2I52

Crystal structure of protein PTO0218 from Picrophilus torridus, Pfam DUF372

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	298	0.2 M Calcium Chloride dihydrate, 0.1 M HEPES - Na pH 7.5, 28% v/v Polyethylene Glycol 400, pH 6.5, Vapor diffusion, Sitting drop, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.56	51.88

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 90.764	α = 90
b = 143.485	β = 90
c = 129.799	γ = 90

Symmetry
Space Group	C 2 2 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 4		2006-07-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4A	1.743	NSLS	X4A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	2.08	50	96.7	0.056	0.051	59.4	20.2	49920	49920			28.1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.08	2.15	78.4		0.223	0.224	9	4	3969

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	SAD	THROUGHOUT	2.08	40.2	49920	49892	2532	97.28	0.179	0.179	0.176	0.225	RANDOM	25.09

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]
-0.05			0.54		-0.49

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.897
r_dihedral_angle_4_deg	16.42
r_dihedral_angle_3_deg	12.173
r_dihedral_angle_1_deg	5.625
r_scangle_it	2.441
r_scbond_it	1.595
r_mcangle_it	1.155
r_angle_refined_deg	1.084
r_mcbond_it	0.704
r_nbtor_refined	0.304
r_nbd_refined	0.194
r_symmetry_metal_ion_refined	0.191
r_symmetry_vdw_refined	0.188
r_symmetry_hbond_refined	0.14
r_xyhbond_nbd_refined	0.137
r_metal_ion_refined	0.125
r_chiral_restr	0.078
r_bond_refined_d	0.01
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5608
Nucleic Acid Atoms
Solvent Atoms	597
Heterogen Atoms	37

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
CBASS	data collection
HKL-2000	data reduction
SHELXD	phasing
SHELXE	model building
CCP4	phasing
ARP/wARP	model building