9Q45 | pdb_00009q45

Quaternary complex of PYCR1 with the allosteric inhibitor 1-benzyl-1H-1,3-benzodiazole-2-sulfonic acid in a remote site and NADH and (S)-tetrahydrofuran-2-carboxylic acid in the active site

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	8TCX

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	Resevoir contained 340-400 mM Li2SO4, 12-17% (w/v) PEG 3350, and 0.1 M HEPES at pH 7.5. Enzyme solution contained 7 mM 1-benzyl-1H-1,3-benzodiazole-2-sulfonic acid, 3.5 mM NADH, and 10 mM L-tetrahydrofuroic acid. Crystal was soaked in cryobuffer containing 20% PEG 200, 44 mM 1-benzyl-1H-1,3-benzodiazole-2-sulfonic acid, and 15 mM L-tetrahydrofuroic acid

Crystal Properties
Matthews coefficient	Solvent content
2.51	51.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 111.04	α = 90
b = 179.738	β = 106.77
c = 88.217	γ = 90

Symmetry
Space Group	C 1 2 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 EIGER2 S 16M		2025-02-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 24-ID-E	0.97920	APS	24-ID-E

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	1.79	91.51	99.4	0.997	8.6	6.9		304360

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	1.79	1.82			0.257	1.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	FREE R-VALUE	1.79	55.57	0.1	304360	15515	98.88	0.1981	0.1966	0.1866	0.2253	0.2174

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	13.316
f_angle_d	0.851
f_chiral_restr	0.049
f_plane_restr	0.008
f_bond_d	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9806
Nucleic Acid Atoms
Solvent Atoms	839
Heterogen Atoms	314

Software

Software
Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
PHENIX	phasing