3EKQ

Crystal structure of inhibitor saquinavir (SQV) in complex with multi-drug resistant HIV-1 protease (L63P/V82T/I84V) (referred to as ACT in paper)

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.2	300	pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 300K

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.69

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.164	α = 90
b = 59.291	β = 90
c = 61.389	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	300	IMAGE PLATE	RIGAKU RAXIS IV	Yale Mirrors	2008-01-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2	42	97.2	0.07	0.07	6	6.6	12975	12975

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		THROUGHOUT	PDB ENTRY 1F7A	2.2	20	9751	467	98.38	0.197	0.195	0.246	RANDOM	34.606

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]
-1.14			-1.19		2.33

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.441
r_dihedral_angle_4_deg	14.06
r_dihedral_angle_3_deg	13.593
r_dihedral_angle_1_deg	6.953
r_scangle_it	2.212
r_scbond_it	1.66
r_angle_refined_deg	1.273
r_mcbond_it	1.063
r_mcangle_it	1.022
r_angle_other_deg	0.714
r_nbd_other	0.205
r_nbd_refined	0.179
r_nbtor_refined	0.169
r_symmetry_vdw_refined	0.167
r_xyhbond_nbd_refined	0.158
r_symmetry_vdw_other	0.147
r_mcbond_other	0.124
r_nbtor_other	0.087
r_chiral_restr	0.077
r_symmetry_hbond_refined	0.072
r_xyhbond_nbd_other	0.032
r_bond_refined_d	0.008
r_bond_other_d	0.005
r_gen_planes_refined	0.004
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1477
Nucleic Acid Atoms
Solvent Atoms	74
Heterogen Atoms	59

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing