1QAV

Unexpected Modes of PDZ Domain Scaffolding Revealed by Structure of NNOS-Syntrophin Complex

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	298	VAPOR DIFFUSION, SITTING DROP, PH 8.5, 298K, 25% PEG4000, 0.2M SODIUM ACETATE, 100MM TRIS

Crystal Properties
Matthews coefficient	Solvent content
2.31	46.76

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 31.58	α = 90
b = 34.31	β = 90
c = 187.83	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	IMAGE PLATE	MARRESEARCH		1998-04-23	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	ADSC QUANTUM 4		1998-10-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL7-1		SSRL	BL7-1
2	SYNCHROTRON	ALS BEAMLINE 5.0.2		ALS	5.0.2

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	1.9	50	90.6	0.112	31.5	8	15442	15442		-3

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	1.9	1.97	78		0.088		3.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION		1.9	50	15162	15162	1508	89.3	0.2078	0.259	RANDOM

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
c_angle_d	1.34
c_angle_deg	1.34
c_bond_d	0.004
c_bond_d_na
c_bond_d_prot
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1503
Nucleic Acid Atoms
Solvent Atoms	148
Heterogen Atoms

Software

Software
Software Name	Purpose
SHARP	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling