1MIY

Crystal structure of Bacillus stearothermophilus CCA-adding enzyme in complex with CTP

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICRODIALYSIS	7.5	277	NaCl, Tris, MgCl2, pH 7.5, MICRODIALYSIS at 277K

Crystal Properties
Matthews coefficient	Solvent content
3.23	61.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 105.552	α = 90
b = 105.552	β = 90
c = 182.745	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	MARRESEARCH		2001-03-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-ID-B	0.9789	APS	14-ID-B

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	3.5	20		0.048	0.048	32.6	10.14		15352		-2

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3.52	81.65	13534	1518	99.53	0.29104	0.29104	0.28644	0.33125	RANDOM	37.579

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]
-2.72	-1.36		-2.72		4.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.57
r_angle_refined_deg	1.46
r_symmetry_vdw_refined	0.288
r_nbd_refined	0.28
r_xyhbond_nbd_refined	0.195
r_symmetry_hbond_refined	0.135
r_chiral_restr	0.089
r_bond_refined_d	0.014
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_dihedral_angle_2_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_mcbond_it
r_mcangle_it
r_scbond_it
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	6224
Nucleic Acid Atoms
Solvent Atoms	34
Heterogen Atoms	62

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MLPHARE	phasing
REFMAC	refinement