1O51

Crystal structure of a putative PII-like signaling protein (TM0021) from Thermotoga maritima at 2.50 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.6	293	2M ammonium sulfate, 0.1M tri-sodium citrate dihydrate pH 5.6, 0.2M potassium sodium tartrate tetrahydrate, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 293K, pH 5.60

Crystal Properties
Matthews coefficient	Solvent content
3.8	67.37

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 100.11	α = 90
b = 100.11	β = 90
c = 100.11	γ = 90

Symmetry
Space Group	P 43 3 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	APS-1	WATER COOLED FOCUSING 2ND CRYSTAL, ROSENBAUM-ROCK VERTICAL FOCUSING MIRROR	2002-10-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.97914, 0.97934	APS	19-BM

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.5	50	100	0.109	70.05	43.83		6359			51.99

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.5	2.59	100		0.588	10.64	0.57

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	SAD	THROUGHOUT	2.5	44.77	5544	787	100	0.19	0.184	0.229	RANDOM	35.09

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.257
r_dihedral_angle_4_deg	25.487
r_dihedral_angle_3_deg	17.152
r_dihedral_angle_1_deg	6.913
r_scangle_it	4.231
r_scbond_it	2.586
r_angle_refined_deg	1.784
r_mcangle_it	1.685
r_angle_other_deg	0.873
r_mcbond_it	0.858
r_nbd_refined	0.241
r_symmetry_vdw_other	0.222
r_xyhbond_nbd_refined	0.2
r_nbd_other	0.19
r_symmetry_vdw_refined	0.178
r_symmetry_hbond_refined	0.171
r_chiral_restr	0.092
r_nbtor_other	0.091
r_bond_refined_d	0.018
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	703
Nucleic Acid Atoms
Solvent Atoms	39
Heterogen Atoms	37

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
RESOLVE	model building
SOLVE	phasing
REFMAC	refinement
RESOLVE	phasing