2QDL

Crystal structure of scaffolding protein TtCheW from Thermoanaerobacter tengcongensis

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.4	293	0.1M acetate buffer (pH 5.4), 0.2M Sodium Nitrate, 10% (w/v) PEG 3350, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K

Crystal Properties
Matthews coefficient	Solvent content
2.14	42.48

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.214	α = 90
b = 62.235	β = 115.37
c = 55.142	γ = 90

Symmetry
Space Group	P 1 21 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	IMAGE PLATE	RIGAKU RAXIS IV		2006-10-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418

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	2.2	19.8	96	0.078		7.3		14589

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	2.2	2.25	93.6		0.286

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 2CH4	2.2	19.76	14589	764	95.94	0.19619	0.19423	0.23278	RANDOM	21.877

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]
-0.04		0.05	0.1		-0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	43.737
r_dihedral_angle_4_deg	15.572
r_dihedral_angle_3_deg	13.944
r_dihedral_angle_1_deg	6.455
r_scangle_it	4.239
r_scbond_it	2.764
r_mcangle_it	1.963
r_mcbond_it	1.522
r_angle_refined_deg	1.45
r_nbtor_refined	0.318
r_nbd_refined	0.232
r_symmetry_vdw_refined	0.226
r_xyhbond_nbd_refined	0.139
r_symmetry_hbond_refined	0.124
r_chiral_restr	0.091
r_bond_refined_d	0.014
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2345
Nucleic Acid Atoms
Solvent Atoms	103
Heterogen Atoms	18

Software

Software
Software Name	Purpose
REFMAC	refinement
CrystalClear	data collection
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing