4YW1

Crystal Structure of Streptococcus pneumoniae NanC, complex with Neu5Ac and Neu5Ac2en following soaking with 3'SL

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2VW2

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		298	16% PEG8000, 20% glycerol, 40mM monopotassium phosphate

Crystal Properties
Matthews coefficient	Solvent content
2.88	57.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 100.834	α = 90
b = 74.945	β = 96.35
c = 113.302	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	CCD	RIGAKU SATURN 944+		2013-09-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.54178

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	2.25	40	94.5	0.121	8.3	2.6		75606

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	2.25	2.29	97.8		0.482		2.5	3900

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	2vw2	2.25	40	71657	3803	94.15	0.2107	0.2087	0.2488	RANDOM	32.918

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]
-0.45		0.72	1.47		-1.15

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.098
r_dihedral_angle_3_deg	13.159
r_dihedral_angle_4_deg	12.011
r_dihedral_angle_1_deg	7.268
r_mcangle_it	2.316
r_mcbond_it	1.495
r_mcbond_other	1.494
r_angle_refined_deg	1.396
r_angle_other_deg	1.056
r_chiral_restr	0.078

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.098
r_dihedral_angle_3_deg	13.159
r_dihedral_angle_4_deg	12.011
r_dihedral_angle_1_deg	7.268
r_mcangle_it	2.316
r_mcbond_it	1.495
r_mcbond_other	1.494
r_angle_refined_deg	1.396
r_angle_other_deg	1.056
r_chiral_restr	0.078
r_bond_refined_d	0.009
r_gen_planes_refined	0.006
r_bond_other_d	0.004
r_gen_planes_other	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10444
Nucleic Acid Atoms
Solvent Atoms	857
Heterogen Atoms	84

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction

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 R01GM157729.