2W7N

Crystal Structure of KorA Bound to Operator DNA: Insight into Repressor Cooperation in RP4 Gene Regulation

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		291	0.5M (NH4)2SO4, 0.1M C6H5NA3O7 2H2O (PH 5.6), 1.0M LI2SO4 H2O, VAPOR DIFFUSION, HANGING DROP, 291 K

Crystal Properties
Matthews coefficient	Solvent content
3.6	65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 44.83	α = 90
b = 115.45	β = 114
c = 49.88	γ = 90

Symmetry
Space Group	P 1 21 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	MARRESEARCH	MIRRORS	2006-10-27	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1		BESSY	14.1

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	1.96	50	93.3	0.03	42.5	7.4		31085

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	1.96	2.08	70.1		0.07	17.4	5.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	NONE	1.85	57.74	32666	1753	87.2	0.172	0.17	0.18	0.201	0.21	RANDOM	28.79

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		-0.18	2.52		-1.67

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.705
r_dihedral_angle_4_deg	19.636
r_dihedral_angle_3_deg	11.336
r_dihedral_angle_1_deg	4.669
r_scangle_it	2.841
r_scbond_it	2.451
r_mcangle_it	1.577
r_angle_refined_deg	1.522
r_mcbond_it	1.232
r_angle_other_deg	0.905
r_symmetry_vdw_other	0.314
r_symmetry_vdw_refined	0.263
r_nbtor_refined	0.21
r_nbd_refined	0.199
r_nbd_other	0.173
r_xyhbond_nbd_refined	0.14
r_chiral_restr	0.136
r_symmetry_hbond_refined	0.112
r_nbtor_other	0.081
r_bond_refined_d	0.006
r_gen_planes_refined	0.004
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
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1479
Nucleic Acid Atoms	1464
Solvent Atoms	317
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
XDS	phasing