2ETD

Crystal structure of a lema protein (tm0961) from thermotoga maritima msb8 at 2.28 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION,SITTING DROP,NANODROP	6.3	277	0.2M NH4NO3, 20.0% PEG-3350, No Buffer pH 6.3 , VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.29	46.39

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 80.454	α = 90
b = 85.259	β = 90
c = 53.397	γ = 90

Symmetry
Space Group	C 2 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	ADSC QUANTUM 315		2005-09-09	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	1.0163, 0.9797, 0.9796	ALS	8.2.2

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	2.25	30	90.1	0.067		3.5		8126

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	2.25	2.33		62	0.332		3.5

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	2.28	26.7	7717	375	93.03	0.219	0.216	0.27	RANDOM	40.488

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]
-1.66			1.78		-0.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.773
r_dihedral_angle_4_deg	24.674
r_dihedral_angle_3_deg	15.049
r_scangle_it	8.617
r_scbond_it	5.965
r_dihedral_angle_1_deg	5.25
r_mcangle_it	3.354
r_mcbond_it	2.243
r_angle_refined_deg	1.362
r_angle_other_deg	0.835
r_mcbond_other	0.562
r_symmetry_vdw_other	0.386
r_nbd_refined	0.218
r_xyhbond_nbd_refined	0.199
r_nbtor_refined	0.182
r_symmetry_vdw_refined	0.181
r_nbd_other	0.168
r_symmetry_hbond_refined	0.133
r_nbtor_other	0.085
r_chiral_restr	0.076
r_bond_refined_d	0.016
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1106
Nucleic Acid Atoms
Solvent Atoms	62
Heterogen Atoms	1

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
PDB_EXTRACT	data extraction
DENZO	data reduction
HKL-2000	data scaling
SHELX	phasing
SHARP	phasing
REFMAC	refinement