2PRS

Structure and metal binding properties of ZnuA, a periplasmic zinc transporter from Escherichia coli

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	293	30 % (w/v) PEG 4000, 5 % isopropanol, 0.1 M HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.47	50.17

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 91.377	α = 90
b = 78.073	β = 91.37
c = 86.366	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	IMAGE PLATE	MAR scanner 345 mm plate	mirrors	2006-04-07	M	SINGLE WAVELENGTH
2	1
3	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.1		ALS	5.0.1
2	SYNCHROTRON	APS BEAMLINE 19-ID		APS	19-ID
3	SYNCHROTRON	APS BEAMLINE 23-ID-D		APS	23-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.7	28.8	97.2	0.053		3.6		64618			32.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.7	1.76	85.5		0.323		3.1	5643

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	ZnZnuA in space group P212121	1.7	28.8	64618	64597	3254	97	0.213	0.211	0.25	RANDOM	32.48

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]
0.04		-0.18	1.4		-1.45

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.948
r_dihedral_angle_4_deg	16.565
r_dihedral_angle_3_deg	13.809
r_dihedral_angle_1_deg	5.665
r_scangle_it	2.856
r_scbond_it	1.773
r_mcangle_it	1.263
r_angle_refined_deg	1.22
r_mcbond_it	0.756
r_nbtor_refined	0.301

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.948
r_dihedral_angle_4_deg	16.565
r_dihedral_angle_3_deg	13.809
r_dihedral_angle_1_deg	5.665
r_scangle_it	2.856
r_scbond_it	1.773
r_mcangle_it	1.263
r_angle_refined_deg	1.22
r_mcbond_it	0.756
r_nbtor_refined	0.301
r_nbd_refined	0.205
r_symmetry_vdw_refined	0.156
r_xyhbond_nbd_refined	0.128
r_symmetry_hbond_refined	0.111
r_chiral_restr	0.081
r_metal_ion_refined	0.064
r_bond_refined_d	0.009
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4160
Nucleic Acid Atoms
Solvent Atoms	445
Heterogen Atoms	3

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
HKL-2000	data reduction
PHASER	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.