8ADT

Rational design of a calcium-independent trypsin variant

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293.2	10 mg/ml Trypsin 0.2 M KNO3 22 % (w/v) PEG 3350) 14 days

Crystal Properties
Matthews coefficient	Solvent content
2.22	44.65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.473	α = 90
b = 57.473	β = 90
c = 105.01	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	101.2	CCD	RIGAKU SATURN 944+		2014-06-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.4	49.9766	99.57	0.069	0.4088	9.12533		39855			16.744

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.4	1.43			0.421

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1MTS	1.4	49.77	37858	1997	99.57	0.19362	0.19302	0.20525	RANDOM	18.941

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]
0.23	0.12		0.23		-0.75

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.575
r_dihedral_angle_3_deg	11.151
r_dihedral_angle_1_deg	5.857
r_long_range_B_refined	4.252
r_long_range_B_other	4.215
r_angle_other_deg	3.693
r_scangle_other	3.515
r_mcangle_it	2.581
r_mcangle_other	2.58
r_scbond_it	2.578
r_scbond_other	2.575
r_dihedral_angle_4_deg	2.323
r_mcbond_it	1.898
r_mcbond_other	1.898
r_angle_refined_deg	1.159
r_chiral_restr	0.041
r_bond_refined_d	0.006
r_gen_planes_refined	0.004
r_gen_planes_other	0.004
r_bond_other_d
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1571
Nucleic Acid Atoms
Solvent Atoms	189
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing