4NOF

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

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1XED	Poly-alanine model of PDB code 1XED

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	3.5	298	Protein (20 mM Hepes, pH 7.5, 150 mM NaCl, 5% glycerol), Reservoir (0.1 M Citric Acid:NaOH pH 3.5, 25% (w/v) PEG 3350), Cryoprotection (30% Glycerol), Vapor Diffusion, Sitting Drop, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.27	45.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 101.388	α = 90
b = 35.365	β = 105.96
c = 73.238	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 315r	MIRRORS	2013-09-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	1.0750	NSLS	X29A

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	1.65	50	98.6	0.082	18.3	6	30181	30181			21.9

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	1.65	1.68	94		0.702	1.89	5	1467

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	Poly-alanine model of PDB code 1XED	1.65	50	30082	1522	98.62	0.181	0.18	0.1992	RANDOM	27.9053

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]
0.84		-0.77	1.15		-1.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.297
r_dihedral_angle_4_deg	21.406
r_dihedral_angle_3_deg	11.739
r_dihedral_angle_1_deg	6.358
r_mcangle_it	3.486
r_mcbond_it	2.163
r_mcbond_other	2.15
r_angle_refined_deg	1.531
r_angle_other_deg	0.768
r_chiral_restr	0.094

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.297
r_dihedral_angle_4_deg	21.406
r_dihedral_angle_3_deg	11.739
r_dihedral_angle_1_deg	6.358
r_mcangle_it	3.486
r_mcbond_it	2.163
r_mcbond_other	2.15
r_angle_refined_deg	1.531
r_angle_other_deg	0.768
r_chiral_restr	0.094
r_bond_refined_d	0.011
r_gen_planes_refined	0.007
r_bond_other_d	0.003
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1675
Nucleic Acid Atoms
Solvent Atoms	146
Heterogen Atoms	34

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
CBASS	data collection
HKL-3000	data reduction
SCALEPACK	data scaling
PHASER	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 R01GM157729.