2QEA

CRYSTAL STRUCTURE OF A PUTATIVE GENERAL STRESS PROTEIN 26 (JANN_0955) FROM JANNASCHIA SP. CCS1 AT 2.46 A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.6	277	NANODROP, 0.14M CaCl2, 30.0% Glycerol, 14.0% Isopropanol, 0.1M Acetate pH 4.6, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.75	55.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 73.673	α = 90
b = 73.673	β = 90
c = 367.524	γ = 120

Symmetry
Space Group	P 61 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	MARMOSAIC 325 mm CCD	Flat collimating mirror, toroid focusing mirror	2007-06-03	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.97905, 0.97920, 0.91837	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	2.46	29.604	99.8	0.131	0.131	5.2	6.4		22684

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	2.46	2.52	99.8		0.733	0.733	1	3.6	1588

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	MAD	THROUGHOUT	2.46	29.604	22598	1159	99.66	0.233	0.231	0.275	RANDOM	41.163

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]
-0.12	-0.06		-0.12		0.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	25.802
r_dihedral_angle_4_deg	10.641
r_dihedral_angle_3_deg	8.468
r_dihedral_angle_1_deg	2.746
r_scangle_it	2.71
r_scbond_it	1.846
r_angle_refined_deg	1.371
r_angle_other_deg	1.169
r_mcangle_it	1.093
r_mcbond_it	0.631
r_nbtor_refined	0.139
r_nbd_refined	0.127
r_symmetry_vdw_refined	0.124
r_nbd_other	0.117
r_symmetry_vdw_other	0.095
r_mcbond_other	0.087
r_chiral_restr	0.081
r_nbtor_other	0.066
r_xyhbond_nbd_refined	0.04
r_symmetry_metal_ion_refined	0.036
r_symmetry_hbond_refined	0.03
r_metal_ion_refined	0.02
r_bond_refined_d	0.011
r_gen_planes_refined	0.003
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3578
Nucleic Acid Atoms
Solvent Atoms	115
Heterogen Atoms	7

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SHELX	phasing
MolProbity	model building
SCALA	data scaling
PDB_EXTRACT	data extraction
MAR345	data collection
MOSFLM	data reduction
SHELXD	phasing
SOLVE	phasing