X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 8
Details 91% 2-METHYL-2,4-PENTANEDIOL, 78mM TRIETHANOLAMINE-HCL pH8, 52mM ETHANOLAMINE-HCL pH9.75, pH 8.0, VAPOR DIFFUSION, SITTING DROP

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 20.85 α = 102.4
b = 20.91 β = 95.33
c = 27.06 γ = 119.62
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1994-11-15
Diffraction Radiation
Monochromator Protocol
SI SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C -- NSLS X12C

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
0.9 25.7 85.9 -- 0.076 -- 3.3 -- 23681 -- 1.0 --
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
0.9 0.93 36.0 -- 0.141 4.3 1.3 --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
DIRECT METHODS 0.9 25.7 -- 2.0 23681 -- 2368 85.9 0.086 0.085 -- 0.105 EVERY TENTH REFLECTION SAME TEST SET FOR SHELXL-93 AND SHELXL-97
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.108
s_similar_adp_cmpnt 0.026
s_rigid_bond_adp_cmpnt 0.006
s_anti_bump_dis_restr 0.192
s_non_zero_chiral_vol 0.0
s_zero_chiral_vol 0.065
s_from_restr_planes 0.017
s_similar_dist 0.016
s_angle_d 0.0
s_bond_d 0.025
Coordinate Error
Parameter Value
Number Disordered Residues 7.0
Occupancy Sum Hydrogen 544.0
Occupancy Sum Non Hydrogen 478.97
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 408
Nucleic Acid Atoms 0
Heterogen Atoms 41
Solvent Atoms 30

Software

Computing
Computing Package Purpose
HKL (DENZO) Data Reduction (intensity integration)
HKL (SCALEPACK) Data Reduction (data scaling)
SHAKE-N-BAKE V. 1.5 (MILLER ET AL) Structure Solution
SHELXL-93, SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement
SHELXL-93 refinement
1994 model building
613-21 model building
ET version: AL. J.APPL.CRYST. 27 model building
BAKE version: (SNB 1.5) MILLER model building
SHAKE model building