3BX4

Crystal structure of the snake venom toxin aggretin

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	293	2.4M ammonium sulphate, 25mM ammonium acetate, 2% isopropanol, pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.68	54.06

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 64.318	α = 90
b = 91.305	β = 90
c = 118.916	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 QUANTUM 4	mirrors	2003-02-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2	0.933	ESRF	ID14-2

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	1.7	14.91	100				77418		2.6

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	1.7	1.744	100

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 1FVU	1.7	14.91	73565	73565	3853	100	0.20404	0.20404	0.20236	0.2357	RANDOM	23.968

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]
0.03			-0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.643
r_dihedral_angle_4_deg	18.582
r_dihedral_angle_3_deg	14.68
r_dihedral_angle_1_deg	6.428
r_scangle_it	4.251
r_scbond_it	2.929
r_mcangle_it	2.173
r_angle_refined_deg	1.876
r_mcbond_it	1.337
r_nbtor_refined	0.307
r_symmetry_vdw_refined	0.217
r_nbd_refined	0.214
r_symmetry_hbond_refined	0.195
r_xyhbond_nbd_refined	0.179
r_chiral_restr	0.135
r_bond_refined_d	0.02
r_gen_planes_refined	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4189
Nucleic Acid Atoms
Solvent Atoms	324
Heterogen Atoms	51

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing