2NP9

Crystal structure of a dioxygenase in the Crotonase superfamily

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		Unbound form of the enzyme

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.6	293	pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 5.60

Crystal Properties
Matthews coefficient	Solvent content
6.47	80.98

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 139.86	α = 90
b = 156.66	β = 90
c = 171.02	γ = 90

Symmetry
Space Group	P 21 21 2

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		2006-07-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X26C		NSLS	X26C

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	2.4	50	98	0.13	12.8	1.07		143933			46.7

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.4	2.49	96.7		0.577

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	UNBOUND FORM OF THE ENZYME	2.45	50	128502	128502	6497	93	0.328	0.328	0.356	RANDOM	36.44

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]
7.052			9.298		-16.35

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	21.30016
c_scangle_it	2.442
c_improper_angle_d	2.04688
c_mcangle_it	1.719
c_scbond_it	1.699
c_angle_deg	1.4827
c_mcbond_it	1.052
c_bond_d	0.008
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9779
Nucleic Acid Atoms
Solvent Atoms	224
Heterogen Atoms	183

Software

Software
Software Name	Purpose
CBASS	data collection
AMoRE	phasing
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling