3ASI

Alpha-Neurexin-1 ectodomain fragment; LNS5-EGF3-LNS6

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	18% PEG3000, 0.1M sodium acetate and 0.3M sodium malonate pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293KK

Crystal Properties
Matthews coefficient	Solvent content
2.52	51.22

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 72.91	α = 90
b = 79.38	β = 90
c = 78.135	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	ADSC QUANTUM 315r		2006-10-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	1.0000	SPring-8	BL41XU

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	2.3	39.07	99.9	0.083	20.9	7.1	20732	20732		-3	28.8

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	2.3	2.42	100		0.271	6.2	7.2	2962

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1C4R	2.3	39.07	19697	19697	1035	99.97	0.1997	0.1997	0.1971	0.247	RANDOM	24.548

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]
3.16			-2.38		-0.78

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.307
r_dihedral_angle_4_deg	18.024
r_dihedral_angle_3_deg	14.725
r_dihedral_angle_1_deg	6.312
r_scangle_it	2.249
r_scbond_it	1.313
r_angle_refined_deg	1.124
r_mcangle_it	0.925
r_mcbond_it	0.476
r_chiral_restr	0.073
r_bond_refined_d	0.008
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3019
Nucleic Acid Atoms
Solvent Atoms	148
Heterogen Atoms	15

Software

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