1Z1X

Crystal Structure of a novel disintegrin from Saw-scaled viper at 3.2 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	298	1.2M AMMONIUM SULFATE, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
4	70

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 91.368	α = 90
b = 91.368	β = 90
c = 54.941	γ = 90

Symmetry
Space Group	I 41 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	298	IMAGE PLATE	MARRESEARCH	MIRROR	2005-02-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	3.2	64.55	99.6	0.2	8.3	10	2062	2058			55.2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	3.2	3.32	97.6		0.544	3.9		191

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	1rmr	3.2	64	2058	1967	91	99.13	0.236	0.23594	0.23432	0.2648	RANDOM	50.852

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]
0.79			0.79		-1.58

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	23.149
r_scangle_it	7.273
r_scbond_it	4.07
r_dihedral_angle_1_deg	3.343
r_mcangle_it	3.116
r_angle_refined_deg	2.35
r_mcbond_it	1.652
r_angle_other_deg	1.414
r_symmetry_vdw_refined	0.538
r_symmetry_vdw_other	0.419
r_nbd_other	0.284
r_nbd_refined	0.276
r_chiral_restr	0.137
r_xyhbond_nbd_refined	0.132
r_xyhbond_nbd_other	0.038
r_bond_refined_d	0.024
r_gen_planes_refined	0.016
r_gen_planes_other	0.006
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	490
Nucleic Acid Atoms
Solvent Atoms	8
Heterogen Atoms

Software

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