1L3F

Thermolysin in the Absence of Substrate has an Open Conformation

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	8TLN	PDB MODEL 8TLN

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	298	MES, dimethylsulfoxide, NaCl, Zn Acetate, pH 6.00, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
3.6	65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 97.052	α = 90
b = 97.052	β = 90
c = 106.583	γ = 90

Symmetry
Space Group	P 41 21 2

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			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	.9778	SSRL	BL9-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.3	25	96.7	0.103	0.096	4.4	9.1		22468			64

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.3	2.36	79.2		0.42	0.54	1.4	3.5

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-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB MODEL 8TLN	2.3	25	22468	1138	96.7	0.202	0.302	RANDOM	72.1

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]
-1.99			-1.99		3.98

RMS Deviations
Key	Refinement Restraint Deviation
o_dihedral_angle_d	3.5
o_angle_deg	3.2
o_improper_angle_d	0.024
o_bond_d	0.016
o_bond_d_na
o_bond_d_prot
o_angle_d
o_angle_d_na
o_angle_d_prot
o_angle_deg_na
o_angle_deg_prot
o_dihedral_angle_d_na
o_dihedral_angle_d_prot
o_improper_angle_d_na
o_improper_angle_d_prot
o_mcbond_it
o_mcangle_it
o_scbond_it
o_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2427
Nucleic Acid Atoms
Solvent Atoms	127
Heterogen Atoms	7

Software

Software
Software Name	Purpose
AMoRE	phasing
MOSFLM	data reduction
CCP4	data scaling