3QNX

Orthorhombic form of human IgA1 Fab fragment, sharing same Fv as IgG


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP3.82931.8M (NH4)2SO4, 0.1M PO4/citrate, pH 3.8, vapor diffusion, sitting drop, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.6954.33

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 49.78α = 90
b = 95.85β = 90
c = 107.29γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray108IMAGE PLATEMAR scanner 345 mm plate2009-06-18MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU MICROMAX-007 HF1.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
12.247.9251000.1049.83.5268582685833.23
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Rrim I (All)Rpim I (All)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.22.321000.490.490.580.3051.63.53861

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 (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 3M8O2.218.152677126771135299.750.18370.18370.18150.2241RANDOM33.7879
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]
1.43724.1694-5.6066
RMS Deviations
KeyRefinement Restraint Deviation
t_other_torsion18.1
t_omega_torsion3.46
t_angle_deg1.22
t_bond_d0.01
t_dihedral_angle_d
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion
RMS Deviations
KeyRefinement Restraint Deviation
t_other_torsion18.1
t_omega_torsion3.46
t_angle_deg1.22
t_bond_d0.01
t_dihedral_angle_d
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion
t_pseud_angle
t_chiral_improper_torsion
t_sum_occupancies
t_utility_distance
t_utility_angle
t_utility_torsion
t_ideal_dist_contact
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3288
Nucleic Acid Atoms
Solvent Atoms234
Heterogen Atoms18

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
BUSTER-TNTrefinement
PDB_EXTRACTdata extraction
MAR345dtbdata collection
AMoREphasing
BUSTERrefinement