1MMI

E. COLI DNA POLYMERASE BETA SUBUNIT

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2POL	PDB ENTRY 2POL

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	298	100 mM Na/H MES, 50 to 60 mM CaCl2, 30% v/v PEG 400, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
2.42	49.13

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 80.012	α = 90
b = 66.595	β = 114.02
c = 80.779	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 4		2001-12-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	1.00000	APS	14-BM-C

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	1.85	50		0.056		1.92	62043	62043		-2

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)
	1.85	1.92	91.7		0.467	1.75	1.84

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	PDB ENTRY 2POL	1.848	50	62026	58907	3119	93.13	0.19119	0.18839	0.24461	RANDOM	26.719

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]
-0.88		0.37	1.67		-0.49

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	20.324
r_scangle_it	9.547
r_dihedral_angle_1_deg	8.103
r_scbond_it	6.38
r_mcangle_it	3.975
r_mcbond_it	2.545
r_angle_refined_deg	1.37
r_angle_other_deg	0.718
r_symmetry_hbond_other	0.605
r_symmetry_vdw_other	0.371
r_xyhbond_nbd_other	0.349
r_symmetry_hbond_refined	0.344
r_symmetry_vdw_refined	0.297
r_nbd_other	0.293
r_nbd_refined	0.26
r_xyhbond_nbd_refined	0.253
r_chiral_restr	0.109
r_nbtor_other	0.094
r_gen_planes_refined	0.022
r_gen_planes_other	0.014
r_bond_refined_d	0.008
r_bond_other_d	0.003
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5865
Nucleic Acid Atoms
Solvent Atoms	665
Heterogen Atoms

Software

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