3NXN

X-ray structure of ester chemical analogue 'covalent dimer' [Ile50,O-Ile50']HIV-1 protease complexed with KVS-1 inhibitor

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	293	0.1 M Citrate, 0.2 M Sodium Phosphate, 30% (w/v) Ammonium Sulfate, 10% (v/v) DMSO, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.12	41.86

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.871	α = 90
b = 57.644	β = 90
c = 61.64	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	110	CCD	ADSC QUANTUM 315		2007-07-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	0.90020	APS	14-BM-C

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	1.8	50	99.7	0.056	22.8	5.3		17520	102.9	102.9

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	1.8	1.86	99.9		0.404	4.51	4.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	1.8	20	16574	885	99.33	0.19513	0.19351	0.22511	RANDOM	20.292

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]
0.95			0.11		-1.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	44.064
r_dihedral_angle_4_deg	14.425
r_dihedral_angle_3_deg	13.452
r_dihedral_angle_1_deg	6.993
r_scangle_it	4.163
r_scbond_it	2.584
r_mcangle_it	1.834
r_angle_refined_deg	1.807
r_mcbond_it	1.17
r_angle_other_deg	0.928
r_mcbond_other	0.329
r_symmetry_hbond_refined	0.211
r_nbd_refined	0.21
r_nbd_other	0.206
r_symmetry_vdw_refined	0.199
r_nbtor_refined	0.178
r_symmetry_vdw_other	0.168
r_xyhbond_nbd_refined	0.126
r_chiral_restr	0.112
r_nbtor_other	0.093
r_bond_refined_d	0.018
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1543
Nucleic Acid Atoms
Solvent Atoms	98
Heterogen Atoms	76

Software

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