1EDH

E-CADHERIN DOMAINS 1 AND 2 IN COMPLEX WITH CALCIUM

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		9		1.2 M AMMONIUM SULFATE 0.01 M CALCIUM CHLORIDE 0.1 M TRIS-HCL BUFFER, PH 9.0 0.003 M SODIUM AZIDE

Crystal Properties
Matthews coefficient	Solvent content
3.23	62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 121.657	α = 90
b = 80.802	β = 116.65
c = 72.635	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	113	CCD	PRINCETON 2K		1995-04-03	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE A1		CHESS	A1

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	22	88.3	0.053	13	2.3		37605		2	26.08

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)
	2	2.07	63.6		0.146		1.59

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	THE INITIAL MODEL WAS OBTAINED FROM A COMBINATION OF MULTI-WAVELENGTH ANOMALOUS DIFFRACTION (MAD) AND REAL SPACE AVERAGING TECHNIQUES. THE MAD DATA WAS TAKEN AT THE MERCURY L(III) EDGE AT 3 DIFFERENT WAVELENGTHS (CHESS BEAMLINE F2). REAL SPACE AVERAGING WAS USED TO IMPROVE THE MAPS.	2	5	2	33174	3333		0.206	0.206	0.262	29.89

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
x_dihedral_angle_d	26.96
x_angle_deg	1.375
x_improper_angle_d	1.198
x_bond_d	0.006
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3228
Nucleic Acid Atoms
Solvent Atoms	249
Heterogen Atoms	8

Software

Software
Software Name	Purpose
PHASES	phasing
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling