Crystallographic Information Framework

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Index

Macromolecular dictionary (mmCIF) version 2.0.09

_chem_comp.type

Name:
'_chem_comp.type'

Definition:

   For standard polymer components, the type of the monomer.
   Note that monomers that will form polymers are of three types:
   linking monomers, monomers with some type of N-terminal (or 5')
   cap and monomers with some type of C-terminal (or 3') cap.

Type: uline

Mandatory item: yes

_chem_comp_link.type_comp_1
_chem_comp_link.type_comp_2

The data value must be one of the following:


'D-peptide linking'

'L-peptide linking'

'D-peptide NH3 amino terminus'

'L-peptide NH3 amino terminus'

'D-peptide COOH carboxy terminus'

'L-peptide COOH carboxy terminus'

'DNA linking'

'RNA linking'

'DNA OH 5 prime terminus'

'RNA OH 5 prime terminus'

'DNA OH 3 prime terminus'

'RNA OH 3 prime terminus'

'D-saccharide 1,4 and 1,4 linking'

'L-saccharide 1,4 and 1,4 linking'

'D-saccharide 1,4 and 1,6 linking'

'L-saccharide 1,4 and 1,6 linking'

L-saccharide

D-saccharide

saccharide

non-polymer

other

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.