3FMY | pdb_00003fmy

Structure of the C-terminal domain of the E. coli protein MQSA (YgiT/b3021)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	277	20% PEG 300, 5% PEG 8000, 10% glycerol, 0.1M Tris, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
2	VAPOR DIFFUSION, SITTING DROP	7.5	277	40% PEG 300, 0.1M Hepes, 0.2M NaCl, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.573	α = 90
b = 39.573	β = 90
c = 78.306	γ = 120

Symmetry
Space Group	P 31 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	CCD	ADSC QUANTUM 210	Toroidal focusing mirror	2008-07-18	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	ADSC QUANTUM 210	Toroidal focusing mirror	2008-09-28	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X6A	1.0	NSLS	X6A
2	SYNCHROTRON	NSLS BEAMLINE X6A	0.9322, 0.9794, 0.9788	NSLS	X6A

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	1.4	50	99.6	0.032	31.5	5.7	14613	14556

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)
	1.4	1.42	99.2		0.232	6.19	4.5

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	1.4	20.77	14529	13813	716	99.71	0.15654	0.15532	0.1622	0.18151	0.1919	RANDOM	12.155

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]
0.02	0.01		0.02		-0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	25.507
r_dihedral_angle_3_deg	12.363
r_dihedral_angle_4_deg	8.215
r_sphericity_free	5.727
r_scangle_it	5.56
r_dihedral_angle_1_deg	4.893
r_scbond_it	4.157
r_sphericity_bonded	3.252
r_mcangle_it	2.97
r_mcbond_it	2.228
r_rigid_bond_restr	2.211
r_angle_refined_deg	1.413
r_mcbond_other	1.295
r_angle_other_deg	0.935
r_symmetry_vdw_other	0.277
r_nbd_refined	0.245
r_symmetry_vdw_refined	0.241
r_nbtor_refined	0.191
r_nbd_other	0.19
r_xyhbond_nbd_refined	0.174
r_symmetry_hbond_refined	0.163
r_nbtor_other	0.089
r_chiral_restr	0.085
r_bond_refined_d	0.011
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	571
Nucleic Acid Atoms
Solvent Atoms	80
Heterogen Atoms

Software

Software
Software Name	Purpose
HKL-2000	data collection
SOLVE	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling