High temperature (363K) crystal structure of 5'-Deoxy-5'-methylthioadenosine phosphorylase from Aeropyrum pernix after 30 minutes reaction with substrate


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1WTA 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1COUNTER-DIFFUSION5.4293.2The mixture of protein solution and agarose, methylcellurose was filled into a glass capillary, and the capillary was immersed in the reservoir solution for crystallization. The composition of the reservoir solution was as follows. 15%(v/v)PEG#200, 0.1M phosphate citrate pH 5.4, 5mM MTA
Crystal Properties
Matthews coefficientSolvent content
2.2757155945.9846382

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 78.997α = 90
b = 78.997β = 90
c = 232.969γ = 120
Symmetry
Space GroupH 3 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray363PIXELDECTRIS EIGER X 16M2025-07-02MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONPHOTON FACTORY BEAMLINE BL-17A0.98Photon FactoryBL-17A

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)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
11.7944.3599.90.2240.2520.1120.98512.49.626844
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.791.831001.221.3680.6140.7043.29.5

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1WTA1.7944.3526842139199.9030.1510.14940.15930.17590.186428.444
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]
0.0210.010.021-0.068
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_6_deg14.826
r_dihedral_angle_3_deg14.104
r_lrange_it10.159
r_lrange_other10.159
r_dihedral_angle_2_deg8.531
r_scangle_it7.712
r_scangle_other7.71
r_dihedral_angle_1_deg6.939
r_scbond_it4.885
r_scbond_other4.884
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_6_deg14.826
r_dihedral_angle_3_deg14.104
r_lrange_it10.159
r_lrange_other10.159
r_dihedral_angle_2_deg8.531
r_scangle_it7.712
r_scangle_other7.71
r_dihedral_angle_1_deg6.939
r_scbond_it4.885
r_scbond_other4.884
r_mcangle_it4.184
r_mcangle_other4.183
r_mcbond_it2.789
r_mcbond_other2.788
r_angle_refined_deg1.852
r_angle_other_deg0.62
r_nbd_refined0.21
r_symmetry_nbd_refined0.208
r_nbd_other0.204
r_symmetry_nbd_other0.199
r_nbtor_refined0.18
r_symmetry_xyhbond_nbd_refined0.14
r_xyhbond_nbd_refined0.134
r_chiral_restr0.089
r_symmetry_nbtor_other0.086
r_dihedral_angle_other_2_deg0.054
r_symmetry_xyhbond_nbd_other0.051
r_bond_refined_d0.01
r_gen_planes_refined0.009
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2140
Nucleic Acid Atoms
Solvent Atoms41
Heterogen Atoms32

Software

Software
Software NamePurpose
REFMACrefinement
Cootmodel building
MOLREPphasing
Aimlessdata scaling
XDSdata reduction