2F5Y

Crystal Structure of the PDZ Domain from Human RGS-3

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1I92	1I92.pdb, 1QAU.pdb
experimental model	PDB	1QAU	1I92.pdb, 1QAU.pdb

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	293	1.6M ammonium sulphate, 0.1M MES, 10% dioxane, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.45	49.71

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 91.11	α = 90
b = 44.14	β = 90
c = 49.857	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	MARMOSAIC 225 mm CCD		2005-10-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA	0.9788	SLS	X10SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.39	49.86	99.7				8381

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.4	2.49	98.8

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1I92.pdb, 1QAU.pdb	2.39	49.88	7967	7967	386	99.65	0.21698	0.21698	0.21481	0.22	0.26429	0.26	RANDOM	40.859

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]
-2.18			4.63		-2.45

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.29
r_dihedral_angle_3_deg	15.598
r_dihedral_angle_4_deg	13.663
r_dihedral_angle_1_deg	10.573
r_scangle_it	8.99
r_scbond_it	6.807
r_mcangle_it	4.152
r_mcbond_it	3.122
r_angle_other_deg	1.524
r_angle_refined_deg	1.484
r_mcbond_other	1.058
r_symmetry_vdw_other	0.272
r_chiral_restr	0.203
r_nbd_other	0.201
r_nbd_refined	0.2
r_nbtor_refined	0.166
r_xyhbond_nbd_refined	0.147
r_symmetry_vdw_refined	0.137
r_symmetry_hbond_refined	0.093
r_nbtor_other	0.088
r_bond_refined_d	0.011
r_gen_planes_refined	0.004
r_bond_other_d	0.003
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1267
Nucleic Acid Atoms
Solvent Atoms	42
Heterogen Atoms	10

Software

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