Data quality metrics extracted from 2rkh.cif.gz by aB_cif2table1 from BUSTER (Global Phasing Ltd.). See also the PDBx/mmCIF dictionary.


Experimental information for 2RKH at RCSB, PDBe, PDBj

Experiment
Method
_exptl.method
X-RAY DIFFRACTION
  The method used in the experiment.
Experimental protocol
_diffrn_radiation.pdbx_diffrn_protocol
MAD
  SINGLE WAVELENGTH, LAUE, or MAD.
Source type
_diffrn_source.source
SYNCHROTRON
  The general class of the radiation source.
Source details
_diffrn_source.type
ALS BEAMLINE 8.2.1
  The make, model or name of the source of radiation.
Synchrotron site
_diffrn_source.pdbx_synchrotron_site
ALS
  Synchrotron site.
Beamline
_diffrn_source.pdbx_synchrotron_beamline
8.2.1
  Synchrotron beamline.
Temperature [K]
_diffrn.ambient_temp
100
  The mean temperature in kelvins at which the intensities were
  measured.
Detector technology
_diffrn_detector.detector
CCD
  The general class of the radiation detector.
Collection date
_diffrn_detector.pdbx_collection_date
2007-09-15
  The date of data collection.
Detector
_diffrn_detector.type
ADSC QUANTUM 315
  The make, model or name of the detector device used.
Wavelength(s) [Å]
_diffrn_source.pdbx_wavelength_list
1.0000, 0.9795, 0.9797
  Comma separated list of wavelengths or wavelength range.
Software
Data collection
_software.classification
ADSC (Quantum)
  The classification of the program according to its
  major function.
Data reduction
_software.classification
XDS
  The classification of the program according to its
  major function.
Data scaling
_software.classification
XSCALE (Wolfgang Kabsch)
  The classification of the program according to its
  major function.
Phasing #1
_software.classification
SHELX (George Sheldrick; gsheldr@shelx.uni-ac.gwdg.de)
  The classification of the program according to its
  major function.
Phasing #2
_software.classification
SHELXD
  The classification of the program according to its
  major function.
Phasing #3
_software.classification
SHARP
  The classification of the program according to its
  major function.
Model building
_software.classification
MolProbity (3beta29; D.C. & J.S. Richardson lab; molprobity@kinemage.biochem.duke.edu)
  The classification of the program according to its
  major function.
Refinement #1
_software.classification
REFMAC (5.3.0040; Murshudov, G.N.; ccp4@dl.ac.uk)
  The classification of the program according to its
  major function.
Refinement #2
_software.classification
PHENIX (P.D. Adams; PDAdams@lbl.gov)
  The classification of the program according to its
  major function.
General information
Spacegroup name
_symmetry.space_group_name_H-M
P 43 21 2
  Hermann-Mauguin space-group symbol. Note that the
  Hermann-Mauguin symbol does not necessarily contain complete
  information about the symmetry and the space-group origin. If
  used, always supply the FULL symbol from International Tables
  for Crystallography Vol. A (2002) and indicate the origin and
  the setting if it is not implicit. If there is any doubt that
  the equivalent positions can be uniquely deduced from this
  symbol, specify the _symmetry_equiv.pos_as_xyz or
  _symmetry.space_group_name_Hall data items as well. Leave
  spaces between symbols referring to
  different axes.
Unit cell parameters
_cell.length_{a,b,c} _cell.angle_{alpha,beta,gamma}
66.62
  Unit-cell length a corresponding to the structure reported in
  angstroms.
66.62
  Unit-cell length b corresponding to the structure reported in
  angstroms.
92.60
  Unit-cell length c corresponding to the structure reported in
  angstroms.
90.0
  Unit-cell angle alpha of the reported structure in degrees.
90.0
  Unit-cell angle beta of the reported structure in degrees.
90.0
  Unit-cell angle gamma of the reported structure in degrees.
Wavelength
_diffrn_radiation_wavelength.wavelength
1.00000
  The radiation wavelength in angstroms.
0.97950
  The radiation wavelength in angstroms.
0.97970
  The radiation wavelength in angstroms.
 Å

Data quality metricsOverallInnerShellOuterShell
Low resolution limit [Å]
_reflns.d_resolution_low _reflns_shell.d_res_low
28.364
  The largest value in angstroms for the interplanar spacings
  for the reflection data. This is called the lowest resolution.
28.364
  The highest value in angstroms for the interplanar spacings
  for the reflections in this shell. This is called the lowest
  resolution.
2.070
  The highest value in angstroms for the interplanar spacings
  for the reflections in this shell. This is called the lowest
  resolution.
High resolution limit [Å]
_reflns.d_resolution_high _reflns_shell.d_res_high
2.000
  The smallest value in angstroms for the interplanar spacings
  for the reflection data. This is called the highest resolution.
4.300
  The smallest value in angstroms for the interplanar spacings
  for the reflections in this shell. This is called the highest
  resolution.
2.000
  The smallest value in angstroms for the interplanar spacings
  for the reflections in this shell. This is called the highest
  resolution.
Rmerge
_reflns.pdbx_Rmerge_I_obs _reflns_shell.Rmerge_I_obs
0.046
  The R value for merging intensities satisfying the observed
  criteria in this data set.
0.023
  The value of Rmerge(I) for reflections classified as 'observed'
  (see _reflns.observed_criterion) in a given shell.
  
  sum~i~(sum~j~|I~j~ - <I>|)
  Rmerge(I) = --------------------------
  sum~i~(sum~j~<I>)
  
  I~j~ = the intensity of the jth observation of reflection i
  <I> = the mean of the intensities of all observations of
  reflection i
  
  sum~i~ is taken over all reflections
  sum~j~ is taken over all observations of each reflection
0.665
  The value of Rmerge(I) for reflections classified as 'observed'
  (see _reflns.observed_criterion) in a given shell.
  
  sum~i~(sum~j~|I~j~ - <I>|)
  Rmerge(I) = --------------------------
  sum~i~(sum~j~<I>)
  
  I~j~ = the intensity of the jth observation of reflection i
  <I> = the mean of the intensities of all observations of
  reflection i
  
  sum~i~ is taken over all reflections
  sum~j~ is taken over all observations of each reflection
  Rmeas - - -
  Rpim - - -
Total number of observations
_reflns_shell.number_measured_obs
-
10208
  The number of reflections classified as 'observed'
  (see _reflns.observed_criterion) for this
  shell.
9495
  The number of reflections classified as 'observed'
  (see _reflns.observed_criterion) for this
  shell.
Total number unique
_reflns.number_obs _reflns_shell.number_unique_obs
14688
  The number of reflections in the REFLN list (not the DIFFRN_REFLN
  list) classified as observed (see _reflns.observed_criterion).
  This number may contain Friedel-equivalent reflections according
  to the nature of the structure and the procedures used.
2724
  The total number of measured reflections classified as 'observed'
  (see _reflns.observed_criterion) which are symmetry-unique
  after merging for this shell.
2578
  The total number of measured reflections classified as 'observed'
  (see _reflns.observed_criterion) which are symmetry-unique
  after merging for this shell.
<I/σ(I)>
_reflns.pdbx_netI_over_sigmaI _reflns_shell.meanI_over_sigI_obs
16.26
  The mean of the ratio of the intensities to their
  standard uncertainties, <I/sigma(I)>.
42.90
  The ratio of the mean of the intensities of the reflections
  classified as 'observed' (see _reflns.observed_criterion) in
  this shell to the mean of the standard uncertainties of the
  intensities of the 'observed' reflections in this
  shell.
2.00
  The ratio of the mean of the intensities of the reflections
  classified as 'observed' (see _reflns.observed_criterion) in
  this shell to the mean of the standard uncertainties of the
  intensities of the 'observed' reflections in this
  shell.
Completeness [%]
_reflns.percent_possible_obs _reflns_shell.percent_possible_all
99.7
  The percentage of geometrically possible reflections represented
  by reflections that satisfy the resolution limits established
  by _reflns.d_resolution_high and _reflns.d_resolution_low and
  the observation limit established by
  _reflns.observed_criterion.
99.4
  The percentage of geometrically possible reflections represented
  by all reflections measured for this shell.
97.4
  The percentage of geometrically possible reflections represented
  by all reflections measured for this shell.
  Multiplicity - - -
  CC(1/2) - - -

Refinement
PDB entry ID
_entry.id
2RKH
Deposition date
_pdbx_database_status.recvd_initial_deposition_date
2007-10-16
Resolution
_refine.ls_d_res_low _refine.ls_d_res_high
28.4 - 2.000 Å
Rwork/Rfree
_refine.ls_R_factor_R_work _refine.ls_R_factor_R_free
0.2120 / 0.2560
Structure solution method
_refine.pdbx_method_to_determine_struct
MAD