Experiment: 7QPL

Crystal structure of phosphoserine phosphatase (SerB) from Brucella melitensis in complex with phosphate and magnesium

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
in silico model	AlphaFold		Alphafold model

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.8	293	0.2M Sodium Formate, 0.1M Sodium phosphate pH 6.8, 22% w/v BCS PEG smear MMW, 10% v/v glycerol

Crystal Properties
Matthews coefficient	Solvent content
3.54	65.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 143.21	α = 90
b = 143.21	β = 90
c = 143.21	γ = 90

Symmetry
Space Group	I 21 3

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 EIGER X 16M		2020-11-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SOLEIL BEAMLINE PROXIMA 1	0.978565	SOLEIL	PROXIMA 1

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	1.77	38.27	95.42	0.09586	0.09705	0.01509	0.999	22.77	41.4		47522			39.61

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.77	1.833	54.56		2.942	2.978	0.4624	0.616	1.43	41.3

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-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	Alphafold model	1.77	38.27	45353		94.82	0.1578	0.1653	0.1833	0.1862	54

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
f_dihedral_angle_d	8.5136
f_angle_d	1.1376
f_chiral_restr	0.0662
f_plane_restr	0.0092
f_bond_d	0.0091

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2193
Nucleic Acid Atoms
Solvent Atoms	280
Heterogen Atoms	72

Software

Software
Software Name	Purpose
BUSTER	refinement
PHENIX	refinement
MxCuBE	data collection
autoPROC	data processing
PHASER	phasing
Coot	model building
XDS	data reduction
XSCALE	data scaling