1BBZ

CRYSTAL STRUCTURE OF THE ABL-SH3 DOMAIN COMPLEXED WITH A DESIGNED HIGH-AFFINITY PEPTIDE LIGAND: IMPLICATIONS FOR SH3-LIGAND INTERACTIONS

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	3.1		CRYSTALS WITH DIMENSIONS 0.25X0.25X0.25 MM3 WERE OBTAINED AT ROOM TEMPERATURE BY VAPOUR DIFFUSION AGAINST A RESERVOIR CONTAINING 0.1 M CITRIC ACID PH 3.1, 2 M AMMONIUM SULPHATE, 0.2 M SODIUM CHLORIDE, AND 1MM DTT/EDTA. THE HANGING DROP CONTAINED 1:1 RATIO OF RESERVOIR AND PROTEIN-PEPTIDE SOLUTIONS., vapor diffusion

Crystal Properties
Matthews coefficient	Solvent content
2.31	46.68

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 46.68	α = 90
b = 73.79	β = 90
c = 80	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	120	IMAGE PLATE	MARRESEARCH		1996-10-05	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE BW7B		EMBL/DESY, HAMBURG	BW7B

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	1.6	39.3	99.7	0.058	0.058	15.1	6.59		226846			15.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.6	1.63	98.4		0.58	0.58	1.9	3.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-FACTOR	1ABO	1.65	8	1	31081			0.205	0.205	0.266	RANDOM	13.5

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_angle_deg	1.678
x_bond_d	0.01
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
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d
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	2126
Nucleic Acid Atoms
Solvent Atoms	269
Heterogen Atoms	20

Software

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