7NBG

Crystal structure of human serine racemase in complex with DSiP fragment Z52314092, XChem fragment screen.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.2	293	100 mM MES pH 6.2 100 mM calcium chloride 5% ethylene glycol 20% PEG Smear Broad

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.09

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.11	α = 90
b = 154.76	β = 98.14
c = 85.4	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	PIXEL	DECTRIS PILATUS 6M-F		2018-07-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04-1	0.91587	Diamond	I04-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim 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	1.53	77.4	95.9	0.052	0.075	0.998	9	3.2		177718

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.53	1.57	87		0.804	0.453		2.6

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	6ZUJ	1.53	77.38	177667	8706	95.829	0.183	0.1823	0.202	28.092

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]
-0.039		0.601	-0.461		0.315

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.717
r_dihedral_angle_4_deg	18.352
r_dihedral_angle_3_deg	13.136
r_lrange_it	8.238
r_dihedral_angle_1_deg	6.075
r_scangle_it	1.946
r_mcangle_it	1.699
r_scbond_it	1.22
r_angle_refined_deg	1.151
r_mcbond_it	0.99
r_nbtor_refined	0.307
r_symmetry_xyhbond_nbd_refined	0.255
r_symmetry_nbd_refined	0.241
r_nbd_refined	0.214
r_metal_ion_refined	0.177
r_xyhbond_nbd_refined	0.144
r_chiral_restr	0.087
r_symmetry_metal_ion_refined	0.063
r_gen_planes_refined	0.005
r_bond_refined_d	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9368
Nucleic Acid Atoms
Solvent Atoms	941
Heterogen Atoms	159

Software

Software
Software Name	Purpose
REFMAC	refinement
DIALS	data reduction
Aimless	data scaling
MOLREP	phasing