3NJK

D116A mutant of SO1698 protein, an aspartic peptidase from Shewanella oneidensis, at pH5.5

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	291	1 M ammonium sulfate, 0.1 M Bis-Tris, 1% PEG-3350, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
3.48	64.69

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 99.013	α = 90
b = 99.013	β = 90
c = 101.037	γ = 120

Symmetry
Space Group	H 3 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	SBC-3		2005-11-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.9792	APS	19-BM

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	1.5	28.6	99.4	0.042	11.6	9.6	30415	30415			28.5

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	1.5	1.53	95.4		0.716	2.08	5.3	1444

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3N55	1.5	28.58	30386	30386	1550	99.28	0.155	0.155	0.154	0.167	RANDOM	24.873

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	-0.06		-0.13		0.19

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.408
r_dihedral_angle_3_deg	13.488
r_dihedral_angle_4_deg	12.688
r_dihedral_angle_1_deg	6.727
r_scangle_it	4.077
r_scbond_it	2.577
r_mcangle_it	1.946
r_angle_refined_deg	1.929
r_mcbond_it	1.146
r_angle_other_deg	1.021
r_mcbond_other	0.327
r_chiral_restr	0.115
r_bond_refined_d	0.02
r_gen_planes_refined	0.008
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	916
Nucleic Acid Atoms
Solvent Atoms	154
Heterogen Atoms	6

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
SBC-Collect	data collection
HKL-2000	data reduction
MOLREP	phasing