Crystallographic Information Framework

[CIF logo]

Index

Macromolecular dictionary (mmCIF) version 2.0.09

_struct_conf_type.id

Name:
'_struct_conf_type.id'

Definition:

   The descriptor that categorizes the type of the conformation
   of the backbone of the polymer (whether protein or nucleic acid).
   Explicit values for the torsion angles that define each
   conformation are not given here, but it is expected that the
   author would provide such information in either the
   _struct_conf_type.criteria or _struct_conf_type.reference data
   items, or both.

Type: ucode

Mandatory item: yes


The following item(s) have an equivalent role in their respective categories:
_struct_conf.conf_type_id

The data value must be one of the following:


HELX_P 		helix with handedness and type not specified (protein)

HELX_OT_P 		helix with handedness and type that do not conform to an accepted category (protein)

HELX_RH_P 		right-handed helix with type not specified (protein)

HELX_RH_OT_P 		right-handed helix with type that does not conform to an accepted category (protein)

HELX_RH_AL_P 		right-handed alpha helix (protein)

HELX_RH_GA_P 		right-handed gamma helix (protein)

HELX_RH_OM_P 		right-handed omega helix (protein)

HELX_RH_PI_P 		right-handed pi helix (protein)

HELX_RH_27_P 		right-handed 2-7 helix (protein)

HELX_RH_3T_P 		right-handed 3-10 helix (protein)

HELX_RH_PP_P 		right-handed polyproline helix (protein)

HELX_LH_P 		left-handed helix with type not specified (protein)

HELX_LH_OT_P 		left-handed helix with type that does not conform to an accepted category (protein)

HELX_LH_AL_P 		left-handed alpha helix (protein)

HELX_LH_GA_P 		left-handed gamma helix (protein)

HELX_LH_OM_P 		left-handed omega helix (protein)

HELX_LH_PI_P 		left-handed pi helix (protein)

HELX_LH_27_P 		left-handed 2-7 helix (protein)

HELX_LH_3T_P 		left-handed 3-10 helix (protein)

HELX_LH_PP_P 		left-handed polyproline helix (protein)

HELX_N 		helix with handedness and type not specified (nucleic acid)

HELX_OT_N 		helix with handedness and type that do not conform to an accepted category (nucleic acid)

HELX_RH_N 		right-handed helix with type not specified (nucleic acid)

HELX_RH_OT_N 		right-handed helix with type that does not conform to an accepted category (nucleic acid)

HELX_RH_A_N 		right-handed A helix (nucleic acid)

HELX_RH_B_N 		right-handed B helix (nucleic acid)

HELX_RH_Z_N 		right-handed Z helix (nucleic acid)

HELX_LH_N 		left-handed helix with type not specified (nucleic acid)

HELX_LH_OT_N 		left-handed helix with type that does not conform to an accepted category (nucleic acid)

HELX_LH_A_N 		left-handed A helix (nucleic acid)

HELX_LH_B_N 		left-handed B helix (nucleic acid)

HELX_LH_Z_N 		left-handed Z helix (nucleic acid)

TURN_P 		turn with type not specified (protein)

TURN_OT_P 		turn with type that does not conform to an accepted category (protein)

TURN_TY1_P 		type I turn (protein)

TURN_TY1P_P 		type I prime turn (protein)

TURN_TY2_P 		type II turn (protein)

TURN_TY2P_P 		type II prime turn (protein)

TURN_TY3_P 		type III turn (protein)

TURN_TY3P_P 		type III prime turn (protein)

STRN 		beta strand (protein)

Category: struct_conf_type


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.