8JFF

Crystal structure of Catabolite repressor acivator from E. coli in complex with HEPES

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION		293	HEPES, MgCl2, PEG 4000

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.33	α = 90
b = 108.9	β = 90
c = 123.93	γ = 90

Symmetry
Space Group	P 2 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS 300K		2017-09-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2	0.873	ESRF	ID23-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	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	2.89	108.9	90.1	0.046	0.046	0.997	12.5	1.8		12352

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.89	3.06			0.341	0.341	0.883

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	MOLECULAR REPLACEMENT	THROUGHOUT	2.89	54.51	11741	590	89.48	0.22678	0.22398	0.2827	RANDOM	70

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]
1.58			0.72		-2.3

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	15.352
r_dihedral_angle_1_deg	6.284
r_dihedral_angle_2_deg	4.751
r_long_range_B_refined	3.858
r_long_range_B_other	3.858
r_mcangle_it	2.142
r_mcangle_other	2.142
r_scangle_other	1.791
r_mcbond_it	1.195
r_mcbond_other	1.195
r_scbond_it	0.957
r_scbond_other	0.957
r_angle_refined_deg	0.746
r_angle_other_deg	0.27
r_chiral_restr	0.036
r_bond_refined_d	0.002
r_gen_planes_refined	0.002
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_dihedral_angle_4_deg
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4440
Nucleic Acid Atoms
Solvent Atoms	42
Heterogen Atoms	30

Software

Software
Software Name	Purpose
REFMAC	refinement
autoPROC	data reduction
Aimless	data scaling
MOLREP	phasing