5D4K

Crystal structure of the human polymeric Ig receptor (pIgR) ectodomain

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SSRL BEAMLINE BL12-2
Synchrotron site	SSRL
Beamline	BL12-2
Temperature [K]	100
Detector technology	PIXEL
Collection date	2012-05-10
Detector	DECTRIS PILATUS 6M
Wavelength(s)	0.9537
Spacegroup name	P 1 21 1
Unit cell lengths	61.258, 242.434, 63.046
Unit cell angles	90.00, 114.89, 90.00

Refinement procedure

Resolution	36.984 - 2.599
R-factor	0.2032
Rwork	0.201
R-free	0.25360
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1xed
RMSD bond length	0.010
RMSD bond angle	1.241
Data reduction software	XDS
Data scaling software	SCALA (3.3.20)
Phasing software	PHASER (2.4.0)
Refinement software	PHENIX

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	39.623	39.623	2.740
High resolution limit [Å]	2.599	8.220	2.600
Rmerge		0.021	0.559
Rmeas	0.070
Rpim	0.039	0.015	0.373
Total number of observations	145998	4461	21108
Number of reflections	49242
<I/σ(I)>	13.7	37.4	2.2
Completeness [%]	96.5	92.8	95.6
Redundancy	3	2.9	3

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	5.5	295	0.2 M ammonium sulfate, 0.1M BisTris pH 5.5, 31% Polyethylene glycol 3350