2R6G

The Crystal Structure of the E. coli Maltose Transporter


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1Q12PDB ENTRIES 1Q12 and 1OMP
experimental modelPDB 1OMPPDB ENTRIES 1Q12 and 1OMP

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.529327% PEG 400, 500mM NaCl, 100mM Sodium Hepes pH 7.5, 10mM betaine hydrochloride, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
3.4664.46

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 73.26α = 87.13
b = 95.86β = 82.43
c = 109.99γ = 75.75
Symmetry
Space GroupP 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 300 mm CCDSi(111) Double Crystal Monochromator. Adjustable focusing mirrors in K-B geometry2007-03-30MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 23-ID-D1.0332APS23-ID-D

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
12.85091.40.0920.0928.33.66652066520
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)
12.82.964.90.470.471.542.6

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 (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRIES 1Q12 and 1OMP2.847.45928858103118583.760.242230.241640.2714RANDOM83.877
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]
3.953.165.32-2.54-2.06-4.16
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.758
r_dihedral_angle_3_deg16.378
r_dihedral_angle_4_deg14.172
r_dihedral_angle_1_deg4.468
r_angle_refined_deg0.974
r_scangle_it0.386
r_nbtor_refined0.296
r_mcangle_it0.257
r_scbond_it0.228
r_nbd_refined0.176
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.758
r_dihedral_angle_3_deg16.378
r_dihedral_angle_4_deg14.172
r_dihedral_angle_1_deg4.468
r_angle_refined_deg0.974
r_scangle_it0.386
r_nbtor_refined0.296
r_mcangle_it0.257
r_scbond_it0.228
r_nbd_refined0.176
r_symmetry_vdw_refined0.167
r_mcbond_it0.143
r_xyhbond_nbd_refined0.107
r_symmetry_hbond_refined0.075
r_chiral_restr0.064
r_bond_refined_d0.006
r_gen_planes_refined0.002
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms14628
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms85

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
DMphasing
REFMACrefinement
PDB_EXTRACTdata extraction
Blu-Icedata collection
HKL-2000data reduction
HKL-2000data scaling