1SI0

Crystal Structure of Mannheimia haemolytica Ferric iron-Binding Protein A in a closed conformation

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	277	HEPES, isopropanol, PEG 4000, glycerol, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.84	56.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 97.67	α = 90
b = 192.941	β = 90
c = 43.352	γ = 90

Symmetry
Space Group	C 2 2 21

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		2003-07-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.3	1.00	ALS	5.0.3

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.35	95.35	95			90250	85709

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.35	1.4	99.7

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1Q35	1.35	95.35	90250	85709	4526	99.86	0.1599	0.15989	0.15913	0.17416	RANDOM	11.398

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]
0.71			-0.72		0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.542
r_scangle_it	4.886
r_scbond_it	3.03
r_mcangle_it	2.44
r_mcbond_it	1.534
r_angle_refined_deg	1.096
r_angle_other_deg	0.718
r_symmetry_vdw_other	0.308
r_nbd_other	0.236
r_nbd_refined	0.21
r_symmetry_vdw_refined	0.167
r_xyhbond_nbd_refined	0.092
r_nbtor_other	0.082
r_symmetry_hbond_refined	0.08
r_chiral_restr	0.063
r_bond_refined_d	0.006
r_metal_ion_refined	0.006
r_gen_planes_refined	0.004
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2526
Nucleic Acid Atoms
Solvent Atoms	509
Heterogen Atoms	9

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
CCP4	data scaling
MOLREP	phasing