2JET

Crystal structure of a trypsin-like mutant (S189D , A226G) chymotrypsin.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7	293	VAPOR DIFFUSION METHOD, 0.1M HEPES, PH 7.0, 30% PEG6000 AND PROTEIN (15 MG/ML) WITH BENZAMIDINE TWOFOLD EXCESS MIXED 1:1, 20 C

Crystal Properties
Matthews coefficient	Solvent content
1.9	35.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 34.69	α = 90
b = 64.351	β = 102.09
c = 44.224	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	CCD	ADSC QUANTUM 4	MIRRORS	2005-02-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

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	2.2	64.42	98.5	0.09	10.2	3.1		9753		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	2.2	2.32	95.8		0.44	2.3	2.8

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	PDB ENTRY 1KDQ	2.2	43.23	9145	461	98.5	0.279	0.276	0.334	RANDOM	44.1

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]
-0.13		0.43	-0.32		0.63

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.622
r_dihedral_angle_3_deg	11.69
r_dihedral_angle_4_deg	6.371
r_dihedral_angle_1_deg	4.57
r_angle_other_deg	1.107
r_angle_refined_deg	0.824
r_nbtor_refined	0.156
r_nbd_other	0.155
r_nbd_refined	0.145
r_symmetry_vdw_other	0.128
r_chiral_restr	0.114
r_scangle_it	0.113
r_nbtor_other	0.078
r_symmetry_vdw_refined	0.074
r_xyhbond_nbd_refined	0.07
r_scbond_it	0.07
r_mcangle_it	0.048
r_mcbond_it	0.041
r_symmetry_hbond_refined	0.019
r_bond_refined_d	0.005
r_bond_other_d	0.001
r_gen_planes_refined	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1700
Nucleic Acid Atoms
Solvent Atoms	67
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing