3IQ3

Crystal Structure of Bothropstoxin-I complexed with polietilene glicol 4000 - crystallized at 283 K

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3HZD	PDB entry (3HZD)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	283	29% PEG 4000, 0.1M Tris HCl, 0.2M Lithium Sulfate, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 283.0K

Crystal Properties
Matthews coefficient	Solvent content
2.12	41.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.5	α = 90
b = 70.8	β = 102.2
c = 43.8	γ = 90

Symmetry
Space Group	P 1 21 1

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	MAR CCD 165 mm	Mirrors	2007-10-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	LNLS BEAMLINE D03B-MX1	1.425	LNLS	D03B-MX1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.55	50	98.2	0.067	0.067	12.73	3.3		32689		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.55	1.62	99.4		0.439	0.439	1.82	3.2

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry (3HZD)	1.55	18.32	30990	1652	98.25	0.20291	0.20049	0.24647	RANDOM	30.019

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

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.865
r_dihedral_angle_4_deg	19.752
r_dihedral_angle_3_deg	14.602
r_dihedral_angle_1_deg	5.661
r_sphericity_free	5.26
r_scangle_it	4
r_scbond_it	3.864
r_rigid_bond_restr	3.805
r_sphericity_bonded	2.987
r_mcangle_it	1.778
r_angle_refined_deg	1.632
r_mcbond_it	1.195
r_nbtor_refined	0.328
r_nbd_refined	0.249
r_symmetry_vdw_refined	0.184
r_xyhbond_nbd_refined	0.149
r_symmetry_hbond_refined	0.145
r_chiral_restr	0.088
r_bond_refined_d	0.014
r_gen_planes_refined	0.007
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1906
Nucleic Acid Atoms
Solvent Atoms	241
Heterogen Atoms	82

Software

Software
Software Name	Purpose
HKL-2000	data collection
AMoRE	phasing
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling