1ZLI

Crystal structure of the tick carboxypeptidase inhibitor in complex with human carboxypeptidase B

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	293	0.1M bis-tris, 0.2M lithium sulfate monohydrate, 25%(w/v) PEG 3350, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 293.0K

Crystal Properties
Matthews coefficient	Solvent content
2.7	53.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 74.2	α = 90
b = 74.2	β = 90
c = 163.55	γ = 90

Symmetry
Space Group	P 43 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	mirror	2004-02-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU

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	2	30	87			31725	27650	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2	2.1	39.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	2.09	19.96	2	31725	26406	1411	99.89	0.161	0.15976	0.157	0.21435	RANDOM	19.376

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]
					-0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.143
r_scangle_it	2.423
r_scbond_it	1.481
r_angle_refined_deg	1.273
r_mcangle_it	0.931
r_angle_other_deg	0.813
r_mcbond_it	0.475
r_symmetry_vdw_other	0.241
r_nbd_other	0.239
r_nbd_refined	0.212
r_xyhbond_nbd_refined	0.148
r_symmetry_vdw_refined	0.117
r_symmetry_hbond_refined	0.111
r_nbtor_other	0.084
r_chiral_restr	0.08
r_bond_refined_d	0.01
r_gen_planes_refined	0.004
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
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_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2973
Nucleic Acid Atoms
Solvent Atoms	505
Heterogen Atoms	1

Software

Software
Software Name	Purpose
REFMAC	refinement
MADNESS	data reduction
XDS	data scaling
MOLREP	phasing