3IAW | pdb_00003iaw

Crystal structure of a chemically synthesized 203 amino acid 'covalent dimer' [Gly51;Aib51']HIV-1 protease molecule complexed with MVT-101 reduced isostere inhibitor at 1.6 A resolution

X-RAY DIFFRACTION

---

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
2.08	40.91

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.539	α = 90
b = 57.988	β = 90
c = 61.071	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	MARMOSAIC 300 mm CCD	Si(111) Double Crystal Monochrometer. Adjustable focusing mirrors in K-B geomet ry	2006-08-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-D	0.97932	APS	23-ID-D

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	1.6	50	98.1	0.077	39	9.5		24056

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	1.6	1.66	96.9		0.514	6.2	7	2425

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1.61	20	22682	1224	97.46	0.19796	0.1965	0.2413	0.22427	0.267	RANDOM	23.56

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]
0.07			-0.33		0.26

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.174
r_dihedral_angle_4_deg	18.91
r_dihedral_angle_3_deg	14.895
r_dihedral_angle_1_deg	6.847
r_scangle_it	3.94
r_scbond_it	2.553
r_mcangle_it	1.794
r_angle_refined_deg	1.658
r_mcbond_it	1.14
r_angle_other_deg	0.889
r_mcbond_other	0.31
r_symmetry_vdw_refined	0.237
r_nbd_refined	0.211
r_nbd_other	0.2
r_nbtor_refined	0.184
r_symmetry_vdw_other	0.148
r_xyhbond_nbd_refined	0.141
r_chiral_restr	0.1
r_symmetry_hbond_refined	0.093
r_nbtor_other	0.092
r_bond_refined_d	0.017
r_gen_planes_refined	0.008
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	1545
Nucleic Acid Atoms
Solvent Atoms	86
Heterogen Atoms	59

Software

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