5LQS

Structure of quinolinate synthase Y21F mutant in complex with substrate-derived quinolinate

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4P3X

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION		298	PEG3350, ammonium sulfate, oxaloacetate, DHAP, NaCl, anaerobic

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.06	α = 90
b = 48.74	β = 103.67
c = 60.25	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	ADSC QUANTUM 315r		2015-11-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM30A	0.979736	ESRF	BM30A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.9	43.73	98.6	0.094	0.989	15.2	3.6		23026

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	1.9	1.97	97.8		0.588	0.551	2.9	3.6

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	4P3X	1.9	40	21850	1175	98.58	0.17792	0.17594	0.21439	RANDOM	21.143

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]
0.37		-0.3	-0.3		0.07

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.833
r_dihedral_angle_4_deg	20.888
r_dihedral_angle_3_deg	13.553
r_long_range_B_refined	6.234
r_long_range_B_other	5.974
r_dihedral_angle_1_deg	5.64
r_scangle_other	3.182
r_mcangle_other	2.222
r_mcangle_it	2.213
r_scbond_it	1.931
r_scbond_other	1.931
r_angle_refined_deg	1.574
r_mcbond_it	1.4
r_mcbond_other	1.399
r_angle_other_deg	1.085
r_chiral_restr	0.096
r_bond_refined_d	0.012
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2401
Nucleic Acid Atoms
Solvent Atoms	285
Heterogen Atoms	22

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing