5JCN

Structure and catalytic mechanism of monodehydroascorbate reductase, MDHAR, from Oryza sativa L. japonica

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		295	Tris, ammonium acetate, PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.46	49.93

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.635	α = 90
b = 85.112	β = 90
c = 133.443	γ = 90

Symmetry
Space Group	P 21 21 21

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 210		2015-06-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL44XU	0.9000	SPring-8	BL44XU

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	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	2.29	71.76	99.5	0.087	0.089	0.029	13	13.9		41172

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.3	2.34	100		0.502	0.699		14.9	2045

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	4H4Q	2.29	50	39174	1936	99.22	0.2082	0.2055	0.2636	RANDOM	75.271

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]
3.6			-1.34		-2.25

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.848
r_dihedral_angle_3_deg	19.22
r_dihedral_angle_4_deg	17.202
r_mcangle_it	8.212
r_dihedral_angle_1_deg	7.324
r_mcbond_it	6.205
r_mcbond_other	6.204
r_angle_refined_deg	2.038
r_angle_other_deg	1.062
r_chiral_restr	0.109

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.848
r_dihedral_angle_3_deg	19.22
r_dihedral_angle_4_deg	17.202
r_mcangle_it	8.212
r_dihedral_angle_1_deg	7.324
r_mcbond_it	6.205
r_mcbond_other	6.204
r_angle_refined_deg	2.038
r_angle_other_deg	1.062
r_chiral_restr	0.109
r_bond_refined_d	0.015
r_gen_planes_refined	0.008
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6465
Nucleic Acid Atoms
Solvent Atoms	109
Heterogen Atoms	218

Software

Software
Software Name	Purpose
HKL-2000	data collection
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
MOLREP	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.