3G69

The crystal structure of Streptococcus pneumoniae Sortase C provides novel insights into catalysis as well as pilin substrate specificity

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	277	0.1 M MES pH 7.0 and 1.9 M ammonium sulfate, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.59	52.49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.578	α = 90
b = 96.554	β = 90
c = 98.818	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	ADSC QUANTUM 210		2008-09-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1	0.934	ESRF	ID14-1

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	2	49.39	99.2	0.011	16.1	7.2		31946			18.9

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)
	2	2.11	97.2		0.305	6.3	6.3	4490

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 3G66	2	43.6	30362	1620	99.23	0.19568	0.19228	0.25812	5%	25.036

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.841
r_dihedral_angle_3_deg	16.411
r_dihedral_angle_4_deg	15.487
r_dihedral_angle_1_deg	6.529
r_scangle_it	4.725
r_scbond_it	3.265
r_mcangle_it	2.176
r_angle_refined_deg	2.132
r_mcbond_it	1.401
r_nbtor_refined	0.316

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.841
r_dihedral_angle_3_deg	16.411
r_dihedral_angle_4_deg	15.487
r_dihedral_angle_1_deg	6.529
r_scangle_it	4.725
r_scbond_it	3.265
r_mcangle_it	2.176
r_angle_refined_deg	2.132
r_mcbond_it	1.401
r_nbtor_refined	0.316
r_symmetry_vdw_refined	0.258
r_symmetry_hbond_refined	0.251
r_nbd_refined	0.24
r_chiral_restr	0.226
r_xyhbond_nbd_refined	0.192
r_bond_refined_d	0.023
r_gen_planes_refined	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3076
Nucleic Acid Atoms
Solvent Atoms	467
Heterogen Atoms	34

Software

Software
Software Name	Purpose
ADSC	data collection
PHASER	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling

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.