2ETH

Crystal structure of a marr-like transcriptional regulator (tm0816) from thermotoga maritima at 2.50 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5	277	2.0M (NH4)2SO4, 0.2M NaCl, 0.1M Cacodylate, pH 6.5, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.65	53.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 98.852	α = 90
b = 58.439	β = 125.91
c = 80.432	γ = 90

Symmetry
Space Group	C 1 2 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	MARMOSAIC 325 mm CCD		2005-07-25	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.91837, 0.97932	SSRL	BL9-2

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	2.3	47.19	87.3	0.058	0.058	9.6	3.5		14519

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	2.3	2.36		45.1	0.637	0.637	1.2	3.1

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 (All)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	2.3	45.03	13786	732	87.12	0.229	0.227	0.264	RANDOM	38.957

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]
1.19		0.29	-0.03		-0.82

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.283
r_dihedral_angle_4_deg	23.667
r_dihedral_angle_3_deg	19.126
r_dihedral_angle_1_deg	7.05
r_scangle_it	3.496
r_scbond_it	2.256
r_angle_refined_deg	1.562
r_mcangle_it	1.507
r_angle_other_deg	0.975
r_mcbond_it	0.929
r_symmetry_vdw_other	0.305
r_symmetry_vdw_refined	0.297
r_nbd_refined	0.236
r_mcbond_other	0.198
r_nbd_other	0.192
r_nbtor_refined	0.189
r_xyhbond_nbd_refined	0.181
r_symmetry_hbond_refined	0.164
r_nbtor_other	0.093
r_chiral_restr	0.091
r_bond_refined_d	0.017
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2142
Nucleic Acid Atoms
Solvent Atoms	47
Heterogen Atoms	1

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data reduction
CCP4	data scaling
SHARP	phasing