1Q35

Crystal Structure of Pasteurella haemolytica Apo Ferric ion-Binding Protein A

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.9	277	PEG 3350, magnesium formate, pH 5.9, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 97.159	α = 90
b = 189.327	β = 90
c = 45.765	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		2002-12-18	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	1.2	95.35	95			123103	116923

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.2	1.24	93.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	1.2	35.28	123103	116923	6170	93.34	0.1721	0.17098	0.19511	RANDOM	12.006

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]
-0.05			-0.58		0.62

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.805
r_scangle_it	2.26
r_scbond_it	1.374
r_sphericity_bonded	1.313
r_sphericity_free	1.277
r_angle_refined_deg	1.094
r_mcangle_it	1.003
r_angle_other_deg	0.755
r_rigid_bond_restr	0.676
r_mcbond_it	0.578
r_symmetry_vdw_other	0.267
r_nbd_other	0.227
r_nbd_refined	0.201
r_symmetry_vdw_refined	0.126
r_symmetry_hbond_refined	0.082
r_nbtor_other	0.08
r_xyhbond_nbd_refined	0.076
r_chiral_restr	0.068
r_bond_refined_d	0.006
r_gen_planes_refined	0.004
r_gen_planes_other	0.003
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2521
Nucleic Acid Atoms
Solvent Atoms	618
Heterogen Atoms	4

Software

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