3I8W

Crystal structure of a metallacarborane inhibitor bound to HIV protease

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1ZTZ	PDB entry 1ZTZ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6	292	0.1M CAPS pH 10.5, 1.2M Sodium Dihydrogen Phosphate, 0.2M pottasium hydrogen phosphate, 0.2M Lithium Sulphate, final pH 6.0, Cpr=7mg/ml, 5-fold molar inhibitor excess, VAPOR DIFFUSION, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
3.04	59.56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.158	α = 90
b = 92.343	β = 90
c = 48.952	γ = 90

Symmetry
Space Group	C 2 2 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	SBC-3		2005-10-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.975	APS	19-ID

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	1.7	50	95.4	0.049	55.87	8.2	19309	14821			21

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	1.7	1.76	70.1		0.558	4.3	5.9

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 1ZTZ	1.7	23.78	13436	703	95.3	0.17776	0.17602	0.21192	RANDOM	39.214

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]
-0.06			0.09		-0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.855
r_dihedral_angle_4_deg	11.972
r_dihedral_angle_3_deg	9.975
r_dihedral_angle_1_deg	5.081
r_angle_refined_deg	3.761
r_scangle_it	2.134
r_scbond_it	1.381
r_mcangle_it	1.039
r_mcbond_it	0.664
r_nbtor_refined	0.323
r_symmetry_vdw_refined	0.259
r_chiral_restr	0.232
r_nbd_refined	0.193
r_symmetry_hbond_refined	0.183
r_xyhbond_nbd_refined	0.131
r_gen_planes_refined	0.039
r_bond_refined_d	0.016
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	752
Nucleic Acid Atoms
Solvent Atoms	111
Heterogen Atoms	30

Software

Software
Software Name	Purpose
HKL-3000	data collection
MOLREP	phasing
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling