Experiment: 4P29

Crystal structure of the LpoA N-terminal domain from Haemophilus influenzae

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	295	Drop contained 2 microliters protein and 2 microliters precipitant, and reservoir contained 1 ml of precipitant. Protein:10 mg/ml SeMet-containing LpoA(33-253) in 20 mM Tris-HCl pH 8.0, 0.1 % beta-mercaptoethanol, 1 mM EDTA, 0.1 mM benzamidine. Precipitant: 0.1 M MES pH 6.5, 0.2 M ammonium sulfate, 30% polyethylene monomethyl ether 5000. Cryoprotectant: 10% glycerol in precipitant solution

Crystal Properties
Matthews coefficient	Solvent content
2.31	46.82

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.03	α = 90
b = 51.18	β = 90
c = 198.61	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	165	CCD	MARMOSAIC 225 mm CCD		2003-11-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 5ID-B	0.97930	APS	5ID-B

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	1.95	43.24	98.8	0.074	10.4	5.42	68969	68183

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	1.95	2.02	100		0.39	3.1	4.71

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIR	FREE R-VALUE	1.95006475032	40.4911951555	1.40176591844	67992	3468	98.6578057664	0.185541194582	0.1837457267	0.1972	0.218489952193	0.2209	Random	62.436614756

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.0187120549
f_angle_d	0.719953716498
f_chiral_restr	0.0299184064662
f_bond_d	0.00485334397154
f_plane_restr	0.00316959475148

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3418
Nucleic Acid Atoms
Solvent Atoms	243
Heterogen Atoms	28

Software

Software
Software Name	Purpose
PHENIX	refinement
d*TREK	data scaling
SOLVE	phasing
RESOLVE	model building