1M4L

STRUCTURE OF NATIVE CARBOXYPEPTIDASE A AT 1.25 RESOLUTION


X-RAY DIFFRACTION

Crystallization

Crystal Properties
Matthews coefficientSolvent content
1.8232.4

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 51.687α = 90
b = 60.267β = 97.47
c = 47.453γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray297IMAGE PLATEMAR scanner 300 mm plate1997-09-01MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X12B1.085NSLSX12B

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
11.253086.30.06613.576497664976
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)
1.251.2736.30.127

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTERY 1YME1.25306497664976341686.30.1040.1040.1451RANDOM
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
92764.4
RMS Deviations
KeyRefinement Restraint Deviation
s_approx_iso_adps0.102
s_non_zero_chiral_vol0.1
s_anti_bump_dis_restr0.08
s_zero_chiral_vol0.076
s_similar_adp_cmpnt0.056
s_angle_d0.03
s_from_restr_planes0.0268
s_bond_d0.015
s_rigid_bond_adp_cmpnt0.005
s_similar_dist
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2462
Nucleic Acid Atoms
Solvent Atoms375
Heterogen Atoms1

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
TNTrefinement
SHELXL-97refinement
TNTphasing