5M1P

Crystal structure of the large terminase nuclease from thermophilic phage G20c with bound Calcium

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	0.2 M Ammonium Tartrate, 0.1 M Bis-tris pH 5.5-6.5, 20% PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
1.93	36.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.453	α = 90
b = 53.597	β = 91.8
c = 69.852	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	PIXEL	DECTRIS PILATUS 6M-F		2016-04-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I02	0.9795	Diamond	I02

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	1.1	43.43	99.4	0.078	0.094	0.052	0.996	6.5	3.2		129065

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.1	1.12	99.4		0.97	0.401		3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	SAD	THROUGHOUT	1.1	43.43	122752	6288	99.3	0.2229	0.2222	0.2348	RANDOM	12.938

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]
0.84		-0.15	-0.21		-0.62

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.413
r_dihedral_angle_4_deg	11.115
r_dihedral_angle_3_deg	10.733
r_dihedral_angle_1_deg	5.89
r_angle_refined_deg	1.24
r_mcangle_it	0.927
r_angle_other_deg	0.864
r_mcbond_it	0.565
r_mcbond_other	0.562
r_chiral_restr	0.072

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.413
r_dihedral_angle_4_deg	11.115
r_dihedral_angle_3_deg	10.733
r_dihedral_angle_1_deg	5.89
r_angle_refined_deg	1.24
r_mcangle_it	0.927
r_angle_other_deg	0.864
r_mcbond_it	0.565
r_mcbond_other	0.562
r_chiral_restr	0.072
r_bond_refined_d	0.007
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2910
Nucleic Acid Atoms
Solvent Atoms	428
Heterogen Atoms	2

Software

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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.