3MW4

Crystal structure of beta-neurexin 3 without the splice insert 4

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	293	27% PEG3350, 0.2M lithium sulfate, 0.1M sodium acetate, pH 5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.21	61.65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 74.714	α = 90
b = 83.398	β = 90
c = 119.8	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	CCD	MAR CCD 165 mm	Si (111) crystal monochromator with vertical focusing mirror	2009-06-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4C	0.9795	NSLS	X4C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	50	85.6	0.12	0.12	14.2	5.9	59661	51068	1	1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2	20	48469	2591	99.71	0.18	0.17856	0.17667	0.21453	RANDOM	30.558

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]
-0.05			-0.65		0.7

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.613
r_dihedral_angle_4_deg	16.967
r_dihedral_angle_3_deg	13.189
r_dihedral_angle_1_deg	6.51
r_scangle_it	2.334
r_scbond_it	1.449
r_angle_refined_deg	1.196
r_mcangle_it	0.794
r_mcbond_it	0.497
r_nbtor_refined	0.301
r_symmetry_hbond_refined	0.194
r_nbd_refined	0.188
r_symmetry_vdw_refined	0.154
r_xyhbond_nbd_refined	0.141
r_chiral_restr	0.073
r_bond_refined_d	0.009
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4110
Nucleic Acid Atoms
Solvent Atoms	727
Heterogen Atoms	158

Software

Software
Software Name	Purpose
MAR345	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling