4NOB

Crystal structure of the 1st Ig domain from mouse Polymeric Immunoglobulin receptor [PSI-NYSGRC-006220]

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	298	Protein (20 mM Hepes, pH 7.5, 150 mM NaCl, 5% glycerol), Reservoir (0.2M MgCl2, 0.1M Bis-Tris-HCl, 25% (v/v) PEG 3350), Cryoprotection (33% Ethylene glycol), Vapor Diffusion, Sitting Drop, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.1	41.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 40.275	α = 90
b = 46.803	β = 90
c = 62.062	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS 6M	MIRRORS	2013-10-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	1.0750	NSLS	X25

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.51	50	99.4	0.077	8.1	11.9		18980

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.51	1.54	93.3		0.353		8	853

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1XED	1.51	37.37	18374	945	96.48	0.1625	0.161	0.1891	RANDOM	17.001

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]
-0.24			-0.32		0.56

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.652
r_dihedral_angle_4_deg	16.227
r_dihedral_angle_3_deg	12.295
r_dihedral_angle_1_deg	5.685
r_mcangle_it	3.184
r_angle_refined_deg	2.214
r_mcbond_it	1.933
r_mcbond_other	1.93
r_angle_other_deg	0.947
r_chiral_restr	0.138

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.652
r_dihedral_angle_4_deg	16.227
r_dihedral_angle_3_deg	12.295
r_dihedral_angle_1_deg	5.685
r_mcangle_it	3.184
r_angle_refined_deg	2.214
r_mcbond_it	1.933
r_mcbond_other	1.93
r_angle_other_deg	0.947
r_chiral_restr	0.138
r_bond_refined_d	0.023
r_gen_planes_refined	0.012
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	858
Nucleic Acid Atoms
Solvent Atoms	110
Heterogen Atoms	27

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
CBASS	data collection
HKL-3000	data reduction
MOLREP	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.