1XPO

Structural mechanism of inhibition of the Rho transcription termination factor by the antibiotic bicyclomycin

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6.5	291	PEG 8000, Na Cacodylate, NaCl, glycerol, FOS-choline-12, pH 6.5, VAPOR DIFFUSION, temperature 18K

Crystal Properties
Matthews coefficient	Solvent content
3.16	60.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 211.933	α = 90
b = 111.37	β = 108.79
c = 161.033	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	CCD				M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.100	ALS	8.3.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	3.15	20				51310	50367		1

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	MOLECULAR REPLACEMENT	THROUGHOUT	3.15	20	50367	50367	2696	86.58	0.29013	0.28502	0.30594	RANDOM	89.209

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]
2.63		-1.41	0.38		-3.92

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	44.346
r_dihedral_angle_3_deg	19.013
r_dihedral_angle_4_deg	14.171
r_dihedral_angle_1_deg	3.856
r_angle_refined_deg	0.985
r_mcangle_it	0.669
r_mcbond_it	0.373
r_nbtor_refined	0.294
r_scangle_it	0.292
r_nbd_refined	0.188
r_scbond_it	0.183
r_symmetry_hbond_refined	0.164
r_xyhbond_nbd_refined	0.141
r_symmetry_vdw_refined	0.125
r_chiral_restr	0.054
r_metal_ion_refined	0.038
r_bond_refined_d	0.006
r_gen_planes_refined	0.003
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_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	19268
Nucleic Acid Atoms	237
Solvent Atoms
Heterogen Atoms	297

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing
REFMAC	refinement
CCP4	data scaling