6TBI

Structure of a beta galactosidase with inhibitor

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4D1I

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		291	Sodium acetate

Crystal Properties
Matthews coefficient	Solvent content
2.68	54.17

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 99.12	α = 90.2
b = 115.91	β = 89.96
c = 116.103	γ = 90.08

Symmetry
Space Group	P 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 2M		2017-04-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04	0.9795	Diamond	I04

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	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	1.46	116.1	96.4	0.996	9.6	3.4		865389

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.46	1.48			0.662

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	4D1I	1.46	116.1	821933	43369	96.35	0.1282	0.1259	0.1718	RANDOM	22.723

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]
0.31	0.63	-0.4	-1.36	-0.61	1.05

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.449
r_dihedral_angle_4_deg	20.005
r_dihedral_angle_3_deg	11.998
r_dihedral_angle_1_deg	7.25
r_rigid_bond_restr	5.156
r_angle_refined_deg	1.979
r_angle_other_deg	1.608
r_chiral_restr	0.115
r_bond_refined_d	0.017
r_gen_planes_refined	0.014

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.449
r_dihedral_angle_4_deg	20.005
r_dihedral_angle_3_deg	11.998
r_dihedral_angle_1_deg	7.25
r_rigid_bond_restr	5.156
r_angle_refined_deg	1.979
r_angle_other_deg	1.608
r_chiral_restr	0.115
r_bond_refined_d	0.017
r_gen_planes_refined	0.014
r_gen_planes_other	0.003
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	33818
Nucleic Acid Atoms
Solvent Atoms	5125
Heterogen Atoms	256

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
DIALS	data reduction
Aimless	data scaling
REFMAC	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 R01GM157729.