1QMN

Alpha1-antichymotrypsin serpin in the delta conformation (partial loop insertion)


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1AS4PDB ENTRY 1AS4

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.52911 MICROLITER OF 10MG/ML PROTEIN IN 50MM TRIS, 50MM KCL, PH 7.4 WAS MIXED WITH 2 MICROLITER OF PRECIPITANT AND EQUILIBRATED AS A HANGING DROP OVER 1ML OF PRECIPITANT (20% [W/V] PEG 4000, 0.2M AMMONIUM SULPHATE, 0.1M NAOAC, PH 4.5), AT 18 DEGREES C
Crystal Properties
Matthews coefficientSolvent content
2.3147

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 41.723α = 90
b = 122.094β = 101.03
c = 41.724γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293IMAGE PLATEMARRESEARCH1999-02-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSRS BEAMLINE PX7.2SRSPX7.2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
12.34162.10.1010.1014.41.71137334.3
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.272.3917.20.3430.3432.41.1

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1AS42.2740.95113731036600.1970.1970.243RANDOM40.9
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]
-5.487-3.6065.0050.482
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.5
c_scangle_it10.26
c_scbond_it7.57
c_mcangle_it3.55
c_angle_deg2.1
c_mcbond_it2.06
c_improper_angle_d0.75
c_bond_d0.036
c_bond_d_na
c_bond_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.5
c_scangle_it10.26
c_scbond_it7.57
c_mcangle_it3.55
c_angle_deg2.1
c_mcbond_it2.06
c_improper_angle_d0.75
c_bond_d0.036
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2897
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing