2QHZ

Crystal structure of protease inhibitor, MIT-1-AC87 in complex with wild type HIV-1 protease

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.2	298	126 mM Sodium Phosphate, 63 mM sodium citrate, 24-29% ammonium sulphate, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.1	41.49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 50.737	α = 90
b = 58.011	β = 90
c = 61.84	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	200	IMAGE PLATE	RIGAKU RAXIS IV	osmic mirrors	2005-12-22	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	1.85	50	95.4	0.065	6.5	12.3	5.6		15443

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	THROUGHOUT	pdb entry 1F7A	1.85	42.3	14637	14637	777	95.48	0.16749	0.16749	0.16558	0.20521	RANDOM	21.822

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]
-1.46			0.34		1.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.302
r_dihedral_angle_4_deg	15.454
r_dihedral_angle_3_deg	10.353
r_dihedral_angle_1_deg	6.007
r_scangle_it	1.614
r_angle_refined_deg	1.227
r_scbond_it	1.05
r_angle_other_deg	0.717
r_mcangle_it	0.658
r_mcbond_it	0.479
r_symmetry_vdw_other	0.182
r_nbd_other	0.178
r_nbd_refined	0.175
r_nbtor_refined	0.163
r_xyhbond_nbd_refined	0.136
r_symmetry_hbond_refined	0.114
r_symmetry_vdw_refined	0.107
r_mcbond_other	0.098
r_chiral_restr	0.082
r_nbtor_other	0.078
r_bond_refined_d	0.008
r_gen_planes_refined	0.004
r_gen_planes_other	0.003
r_bond_other_d	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	1506
Nucleic Acid Atoms
Solvent Atoms	166
Heterogen Atoms	65

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
AMoRE	phasing