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A consensus model using overlayed previously published pdb entry 1EZZ (mutant P268A catalytic chain) and 1NBE (T82A regulatory chain) and wild type 3AT1 was used.
A consensus model using overlayed previously published pdb entry 1EZZ (mutant P268A catalytic chain) and 1NBE (T82A regulatory chain) and wild type 3AT1 was used.
A consensus model using overlayed previously published pdb entry 1EZZ (mutant P268A catalytic chain) and 1NBE (T82A regulatory chain) and wild type 3AT1 was used.
Crystallization
Crystalization Experiments
ID
Method
pH
Temperature
Details
1
VAPOR DIFFUSION, HANGING DROP
7
298
Prior to crystallization the enzyme was dialyzed into 40 mM KH2PO4, 2.0 mM 2-mercaptoethanol, 0.2 mM EDTA, pH 7.0 for 24 hours. Single crystals of the K244N mutant were obtained by mixing a 20 mg/ml filtered solution (0.22 m) of the K244N enzyme with a solution of 17% (w/v) PEG 1450, 50 mM malonate, 0.2 mM EDTA, 1 mM sodium azide and 20 mM Bis-Tris buffer pH 7.0 in a 1:1 ratio (v/v), VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficient
Solvent content
3.04
59.22
Crystal Data
Unit Cell
Length ( Å )
Angle ( ˚ )
a = 125.67
α = 90
b = 125.67
β = 90
c = 198.2
γ = 120
Symmetry
Space Group
H 3
Diffraction
Diffraction Experiment
ID #
Crystal ID
Scattering Type
Data Collection Temperature
Detector
Detector Type
Details
Collection Date
Monochromator
Protocol
1
1
x-ray
100
CCD
BRANDEIS - B4
2003-12-30
M
SINGLE WAVELENGTH
Radiation Source
ID #
Source
Type
Wavelength List
Synchrotron Site
Beamline
1
SYNCHROTRON
NSLS BEAMLINE X12C
1.00704
NSLS
X12C
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
2.59
30
0.039
13.3
6.5
36343
34988
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
2.59
2.68
89.8
0.327
12.2
2.62
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 (Observed)
R-Work (Depositor)
R-Work (DCC)
R-Free (Depositor)
R-Free (DCC)
R-Free Selection Details
Mean Isotropic B
X-RAY DIFFRACTION
MOLECULAR REPLACEMENT
THROUGHOUT
A consensus model using overlayed previously published pdb entry 1EZZ (mutant P268A catalytic chain) and 1NBE (T82A regulatory chain) and wild type 3AT1 was used.