3AHN

PZ PEPTIDASE A with Inhibitor 1

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	293	The purified protein solution, concentrated to about 20 mg/ml in 50 mM Tris-HCl (pH7.5), was incubated in the absence or presence of the inhibitor in 12% (w/v) PEG 4000, 0.5 M magnesium acetate, and 0.1 M Tris-HCl (pH 7.0) for five days by the hanging-drop vapor diffusion method at 293 K. The inhibitor at final concentrations were 0.5 mM., VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.37	48.06

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.379	α = 90
b = 194.148	β = 106.22
c = 59.924	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	93				2006-11-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E SUPERBRIGHT

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	19.97					104042

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	19.97	104042	5511	96.27	0.18888	0.18826	0.20038	RANDOM	20.023

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
r_dihedral_angle_2_deg	38.246
r_dihedral_angle_4_deg	14.888
r_dihedral_angle_3_deg	10.582
r_scangle_it	3.497
r_scbond_it	2.298
r_angle_refined_deg	1.337
r_mcangle_it	1.334
r_dihedral_angle_1_deg	1.313
r_mcbond_it	0.836
r_symmetry_hbond_refined	0.605
r_nbtor_refined	0.325
r_nbd_refined	0.221
r_symmetry_vdw_refined	0.156
r_chiral_restr	0.144
r_xyhbond_nbd_refined	0.102
r_gen_planes_refined	0.008
r_bond_refined_d	0.007
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9384
Nucleic Acid Atoms
Solvent Atoms	1414
Heterogen Atoms	106

Software

Software
Software Name	Purpose
CrystalClear	data collection
MOLREP	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling