3R0W

Crystal Structures of Multidrug-resistant HIV-1 Protease in Complex with Mechanism-Based Aspartyl Protease Inhibitors.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.2	298	0.3 M NaCl, 0.1 M HEPES, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.48	50.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.727	α = 90
b = 45.727	β = 90
c = 102.149	γ = 90

Symmetry
Space Group	P 41

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	298	CCD	MAR CCD 165 mm		2008-09-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	1.0	APS	21-ID-F

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		0.04				22795

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	1.7	1.76	100

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 1TW7	1.7	18.98	21607	1169	99.46	0.20026	0.19786	0.24539	RANDOM	24.058

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]
-0.02			-0.02		0.05

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.726
r_dihedral_angle_4_deg	13.731
r_dihedral_angle_3_deg	12.866
r_dihedral_angle_1_deg	6.022
r_scangle_it	3.942
r_scbond_it	2.459
r_mcangle_it	1.78
r_angle_refined_deg	1.5
r_mcbond_it	1.155
r_angle_other_deg	0.367
r_nbtor_refined	0.308
r_symmetry_vdw_other	0.251
r_symmetry_vdw_refined	0.244
r_symmetry_hbond_refined	0.22
r_nbd_refined	0.197
r_nbd_other	0.169
r_xyhbond_nbd_refined	0.155
r_nbtor_other	0.099
r_chiral_restr	0.098
r_bond_refined_d	0.013
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1512
Nucleic Acid Atoms
Solvent Atoms	208
Heterogen Atoms	44

Software

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