2BEI

X-ray structure of thialysine n-acetyltransferase (SSAT2) from homo sapiens


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP727710 MG/ML PROTEIN, 16.4% PEG 5K, 0.10 M MOPS, 0.15 M Potassium Glutamte, pH 7.0, vapor diffusion, hanging drop, temperature 277K, VAPOR DIFFUSION, HANGING DROP
Crystal Properties
Matthews coefficientSolvent content
2.652.6

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 54.583α = 90
b = 83.621β = 90
c = 87.548γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 300 mm CCDHORIZONTAL SAGITALLY FOCUSING 2ND BENT MONOCHROMATOR CRYSTAL, VERTICAL BENT FOCUSING MIRROR2005-10-10MMAD
21
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 22-ID0.97911, 0.96388APS22-ID

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
11.84243.774970.07710.8336.834249
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)
1.8421.9278.578.50.4592.3774.3

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)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 DIFFRACTIONMADTHROUGHOUT1.84243.77434192171996.680.2070.2070.20450.2489RANDOM32.177
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]
1.771-1.709-0.062
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.086
r_dihedral_angle_3_deg12.46
r_dihedral_angle_4_deg12.152
r_scangle_it6.472
r_dihedral_angle_1_deg5.958
r_scbond_it4.884
r_mcangle_it2.843
r_mcbond_it1.878
r_angle_refined_deg1.576
r_nbtor_refined0.308
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.086
r_dihedral_angle_3_deg12.46
r_dihedral_angle_4_deg12.152
r_scangle_it6.472
r_dihedral_angle_1_deg5.958
r_scbond_it4.884
r_mcangle_it2.843
r_mcbond_it1.878
r_angle_refined_deg1.576
r_nbtor_refined0.308
r_symmetry_hbond_refined0.302
r_xyhbond_nbd_refined0.255
r_nbd_refined0.213
r_symmetry_vdw_refined0.185
r_chiral_restr0.126
r_bond_refined_d0.015
r_gen_planes_refined0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2524
Nucleic Acid Atoms
Solvent Atoms305
Heterogen Atoms51

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SHARPphasing
DMphasing
REFMACrefinement
PDB_EXTRACTdata extraction
SOLOMONphasing
ARP/wARPmodel building