4K74

The UmuC subunit of the E. coli DNA polymerase V shows a unique interaction with the beta-clamp processivity factor.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	285	200 mM calcium acetate, 200 mM MES pH 6.5, 14% PEG 6000, VAPOR DIFFUSION, SITTING DROP, temperature 285K

Crystal Properties
Matthews coefficient	Solvent content
2.31	46.65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.52	α = 90
b = 66.17	β = 114.99
c = 82.73	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	ADSC QUANTUM 315		2010-03-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I02	0.980	Diamond	I02

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	2.5	72.07		0.062	0.062	7.7	1.9	24817	46830			47.84

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.5	2.64	93.6		0.284	0.025	2.5	1.9	3670

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3D1G	2.5	70	22294	2470	91.06	0.23746	0.23145	0.2947	RANDOM	34.5

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]
-2.22		0.57	1.7		1

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.435
r_dihedral_angle_4_deg	19.692
r_dihedral_angle_3_deg	18.301
r_dihedral_angle_1_deg	6.171
r_scangle_it	2.665
r_scbond_it	1.525
r_angle_refined_deg	1.372
r_angle_other_deg	0.879
r_mcangle_it	0.854
r_mcbond_it	0.437
r_mcbond_other	0.102
r_chiral_restr	0.075
r_bond_refined_d	0.012
r_gen_planes_refined	0.006
r_gen_planes_other	0.002
r_bond_other_d	0.001
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_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5681
Nucleic Acid Atoms
Solvent Atoms	45
Heterogen Atoms

Software

Software
Software Name	Purpose
ADSC	data collection
BALBES	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling