1CSB

Crystal structure of cathepsin b inhibited with CA030 at 2.1 angstroms resolution: A basis for the design of specific epoxysuccinyl inhibitors

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.51	α = 90
b = 34.15	β = 103.1
c = 85.53	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		IMAGE PLATE	MARRESEARCH		1993-11-13	M

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

Data Collection

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	8	2	24924			0.194	0.194

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_angle_deg	1.58
x_bond_d	0.012
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
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3876
Nucleic Acid Atoms
Solvent Atoms	542
Heterogen Atoms	52

Software

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