4E8C

Crystal structure of streptococcal beta-galactosidase in complex with galactose

X-RAY DIFFRACTION

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.29	46.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 80.351	α = 90
b = 82.374	β = 106.84
c = 99.596	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	MARMOSAIC 225 mm CCD		2011-04-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRF BEAMLINE BL17U	0.9791	SSRF	BL17U

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.95	50	96.8			91359	88435		-3	25.04

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.95	2.02	96.8		0.062	0.062	13.3	2.4	88435

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	4E8D	1.95	50	87941	4395	96.98	0.2068	0.2049	0.243	RANDOM	40.5586

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]
-4.85		-1.83	7.39		-3.6

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.875
r_dihedral_angle_4_deg	18.255
r_dihedral_angle_3_deg	12.195
r_dihedral_angle_1_deg	5.56
r_scangle_it	4.575
r_mcangle_it	3.928
r_scbond_it	3.344
r_mcbond_it	2.985
r_angle_refined_deg	0.941
r_chiral_restr	0.064

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.875
r_dihedral_angle_4_deg	18.255
r_dihedral_angle_3_deg	12.195
r_dihedral_angle_1_deg	5.56
r_scangle_it	4.575
r_mcangle_it	3.928
r_scbond_it	3.344
r_mcbond_it	2.985
r_angle_refined_deg	0.941
r_chiral_restr	0.064
r_bond_refined_d	0.006
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9688
Nucleic Acid Atoms
Solvent Atoms	592
Heterogen Atoms	114

Software

Software
Software Name	Purpose
ADSC	data collection
AMoRE	phasing
REFMAC	refinement
HKL-2000	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.