1ZBV

Crystal Structure of the goat signalling protein (SPG-40) complexed with a designed peptide Trp-Pro-Trp at 3.2A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.8	298	25mM Tris HCl, 50mM NaCl, 19% ethanol, pH 7.8, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
2.8	56.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.97	α = 90
b = 66.345	β = 90
c = 108.028	γ = 90

Symmetry
Space Group	P 21 21 21

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	2004-10-09	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	20	87.1	0.2	4.8		6804	6789			31

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)
1	3.2	3.27	90.5		0.7	2.1

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	1qzo	3.21	19.88	6804	6463	326	100	0.174	0.17326	0.17153	0.20934	RANDOM	34.1

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]
-0.39			0.39		-0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	20.063
r_scangle_it	3.806
r_mcangle_it	2.558
r_scbond_it	2.26
r_angle_refined_deg	1.67
r_dihedral_angle_1_deg	1.632
r_mcbond_it	1.357
r_angle_other_deg	1.347
r_symmetry_vdw_other	0.292
r_nbd_refined	0.28
r_nbd_other	0.263
r_xyhbond_nbd_refined	0.15
r_symmetry_hbond_refined	0.143
r_symmetry_vdw_refined	0.131
r_chiral_restr	0.121
r_nbtor_other	0.115
r_xyhbond_nbd_other	0.1
r_bond_refined_d	0.015
r_gen_planes_refined	0.006
r_gen_planes_other	0.004
r_bond_other_d	0.003
r_dihedral_angle_2_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2913
Nucleic Acid Atoms
Solvent Atoms	72
Heterogen Atoms	28

Software

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