1XUK

TRYPSIN-BABIM-SULFATE, PH 5.9

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.9		SYNTHETIC MOTHER LIQUOR = 75% SATURATED MAGNESIUM SULFATE, 25 % 1.0 M MES ADJUSTED TO PH 5.9; SATURATED IN BABIM, COMPLEX PRODUCED BY SOAKING TRYPSIN-BENZAMIDINE CO-CRYSTAL.

Crystal Properties
Matthews coefficient	Solvent content
2.33	21.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.8	α = 90
b = 58.7	β = 90
c = 67.6	γ = 90

Symmetry
Space Group	P 21 21 21

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	RIGAKU			M

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

Data Collection

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	1.87	1.95	33.5

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		1.8		1	11673			0.13	0.13	0.171

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	26.3
x_angle_deg	2.9
x_bond_d	0.015
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	208
Heterogen Atoms	31

Software

Software
Software Name	Purpose
MSC	data collection
X-PLOR	model building
X-PLOR	refinement
MSC	data reduction
X-PLOR	phasing