately
equal number of reflections are in each bin. A value of 10 is
suggested for most structures. A larger value may be better if there
are many reflections (large unit cell or very high resolution).
#
vars: bfactor_model
info: String indicating the atomic B-value model used in
refinement. For structures are medium to high resolution a restrained
individual B-value model is used. At lower resolution it may be only
possible to use a group B-value model (with one or two B-values per
residue). At very low resolution it may only be possible to apply an
overall B-value to all atoms (this is not usual).
#
vars: atom_poly
info: Atom selection specifying those atoms which belong to
macromolecular polymers such as protein and nucleic acid. This is
required to allow the reporting of some statistics based on atom type.
#
vars: atom_nonpoly
info: Atom selection specifying those atoms which do not belong to
macromolecular polymers such as protein and nucleic acid. This
includes ligands, ions and non-polymer atoms covalently attached to
polymers. This is required to allow the reporting of some statistics
based on atom type.
#
vars: atom_water
info: Atom selection specifying those atoms which belong to water
molecules. This is required to allow the reporting of some statistics
based on atom type.
#
vars: chain_sele_\d+
info: Atom selection specifying atoms which are part of a molecular
chain. A molecular chain is a chemically district entity, for example
a single polypeptide chain or a polypeptide chain with breaks. Each
occurance of a chain must be identified separately (for example, if
there were 2copies of the same protein in the asymmetric unit they
would both be listed and given different chain names).
#
vars: chain_name_\d+
info: String defining the chain name for a selected set of atoms. This
name can be more than 1 character in length. This is used later to
indentify chains by molecular entities.
#
vars: entity_name_\d+
info: String defining the name of a molecular entitity in the
asymmetric unit. For example, if there are 2 copies of a trypsin like
enzyme in the asymmetric unit they could be given the molecular entity
name of TRYP.
#
vars: entity_chains_\d+
info: Text string listing the molecular chains which are of the define
molecular entitity. For example, if there are 2 copies of the same
protein in the asymmetric unit they would both be listed here as
"MOL_A MOL_B" (assuming their chain names had previously been given as
MOL_A and MOL_B). 
#
vars: deposit_outfile
info: Output file in mmCIF format for structure deposition.
#
vars: sol_auto
info: automatic bulk solvent parameter search
#
vars: sol_output
info: optional file with a listing of the results of the automatic bulk solvent grid
search
#
vars: sol_rad
info: solvent mask parameter
#
vars: sol_shrink
info: solvent mask parameter
#