2VDN

Re-refinement of Integrin AlphaIIbBeta3 Headpiece Bound to Antagonist Eptifibatide

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1TXV	PDB ENTRY 1TXV

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	277	11% PEG 3350, 0.7 M MAGNESIUM ACETATE, 0.1 M IMIDAZOLE, PH 6.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K

Crystal Properties
Matthews coefficient	Solvent content
3.8	67.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 149.593	α = 90
b = 149.593	β = 90
c = 175.683	γ = 120

Symmetry
Space Group	P 32 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	100	CCD	ADSC CCD	MIRROR	2003-10-04	M	SINGLE WAVELENGTH

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 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	2.9	50	100	0.15	14.9	7		50647

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	2.9	3	100		0.62	2.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	THROUGHOUT	PDB ENTRY 1TXV	2.9	47.19	46249	2421	96.1	0.166	0.163	0.213	RANDOM	44.6

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]
0.89	0.44		0.89		-1.33

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.968
r_dihedral_angle_4_deg	13.632
r_dihedral_angle_3_deg	11.724
r_dihedral_angle_1_deg	5.174
r_mcangle_it	2.14
r_scangle_it	2.062
r_mcbond_it	1.302
r_scbond_it	1.213
r_angle_refined_deg	0.922
r_angle_other_deg	0.759
r_nbd_refined	0.178
r_nbd_other	0.17
r_nbtor_refined	0.17
r_symmetry_vdw_other	0.167
r_symmetry_vdw_refined	0.133
r_xyhbond_nbd_refined	0.128
r_symmetry_hbond_refined	0.128
r_nbtor_other	0.078
r_chiral_restr	0.057
r_bond_refined_d	0.005
r_gen_planes_refined	0.002
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10342
Nucleic Acid Atoms
Solvent Atoms	364
Heterogen Atoms	205

Software

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