1XUH

TRYPSIN-KETO-BABIM-CO+2, PH 8.2

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.2		SYNTHETIC MOTHER LIQUOR = 75% SATURATED MAGNESIUM SULFATE, 25 % 1.0 M TRIS ADJUSTED TO PH 8.2; SATURATED IN KETO-BABIM, 5.0 MM CO+2. COMPLEX PRODUCED BY SOAKING TRYPSIN-BENZAMIDINE CO-CRYSTAL.

Crystal Properties
Matthews coefficient	Solvent content
2.05	14.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.99	α = 90
b = 54.99	β = 90
c = 109.63	γ = 120

Symmetry
Space Group	P 31 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray		AREA DETECTOR	SIEMENS-NICOLET X100			M

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

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	2.45		76.4	0.128		2.1		7146

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.37	2.47	47.1

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		2.2		1	6599			0.135	0.135	0.188

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_improper_angle_d	27
x_angle_deg	3.3
x_bond_d	0.018
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_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	1629
Nucleic Acid Atoms
Solvent Atoms	125
Heterogen Atoms	33

Software

Software
Software Name	Purpose
SADIE	data collection
SAINT	data scaling
X-PLOR	model building
X-PLOR	refinement
SADIE	data reduction
SAINT	data reduction
X-PLOR	phasing