2H5D

0.9A resolution crystal structure of alpha-lytic protease complexed with a transition state analogue, MeOSuc-Ala-Ala-Pro-Val boronic acid


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1P02SAME PROTEIN BOUND TO MEOSUC-ALA-ALA-PRO-ALA BORONIC ACID AT 0.9A RESOLUTION (UNPUBLISHED DATA, BUT RELATED TO 1P02)

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
182981.3M LITHIUM SULFATE, 0.02M TRIS, PH 8.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K, pH 8.00
Crystal Properties
Matthews coefficientSolvent content
2.4449.6

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 65.768α = 90
b = 65.768β = 90
c = 79.554γ = 120
Symmetry
Space GroupP 32 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152004-06-19MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 8.2.2ALS8.2.2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
10.928.599.90.08527.98.7147100
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
10.90.9199.50.4484.85.9

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONREFINEMENT OF PREVIOUSLY-SOLVED STRUCTURE OF ALPHA-LYTIC PROTEASE BOUND TO MEOSUC-ALA-ALA-PRO-ALA BORONIC ACIDFREE RSAME PROTEIN BOUND TO MEOSUC-ALA-ALA-PRO-ALA BORONIC ACID AT 0.9A RESOLUTION (UNPUBLISHED DATA, BUT RELATED TO 1P02)0.920146962735299.90.0810.080.091RANDOM
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
Coordinate Error
Structure Solution MethodRefinement High ResolutionRefinement Low Resolution
211367.281784.32
RMS Deviations
KeyRefinement Restraint Deviation
s_approx_iso_adps0.086
s_zero_chiral_vol0.081
s_non_zero_chiral_vol0.07
s_angle_d0.045
s_similar_adp_cmpnt0.038
s_from_restr_planes0.035
s_bond_d0.016
s_rigid_bond_adp_cmpnt0.005
s_similar_dist
s_anti_bump_dis_restr
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1424
Nucleic Acid Atoms
Solvent Atoms432
Heterogen Atoms45

Software

Software
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
startingmodel building
SHELXL-97refinement
HKL-2000data reduction