3LR6

Self-assembly of spider silk proteins is controlled by a pH-sensitive relay


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSIONAmmonium sulphate, PEG 400, VAPOR DIFFUSION
Crystal Properties
Matthews coefficientSolvent content
2.3447.34

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 68.67α = 90
b = 68.67β = 90
c = 97.342γ = 120
Symmetry
Space GroupP 32 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-rayCCDADSC QUANTUM 315MSINGLE WAVELENGTH
21
31
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID14-2ESRFID14-2
2SYNCHROTRONESRF BEAMLINE ID23-1ESRFID23-1
3SYNCHROTRONESRF BEAMLINE ID23-2ESRFID23-2

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
12.259.440.0897.44.5126192.227.1
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)
2.22.2570.3452.22.91538

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 REPLACEMENTTHROUGHOUT2.259.41261966495.170.209290.207370.24794RANDOM13.122
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]
0.630.310.63-0.94
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.936
r_dihedral_angle_3_deg14.142
r_dihedral_angle_4_deg13.885
r_scbond_it8.09
r_scangle_it7.793
r_mcbond_it6.865
r_mcangle_it6.449
r_dihedral_angle_1_deg4.872
r_angle_refined_deg1.333
r_nbtor_refined0.291
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.936
r_dihedral_angle_3_deg14.142
r_dihedral_angle_4_deg13.885
r_scbond_it8.09
r_scangle_it7.793
r_mcbond_it6.865
r_mcangle_it6.449
r_dihedral_angle_1_deg4.872
r_angle_refined_deg1.333
r_nbtor_refined0.291
r_symmetry_vdw_refined0.252
r_symmetry_hbond_refined0.225
r_nbd_refined0.218
r_xyhbond_nbd_refined0.14
r_chiral_restr0.107
r_bond_refined_d0.014
r_gen_planes_refined0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1852
Nucleic Acid Atoms
Solvent Atoms62
Heterogen Atoms10

Software

Software
Software NamePurpose
REFMACrefinement