2AVV

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	6	295	CITRATE/PHOSPHATE BUFFER, PH 6.0, SATURATED AMMONIUM SULPHATE, 40%, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.19	43.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.27	α = 90
b = 62.72	β = 98.15
c = 59.22	γ = 90

Symmetry
Space Group	P 1 21 1

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	MARMOSAIC 225 mm CCD		2003-10-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	1.00	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	1.5	50	94.1	0.065	17.42	3.6	59830	56309

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)
	1.5	1.55	70.5		0.239	4.51	2.9

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	1.5	10	56005	48186	2798	94.4	0.1484	0.1383	0.1405	0.21	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
46	3282	3395.51

RMS Deviations
Key	Refinement Restraint Deviation
s_approx_iso_adps	0.077
s_non_zero_chiral_vol	0.056
s_zero_chiral_vol	0.048
s_similar_adp_cmpnt	0.035
s_anti_bump_dis_restr	0.028
s_angle_d	0.027
s_from_restr_planes	0.0249
s_bond_d	0.008
s_rigid_bond_adp_cmpnt	0.004
s_similar_dist

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3223
Nucleic Acid Atoms
Solvent Atoms	392
Heterogen Atoms	182

Software

Software
Software Name	Purpose
HKL-2000	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.