2AVO

Kinetics, stability, and structural changes in high resolution crystal structures of HIV-1 protease with drug resistant mutations L24I, I50V, AND G73S

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1DAZ	PDB Entry 1DAZ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.2	295	CITRATE/PHOSPHATE BUFFER, PH 5.2, SATURATED AMMONIUM SULPHATE, 25%, VAPOR DIFFUSION, HANGING DROP, pH 5.20, temperature 295.0K

Crystal Properties
Matthews coefficient	Solvent content
2.2	43.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.465	α = 90
b = 58.57	β = 90
c = 61.644	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	95	CCD	MAR CCD 165 mm		2003-03-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	0.97105	APS	22-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	1.1	50	98.9	0.057	28.23	6.1	76386	75564

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	1.1	1.14	90		0.12	7.38	2.2

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R	PDB Entry 1DAZ	1.1	10	75384	70211	3766	99.2	0.11	0.107	0.108	0.138	RANDOM

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
45	1639.06	1778.47

RMS Deviations
Key	Refinement Restraint Deviation
s_non_zero_chiral_vol	0.098
s_zero_chiral_vol	0.094
s_approx_iso_adps	0.083
s_similar_adp_cmpnt	0.051
s_anti_bump_dis_restr	0.035
s_angle_d	0.034
s_from_restr_planes	0.0295
s_bond_d	0.015
s_rigid_bond_adp_cmpnt	0.005
s_similar_dist

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1512
Nucleic Acid Atoms
Solvent Atoms	264
Heterogen Atoms	68

Software

Software
Software Name	Purpose
ADSC	data collection
HKL-2000	data reduction
AMoRE	phasing
SHELXL-97	refinement
HKL-2000	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.