1PUG

Structure of E. coli Ybab

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.5	291	1.9M Ammonium Sulfate 0.1MSodium HEPES pH 7.5 5% Ethylene Glycol, VAPOR DIFFUSION, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
3.13	60.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.866	α = 90
b = 84.236	β = 90
c = 86.636	γ = 90

Symmetry
Space Group	P 21 21 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	MARRESEARCH		2003-05-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.9798	APS	31-ID

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	1.9	20	99.3	0.073			37158	36898		-0.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.9	1.97	94.5

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SIR	THROUGHOUT	2.2	20	22948	22865	1177	99.64	0.21584	0.21211	0.28412	RANDOM	63.383

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]
2.41			-3.67		1.26

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	8.222
r_scangle_it	6.845
r_scbond_it	3.966
r_mcangle_it	3.134
r_angle_refined_deg	2.407
r_mcbond_it	1.776
r_angle_other_deg	1.187
r_symmetry_hbond_refined	0.414
r_symmetry_vdw_other	0.369
r_symmetry_vdw_refined	0.324
r_nbd_refined	0.27
r_nbd_other	0.267
r_xyhbond_nbd_refined	0.23
r_chiral_restr	0.142
r_nbtor_other	0.104
r_bond_refined_d	0.032
r_gen_planes_other	0.014
r_gen_planes_refined	0.012
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2492
Nucleic Acid Atoms
Solvent Atoms	163
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing
RESOLVE	model building
REFMAC	refinement
RESOLVE	phasing