1JCL

OBSERVATION OF COVALENT INTERMEDIATES IN AN ENZYME MECHANISM AT ATOMIC RESOLUTION


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelOthernative DERA

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP5.5277MPEG 5000, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.6252.98

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 48.54α = 90
b = 41.95β = 98.36
c = 144.98γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray97CCDADSC QUANTUM 42000-03-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL9-21.0SSRLBL9-2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym 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
11.053095.50.06314.82.5256887256887
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.051.07640.6671

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONFOURIER SYNTHESISR-freenative DERA1.051042439631795701271690.80.1430.169random
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
7
RMS Deviations
KeyRefinement Restraint Deviation
s_anti_bump_dis_restr0.119
s_approx_iso_adps0.105
s_non_zero_chiral_vol0.093
s_zero_chiral_vol0.089
s_similar_adp_cmpnt0.047
s_from_restr_planes0.03
s_angle_d0.029
s_bond_d0.014
s_rigid_bond_adp_cmpnt0.005
s_similar_dist
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3808
Nucleic Acid Atoms
Solvent Atoms708
Heterogen Atoms26

Software

Software
Software NamePurpose
SHELXL-97refinement
DENZOdata reduction
SCALEPACKdata scaling