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N-terminally truncated chicken cystatin (1cew.pdb) converted to a polyalanine chain and limited to those fragments that had been modeled in electron density (residues 86-90 not included)
Crystallization
Crystalization Experiments
ID
Method
pH
Temperature
Details
1
VAPOR DIFFUSION, HANGING DROP
4.8
277
Lyophilized protein was dissolved in 100 mM sodium acetate buffer pH 4.8 containing 20 mM CaCl2. Droplets were equilibrated against 1 ml of reservoir with analogous buffer/CaCl2 solution. After 2 and 4 days, the reservoir solution was supplemented with 100 microliters of MPD, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficient
Solvent content
4.3
71
Crystal Data
Unit Cell
Length ( Å )
Angle ( ˚ )
a = 140.53
α = 90
b = 140.53
β = 90
c = 140.53
γ = 90
Symmetry
Space Group
I 4 3 2
Diffraction
Diffraction Experiment
ID #
Crystal ID
Scattering Type
Data Collection Temperature
Detector
Detector Type
Details
Collection Date
Monochromator
Protocol
1
1
x-ray
100
IMAGE PLATE
MARRESEARCH
2000-09-30
M
SINGLE WAVELENGTH
Radiation Source
ID #
Source
Type
Wavelength List
Synchrotron Site
Beamline
1
SYNCHROTRON
EMBL/DESY, HAMBURG BEAMLINE BW7B
0.8423
EMBL/DESY, HAMBURG
BW7B
Data Collection
Overall
ID #
Resolution (High)
Resolution (Low)
Percent Possible (Observed)
R Merge 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
1
2.5
40
99.2
0.07
27.8
19.9
8429
8429
40.6
Highest Resolution Shell
ID #
Resolution (High)
Resolution (Low)
Percent Possible (All)
Percent Possible (Observed)
R Merge I (Observed)
Mean I Over Sigma (Observed)
Redundancy
Number Unique Reflections (All)
1
2.5
2.59
93.5
0.413
2.5
4.1
Refinement
Statistics
Diffraction ID
Structure Solution Method
Cross Validation method
Starting model
Resolution (High)
Resolution (Low)
Number Reflections (All)
Number Reflections (Observed)
Number Reflections (R-Free)
Percent Reflections (Observed)
R-Factor (All)
R-Factor (Observed)
R-Work (Depositor)
R-Work (DCC)
R-Free (Depositor)
R-Free Selection Details
Mean Isotropic B
X-RAY DIFFRACTION
MOLECULAR REPLACEMENT
free R
N-terminally truncated chicken cystatin (1cew.pdb) converted to a polyalanine chain and limited to those fragments that had been modeled in electron density (residues 86-90 not included)