1YAU

Structure of Archeabacterial 20S proteasome- PA26 complex


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.22730.1M Na-citrate/phosphate buffer, 0.2M Lithium Sulfate, 15% PEG-1000, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 273K
Crystal Properties
Matthews coefficientSolvent content
3.463

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 255.224α = 90
b = 126.913β = 92.42
c = 181.027γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 42004-07-23MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X29A1.0722NSLSX29A

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
12.42099.90.0870.08794224164
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)
12.42.4999.90.3810.3812.1

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-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB entry 1PMA2.48218327217258106999.820.180380.180380.180120.23292RANDOM40.74
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]
-0.01-0.040.02-0.01
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.638
r_dihedral_angle_3_deg17.485
r_dihedral_angle_4_deg16.776
r_dihedral_angle_1_deg6.816
r_scangle_it4.04
r_scbond_it2.566
r_mcangle_it1.697
r_angle_refined_deg1.585
r_mcbond_it1.021
r_nbtor_refined0.302
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.638
r_dihedral_angle_3_deg17.485
r_dihedral_angle_4_deg16.776
r_dihedral_angle_1_deg6.816
r_scangle_it4.04
r_scbond_it2.566
r_mcangle_it1.697
r_angle_refined_deg1.585
r_mcbond_it1.021
r_nbtor_refined0.302
r_nbd_refined0.223
r_xyhbond_nbd_refined0.177
r_symmetry_vdw_refined0.172
r_symmetry_hbond_refined0.16
r_chiral_restr0.102
r_bond_refined_d0.017
r_gen_planes_refined0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms34748
Nucleic Acid Atoms
Solvent Atoms1571
Heterogen Atoms167

Software

Software
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing