3NQ6

Crystal structure of the mutant P180A of orotidine 5'-monophosphate decarboxylase from Methanobacterium thermoautotrophicum complexed with inhibitor 6-azaUMP

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3G18	PDB entry 3G18

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	293	25% PEG3350, 0.1M Tris-HCl, 0.2M magnesium chloride , pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K

Crystal Properties
Matthews coefficient	Solvent content
2.16	42.96

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.696	α = 90
b = 64.379	β = 115.5
c = 61.811	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 4		2007-09-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4A	0.97915	NSLS	X4A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	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	1.494	32.407	94.01	0.075			64373	64373

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 3G18	1.494	32.407	64373	64373	3260	94.01	0.1713	0.1713	0.1701	0.194	RANDOM

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]
-3.1297		-6.9075	1.1469		1.9827

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	19.986
f_angle_d	1.063
f_chiral_restr	0.071
f_bond_d	0.006
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3303
Nucleic Acid Atoms
Solvent Atoms	359
Heterogen Atoms	48

Software

Software
Software Name	Purpose
ADSC	data collection
BALBES	phasing
PHENIX	refinement
DENZO	data reduction
SCALEPACK	data scaling

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 R01GM157729.