2Z2X

Crystal structure of mature form of Tk-subtilisin

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.6	277	0.1M Sodium Acetate trihydrate, 0.2M Ammonium Sulfate, 25% (w/v) PEG 4000, pH 4.6, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
1.95	37.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 46.055	α = 90
b = 60.958	β = 90
c = 91.91	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	100	CCD	RIGAKU JUPITER 210		2006-10-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL38B1	1.0	SPring-8	BL38B1

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	1.7	50	99.5	0.054	46.8			29017

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	1.7	1.76	99.1		0.222	7.6

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 2E1P	1.7	32.62	27357	1462	99.8	0.14002	0.13894	0.16025	RANDOM	12.305

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]
-0.02					0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	16.899
r_dihedral_angle_1_deg	5.008
r_scangle_it	4.278
r_scbond_it	2.756
r_angle_refined_deg	1.676
r_mcangle_it	1.601
r_mcbond_it	0.958
r_angle_other_deg	0.851
r_nbd_refined	0.281
r_symmetry_hbond_refined	0.272
r_symmetry_vdw_refined	0.223
r_nbd_other	0.209
r_xyhbond_nbd_refined	0.177
r_symmetry_vdw_other	0.171
r_metal_ion_refined	0.112
r_chiral_restr	0.111
r_bond_refined_d	0.023
r_gen_planes_refined	0.008
r_gen_planes_other	0.003
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2322
Nucleic Acid Atoms
Solvent Atoms	299
Heterogen Atoms	7

Software

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