Experiment: 3LA4

Crystal structure of the first plant urease from Jack bean (Canavalia ensiformis)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1E9Z	PDB ENTRY 1E9Z (Homology model of Jack bean urease derived from H.pylori urease)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.8	294	1.6M ammonium phosphate dibasic, 100mM Tris pH 8.8, 10% ethylene glycol, VAPOR DIFFUSION, HANGING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
3.02	59.22

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 138.565	α = 90
b = 138.565	β = 90
c = 198.355	γ = 120

Symmetry
Space Group	P 63 2 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	MAR CCD 165 mm		2009-06-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ELETTRA BEAMLINE 5.2R	1.000	ELETTRA	5.2R

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	2.05	20	99.9	0.1119	4.3	16.8		145620			12.8

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)
	2.05	2.18	99.5		0.3273	1.2	13	21695

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-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1E9Z (Homology model of Jack bean urease derived from H.pylori urease)	2.05	20	133559	133090	2609	99.5	0.183	0.1885	0.201	0.208	RANDOM	17.5

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]
2.51	2.51	-5.02	1.97

RMS Deviations
Key	Refinement Restraint Deviation
DIHEDRAL ANGLES	24.6
bond angles	1.5
bond length	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6328
Nucleic Acid Atoms
Solvent Atoms	522
Heterogen Atoms	16

Software

Software
Software Name	Purpose
AMoRE	phasing
CNS	refinement
AUTOMAR	data reduction