1CPI

REGIOSELECTIVE STRUCTURAL AND FUNCTIONAL MIMICRY OF PEPTIDES. DESIGN OF HYDROLYTICALLY STABLE CYCLIC PEPTIDOMIMETIC INHIBITORS OF HIV-1 PROTEASE

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.5		pH 5.5

Crystal Properties
Matthews coefficient	Solvent content
2.12	41.94

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.3	α = 90
b = 58.8	β = 90
c = 62.3	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	289	IMAGE PLATE	RIGAKU		1993-12-10	M

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

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	2.05	51	94	0.071		3		11539		1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		2.05	8	2	11271		94	0.163	0.163	0.237	20.9

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]

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	26.9
x_scangle_it	2.5
x_mcangle_it	2
x_scbond_it	2
x_angle_deg	1.59
x_mcbond_it	1.5
x_improper_angle_d	1.42
x_bond_d	0.009
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1541
Nucleic Acid Atoms
Solvent Atoms	95
Heterogen Atoms	15

Software

Software
Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
PROCESS	data reduction
X-PLOR	phasing