1J5U

CRYSTAL STRUCTURE OF AN ARCHEASE, POSSIBLE CHAPERONE (TM1083) FROM THERMOTOGA MARITIMA AT 2.0 A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.6	293	0.14 M CaCl2; 14 % isoprop; 0.07 M Acetate pH 4.6, 30 % Glycerol, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 293K, pH 4.60

Crystal Properties
Matthews coefficient	Solvent content
2.93	57.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 105.28	α = 90
b = 105.28	β = 90
c = 105.28	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	ADSC QUANTUM 315		2002-02-27	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.925223, 0.978645, 0.979029	SSRL	BL9-2

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	35.176	99.3	0.071	16.8	5.1		13851			32.5

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)
	2	2.11	98.4		0.277	4.9	4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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	MAD	THROUGHOUT	2	35.09	2	13890	13430	674	99	0.212	0.212	0.271	RANDOM	24.3

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
c_scangle_it	3.827
c_scbond_it	2.682
c_mcangle_it	2.005
c_angle_deg	1.54
c_mcbond_it	1.413
c_bond_d	0.011
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1065
Nucleic Acid Atoms
Solvent Atoms	118
Heterogen Atoms	1

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
CCP4	data reduction
CCP4	model building
SOLVE	phasing
RESOLVE	model building
CNS	refinement
CCP4	data scaling
CCP4	phasing
RESOLVE	phasing