Experiment: 9RM3

Crystal structure of human CD22 Ig domains 1-3 in complex with modified sialoside 17

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5VKJ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		277	20% PEG 3350, 0.2 M ammonium sulphate

Crystal Properties
Matthews coefficient	Solvent content
2.93	58.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 97.256	α = 90
b = 114.081	β = 90
c = 155.274	γ = 90

Symmetry
Space Group	P 21 21 2

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	RAYONIX MX-300		2017-12-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CLSI BEAMLINE 08ID-1	0.97949	CLSI	08ID-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	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	2.85	49.202	99.8	0.14	0.175	0.993	4.45	13.21		40725

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.86	3.03			1.679	2.15	0.198

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.857	49.202	1.34	40655	1999	99.76	0.2441	0.2418	0.2467	0.2893	0.2872

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	12.997
f_angle_d	0.61
f_chiral_restr	0.045
f_plane_restr	0.004
f_bond_d	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9229
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	421

Software

Software
Software Name	Purpose
PHENIX	refinement
SCALEPACK	data scaling
XDS	data reduction
PHASER	phasing
PDB_EXTRACT	data extraction