8AQP

Structure of Human Aldose Reductase Mutant A299G/L300A with a Citrate Molecule Bound in the Anion Binding Pocket

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	291	50 mM Di-Ammoniumhydrogen citrate pH 5: 15 mg/mL hAR, 5.2 mg/mL DTT, 0.7 mg/mL NADP+, 7.5% (w/v) PEG 6000 Reservoir: 120 mM Di-Ammoniumhydrogen citrate pH 5, 20% (w/v) PEG 6000

Crystal Properties
Matthews coefficient	Solvent content
2.17	43.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.352	α = 90
b = 66.531	β = 91.927
c = 49.461	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		2020-02-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.2	0.9184	BESSY	14.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	0.96	47.33	95	0.04	1	16.8	4		177459			7.07

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	0.96	1.02	86.2		0.36	0.87	2.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	4PRR	0.96	38.56	1.38	177456	3550	95	0.1121	0.1119	0.1215	11.38

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	18.3119
f_angle_d	1.0669
f_chiral_restr	0.0815
f_plane_restr	0.0082
f_bond_d	0.0063

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2489
Nucleic Acid Atoms
Solvent Atoms	438
Heterogen Atoms	81

Software

Software
Software Name	Purpose
PHENIX	refinement
Coot	model building
XDS	data reduction
XDS	data scaling
PHASER	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 R01GM133198.