1ZLH

Crystal structure of the tick carboxypeptidase inhibitor in complex with bovine carboxypeptidase A

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	0.2M sodium cacodylate, 0.2M zinc acetate dihydrate, 7%(w/v) PEG 8000, 10%(w/v) dried dioxan, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K

Crystal Properties
Matthews coefficient	Solvent content
2.1	40.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.07	α = 90
b = 68.6	β = 104.72
c = 57.89	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	100	IMAGE PLATE	MAR scanner 345 mm plate	mirror	2004-02-07	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)	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	1.67	30	87	0.06		3.7	39265	34176	2	2

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)
	1.67	1.8	61.5		0.134			3786

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	MIR	THROUGHOUT	1.7	55.9	2	39265	34435	1832	92.44	0.1597	0.15561	0.15403	0.18532	RANDOM	12.551

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]
0.65		0.24	-0.26		-0.26

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.631
r_scangle_it	1.763
r_sphericity_free	1.309
r_angle_refined_deg	1.12
r_scbond_it	1.118
r_mcangle_it	0.843
r_angle_other_deg	0.778
r_sphericity_bonded	0.626
r_rigid_bond_restr	0.618
r_mcbond_it	0.467
r_nbd_other	0.24
r_symmetry_vdw_other	0.225
r_nbd_refined	0.192
r_symmetry_vdw_refined	0.178
r_xyhbond_nbd_refined	0.174
r_symmetry_hbond_refined	0.12
r_nbtor_other	0.083
r_chiral_restr	0.064
r_metal_ion_refined	0.023
r_bond_refined_d	0.007
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_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2901
Nucleic Acid Atoms
Solvent Atoms	379
Heterogen Atoms	5

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
XDS	data scaling
MOLREP	phasing