1IZH

Inhibitor of HIV protease with unusual binding mode potently inhibiting multi-resistant protease mutants

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5HVP	PDB ENTRY 5HVP

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	278	MES, DTT, EDTA, NaN3, KCl, pH 6, VAPOR DIFFUSION, HANGING DROP, temperature 278K

Crystal Properties
Matthews coefficient	Solvent content
2.7	54.49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.452	α = 90
b = 85.756	β = 90
c = 46.746	γ = 90

Symmetry
Space Group	P 21 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MARRESEARCH		1997-07-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	ENRAF-NONIUS FR591	1.54178

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	1.9	50	95.9	0.065	12.3	4.74	18388	18388			22.772

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)
	1.9	1.97	91.3		0.376	3		1715

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	FOURIER SYNTHESIS	THROUGHOUT	PDB ENTRY 5HVP	1.9	43.03	18388	17421	948	95.89	0.18116	0.18116	0.17808	0.2408	RANDOM	23.734

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]
0.7			-0.66		-0.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.644
r_scangle_it	3.048
r_mcangle_it	2.489
r_scbond_it	1.938
r_angle_refined_deg	1.727
r_mcbond_it	1.613
r_angle_other_deg	0.736
r_nbd_other	0.275
r_symmetry_vdw_other	0.26
r_xyhbond_nbd_refined	0.199
r_nbd_refined	0.189
r_symmetry_hbond_refined	0.16
r_chiral_restr	0.111
r_symmetry_vdw_refined	0.096
r_nbtor_other	0.09
r_bond_refined_d	0.022
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1520
Nucleic Acid Atoms
Solvent Atoms	221
Heterogen Atoms	100

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement