2H32

Crystal structure of the pre-B cell receptor

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7	293	12% MP5K, 200mM Zinc acetate, 100mM PIPES, pH 7.00, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.69	54.19

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 71.502	α = 90
b = 71.502	β = 90
c = 217.932	γ = 90

Symmetry
Space Group	P 43 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	ADSC QUANTUM 4		2002-05-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2		ALS	8.2.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.7	60	99.9	0.07	7	8.1		16403

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.7	2.85	100		0.368	2	8.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	PDB ENTRIES 1IT9 AND 1ADQ	2.7	20	14658	15425	824	99.7	0.269	0.267	0.295	RANDOM	70.8

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]
2.73			2.73		-5.45

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.031
r_dihedral_angle_3_deg	18.617
r_dihedral_angle_4_deg	14.688
r_dihedral_angle_1_deg	4.46
r_scangle_it	2.784
r_scbond_it	1.918
r_mcangle_it	1.364
r_angle_refined_deg	1.272
r_mcbond_it	0.926
r_nbtor_refined	0.314
r_nbd_refined	0.268
r_symmetry_hbond_refined	0.253
r_symmetry_metal_ion_refined	0.25
r_metal_ion_refined	0.242
r_symmetry_vdw_refined	0.23
r_xyhbond_nbd_refined	0.216
r_chiral_restr	0.088
r_bond_refined_d	0.014
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3427
Nucleic Acid Atoms
Solvent Atoms	106
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
PHASER	phasing
CNS	refinement
HKL-2000	data scaling
ADSC	data collection