X-RAY DIFFRACTION

Crystallization Details
Method pH Temprature Details
X-RAY DIFFRACTION 8.0 ? CRYSTALS OF TRYPSIN WERE GROWN IN 2.5M AMMONIUM SULPHATE, 6MM CALCIUM CHLORIDE, 0.1M TRIS PH 8.15, 60MM BENZAMIDINE. THEY WERE BACKSOAKED IN 0.1M NA PHOSPHATE PH 5.8, 2.5M AMMONIUM SULPHATE TO REMOVE BENZAMIDINE. CRYSTALS WERE MOVED TO 2.5M AMMONIUM SULPHATE, 1MM CALCIUM CHLORDIE, 0.1M TRIS PH 8 AND PEPTIDE INHIBITOR ADDED AT 10MM AND INCUBATED FOR 16 HOURS.
Unit Cell:
a: 60.657 Å b: 63.928 Å c: 71.698 Å α: 90.00° β: 90.00° γ: 90.00°
Symmetry:
Space Group: P 21 21 21
Crystal Properties:
Matthew's Coefficient: 2.58 Solvent Content: 51.96
Refinement Statistics
Diffraction ID Structure Solution Method Cross Validation Method Resolution Limit (High) Resolution Limit (Low) Number of Reflections (Observed) Number of Reflections (R-free) Percent Reflections (Observed) R-Work R-Free Mean Isotropic
X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 2.25 47.73 12681 661 96.9 0.196 0.253 73.66
Data Collection
Overall
Resolution Limit (High) Resolution Limit (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
2.25 47.73 97.5 0.12 ? 11.90 4.2 ? 13342 ? 1.4 ?
Highest Resolution Shell
# Resolution Limits (Low) Resolution Limits (High) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1 2.25 2.33 84.9 ? 1.40 3.6
Diffraction
Diffraction experiment
Crystal ID Scattering Type Data Collection Temprature Detector Detector Type Details Collection Date Monochromator Protocol
1 100 K
Radiation Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX14.1 ? SRS PX14.1
Software
Software Name Purpose Version
REFMAC refinement 5.2.0019
HKL-2000 data reduction .
SCALEPACK data scaling .
AMoRE phasing .