Experiment: 2XT4

Structure of the pentapeptide repeat protein AlbG, a resistance factor for the topoisomerase poison albicidin.

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2XT2	PDB ENTRY 2XT2

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7		COMBINING PROTEIN, 2 UL OF 15 MG ML-1, 20 MM TRIS PH 8.0, 50 MM NACL, 1 MM DTT, 1MM EDTA WITH PRECIPITANT, 100 MM AMMONIUM TARTRATE PH 7.0, 12% PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.31	47.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.532	α = 90
b = 65.623	β = 90
c = 105.917	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	93	IMAGE PLATE	RIGAKU RAXIS IV	MIRRORS		M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

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	2.4	40	99.4	0.04	15.7	4.3		16626			50.82

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	2.4	2.52	96		0.31	3.3	3.7

Refinement

Statistics
Diffraction ID	Structure Solution 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)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 2XT2	2.394	25.179	16077	806	96.49	0.2082	0.2039	0.1986	0.2928	0.2854

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]
11.6326			-1.5543		-10.0783

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	16.195
f_angle_d	1.364
f_chiral_restr	0.084
f_bond_d	0.012
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2993
Nucleic Acid Atoms
Solvent Atoms	25
Heterogen Atoms

Software

Software
Software Name	Purpose
PHENIX	refinement
MOSFLM	data reduction
SCALA	data scaling
PHENIX	phasing