Crystallographic Information Framework

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Index

Macromolecular dictionary (mmCIF) version 2.0.09

_chem_comp.mon_nstd_flag

Name:
'_chem_comp.mon_nstd_flag'

Definition:

   'yes' indicates that this is a 'standard' monomer, 'no'
   indicates that it is 'nonstandard'. Nonstandard monomers
   should be described in more detail using the
   _chem_comp.mon_nstd_parent, _chem_comp.mon_nstd_class and
   _chem_comp.mon_nstd_details data items.

Type: ucode

Mandatory item: no


The data value must be one of the following:


no 		the monomer is nonstandard

n 		abbreviation for "no"

yes 		the monomer is standard

y 		abbreviation for "yes"

Enumeration default: no

Category: chem_comp


International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

First online edition (2006)

Edited by S. R. Hall and B. McMahon

An essential guide and reference to CIF for programmers, data managers handling crystal-structure information and practising crystallographers.