1OSG

Complex between BAFF and a BR3 derived peptide presented in a beta-hairpin scaffold

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1KXG	1KXG with the waters removed

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.7	292	20% PEG 3350, 1.0 M LiCl, 0.1M sodium cacodylate, pH 6.7, VAPOR DIFFUSION, HANGING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
3.18	61.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 121.633	α = 90
b = 121.633	β = 90
c = 157.214	γ = 120

Symmetry
Space Group	P 65

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MARRESEARCH		2002-11-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL7-1	1.08	SSRL	BL7-1

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	30	99.6	0.081	10.5	3.5	26356	26356		-3

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	3.11	98.8		0.41	2.5	3.5	2630

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	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	1KXG with the waters removed	3	30	-3	23768	2536	99.57	0.21992	0.21288	0.28633	random	31.339

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]
0.19	0.1		0.19		-0.29

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.766
r_scangle_it	1.722
r_mcangle_it	1.678
r_angle_refined_deg	1.357
r_scbond_it	1.042
r_mcbond_it	0.931
r_angle_other_deg	0.775
r_symmetry_vdw_other	0.261
r_nbd_other	0.234
r_nbd_refined	0.197
r_xyhbond_nbd_refined	0.154
r_symmetry_vdw_refined	0.109
r_nbtor_other	0.088
r_chiral_restr	0.077
r_symmetry_hbond_refined	0.023
r_bond_refined_d	0.012
r_gen_planes_refined	0.004
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_dihedral_angle_2_deg
r_xyhbond_nbd_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7507
Nucleic Acid Atoms
Solvent Atoms	20
Heterogen Atoms	4

Software

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