2PN7

Human gamma-glutamyl cyclotransferase


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP3.92772 micro L of Selenomethionine containing GGCT (15mg/ml in 20 mM Tris/HCL 0,1mM dithiothreitol pH8.0) was mixed with equal volumes of gamma-glu-glu dipeptide (40mM) and well solution. The well contained 1ml of a solution comprising PEG 4000 (22.5% w/v), 100mM sodium formate buffer pH3.9, 200mM ammonium acetate. , VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.0840.75

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 35.181α = 90
b = 98.668β = 90
c = 100.659γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 31519-ID beamline optics2006-11-25MMAD
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 19-ID0.97934, 0.97948APS19-ID

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
12.45098.30.1330.48611.146.11433413898-1-140.121
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)
12.42.4990.20.4860.4862.093.31208

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (I)Cut-off Sigma (F)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 DIFFRACTIONMADTHROUGHOUT2.4150-1-1143341302368796.620.192560.192560.189540.25089RANDOM45.347
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]
-0.991.24-0.25
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.747
r_dihedral_angle_3_deg17.015
r_dihedral_angle_4_deg11.356
r_scangle_it7.015
r_dihedral_angle_1_deg6.605
r_scbond_it4.923
r_mcangle_it3.356
r_mcbond_it2.043
r_angle_refined_deg1.506
r_nbtor_refined0.304
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.747
r_dihedral_angle_3_deg17.015
r_dihedral_angle_4_deg11.356
r_scangle_it7.015
r_dihedral_angle_1_deg6.605
r_scbond_it4.923
r_mcangle_it3.356
r_mcbond_it2.043
r_angle_refined_deg1.506
r_nbtor_refined0.304
r_nbd_refined0.207
r_xyhbond_nbd_refined0.172
r_symmetry_vdw_refined0.151
r_chiral_restr0.101
r_symmetry_hbond_refined0.096
r_bond_refined_d0.015
r_gen_planes_refined0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2681
Nucleic Acid Atoms
Solvent Atoms34
Heterogen Atoms

Software

Software
Software NamePurpose
REFMACrefinement
HKL-3000data collection
HKL-3000data reduction
HKL-3000data scaling
MLPHAREphasing