4QJ9

Crystal structure of inactive HIV-1 protease in complex with p1-p6 substrate variant (R452S)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.2	295	ammonium sulfate, sodium citrate, sodium phosphate, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
1.99	38.33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 50.861	α = 90
b = 57.883	β = 90
c = 61.756	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	100	CCD	ADSC QUANTUM 315		2011-10-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	0.979	APS	14-BM-C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.84	50	98.4	0.104	19.12	7.8	127538	16417		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.84	1.91	98.5		0.331	7.28	8.1	1593

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	1.83	42.23	127538	15544	836	98.03	0.15968	0.15717	0.20745	RANDOM	24.914

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]
-0.86			0.18		0.68

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.901
r_dihedral_angle_4_deg	18.541
r_dihedral_angle_3_deg	12.847
r_dihedral_angle_1_deg	6.932
r_long_range_B_refined	6.045
r_long_range_B_other	5.755
r_scangle_other	3.19
r_scbond_it	2.084
r_scbond_other	2.084
r_mcangle_it	1.865
r_mcangle_other	1.865
r_angle_refined_deg	1.508
r_mcbond_it	1.255
r_mcbond_other	1.253
r_angle_other_deg	0.627
r_chiral_restr	0.071
r_bond_refined_d	0.01
r_gen_planes_refined	0.007
r_bond_other_d	0.006
r_gen_planes_other	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1573
Nucleic Acid Atoms
Solvent Atoms	151
Heterogen Atoms	50

Software

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