1OLP

Alpha Toxin from Clostridium Absonum

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1CA1	PDB ENTRY 1CA1 WITH LOOPS OMITTED

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.5		100MM NA-CITRATE 5.6, 30% PEG 4000,200MM AMMONIUM ACETATE, pH 5.50

Crystal Properties
Matthews coefficient	Solvent content
2.42	48.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.956	α = 90
b = 193.592	β = 90
c = 92.686	γ = 90

Symmetry
Space Group	P 21 21 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 CCD	MIRRORS	2000-08-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

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	2.5	29.784	96.1	0.062	8	2.6		53292

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	2.5	2.63	90		0.195	2	2.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1CA1 WITH LOOPS OMITTED	2.5	29.75	53292	2840	100	0.181	0.178	0.18	0.237	0.24	RANDOM	31.89

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]
0.01			0.01		-0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.156
r_scangle_it	2.107
r_scbond_it	1.273
r_angle_refined_deg	1.183
r_mcangle_it	1.087
r_angle_other_deg	0.819
r_mcbond_it	0.577
r_nbd_other	0.225
r_symmetry_vdw_other	0.216
r_nbd_refined	0.197
r_symmetry_vdw_refined	0.18
r_xyhbond_nbd_refined	0.172
r_symmetry_hbond_refined	0.145
r_metal_ion_refined	0.106
r_chiral_restr	0.102
r_nbtor_other	0.084
r_bond_refined_d	0.01
r_gen_planes_refined	0.004
r_gen_planes_other	0.003
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11910
Nucleic Acid Atoms
Solvent Atoms	362
Heterogen Atoms	20

Software

Software
Software Name	Purpose
AMoRE	model building
REFMAC	refinement
SCALA	data scaling
MOLREP	phasing
CNS	phasing
COMO	phasing
AMoRE	phasing
EPMR	phasing
XFIT	phasing
O	phasing