1VJ7

Crystal structure of the bifunctional catalytic fragment of RelSeq, the RelA/SpoT homolog from Streptococcus equisimilis.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.5	298	PEG 8000, sodium chloride, magnesium chloride, TRIS, MES, GDP, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K, pH 8.50

Crystal Properties
Matthews coefficient	Solvent content
2.57	52.15

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 173.49	α = 90
b = 45.45	β = 109.83
c = 126.47	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	IMAGE PLATE	MARRESEARCH		1999-10-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE BW7B		EMBL/DESY, HAMBURG	BW7B

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	2.1	22.7	97.9	0.048	19	3.6		53798		-3

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	2.1	2.15	96.4		0.395	2.1	2.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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 + MIR(AS)	THROUGHOUT	2.1	22.7	52098	51035	2700	98	0.238	0.236	0.272	RANDOM	32.5

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]
-3.81		0.12	5.23		-1.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	19.523
r_scangle_it	5.133
r_dihedral_angle_1_deg	4.19
r_scbond_it	3.447
r_mcangle_it	2.492
r_angle_refined_deg	2.068
r_mcbond_it	1.609
r_angle_other_deg	0.972
r_symmetry_hbond_refined	0.338
r_nbd_refined	0.249
r_symmetry_vdw_other	0.248
r_nbd_other	0.218
r_xyhbond_nbd_refined	0.187
r_xyhbond_nbd_other	0.163
r_symmetry_vdw_refined	0.144
r_chiral_restr	0.11
r_nbtor_other	0.056
r_symmetry_hbond_other	0.04
r_bond_refined_d	0.014
r_gen_planes_refined	0.007
r_gen_planes_other	0.003
r_bond_other_d	0.001
r_dihedral_angle_2_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_metal_ion_refined
r_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5139
Nucleic Acid Atoms
Solvent Atoms	196
Heterogen Atoms	89

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing
SOLVE	phasing