4WRD

Crystal structure of Staphylcoccal nulease variant Delta+PHS V66E L125E at cryogenic temperature

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	277	20% MPD, 25mM potassium phosphate, calcium chloride, pdTp

Crystal Properties
Matthews coefficient	Solvent content
2.22	44.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 31.14	α = 90
b = 60.315	β = 94.05
c = 38.364	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	110	CCD	APEX II CCD	multi-layer optics	2014-08-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SEALED TUBE	OTHER	1.54

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	1.65	38.27	99.9	0.01	142.68	27.81	17155	17155			24.6

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	1.65	1.67	97.6		0.1398	6.63	8.71

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	3BDC	1.65	38.27	16239	864	99.68	0.1842	0.1823	0.22	RANDOM	20.713

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]
-1.02		0.53	-1.06		1.98

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.449
r_dihedral_angle_3_deg	12.889
r_dihedral_angle_4_deg	10.214
r_dihedral_angle_1_deg	6.587
r_mcangle_it	2.752
r_mcbond_it	1.987
r_mcbond_other	1.95
r_angle_refined_deg	1.62
r_angle_other_deg	0.741
r_chiral_restr	0.103

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.449
r_dihedral_angle_3_deg	12.889
r_dihedral_angle_4_deg	10.214
r_dihedral_angle_1_deg	6.587
r_mcangle_it	2.752
r_mcbond_it	1.987
r_mcbond_other	1.95
r_angle_refined_deg	1.62
r_angle_other_deg	0.741
r_chiral_restr	0.103
r_bond_refined_d	0.017
r_gen_planes_refined	0.011
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1036
Nucleic Acid Atoms
Solvent Atoms	94
Heterogen Atoms	26

Software

Software
Software Name	Purpose
SAINT	data scaling
SAINT	data reduction
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.