1M5Y

Crystallographic Structure of SurA, a Molecular Chaperone that Facilitates Outer Membrane Porin Folding

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	303	0.75M ammonium sulphate, 100mM sodium citrate, pH 5.6, VAPOR DIFFUSION, HANGING DROP at 303K, VAPOR DIFFUSION, HANGING DROP, temperature 303.0K

Crystal Properties
Matthews coefficient	Solvent content
3.43	64.19

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 158.817	α = 90
b = 223.406	β = 90
c = 279.721	γ = 90

Symmetry
Space Group	F 2 2 2

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	flat mirror (vertical focusing)	2002-01-01	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	ADSC QUANTUM 4	flat mirror (vertical focusing)	2001-03-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.965	SSRL	BL11-1
2	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.965	SSRL	BL11-1

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
1,2	3	30	93.2	0.077	1.62	4.6	49633	45004		1	59

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)
	3	3.05	85.2		0.348	3.9		2114

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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		THROUGHOUT	3	29.8	3	49633	41869	3753	84.4	0.228	0.228	0.283	RANDOM	67.5

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]
-17.08			1		16.08

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	20.7
c_angle_deg	1.4
c_improper_angle_d	0.87
c_bond_d	0.008
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11914
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
CNS	phasing