6A79

Crystal structure of the fifth immunoglobulin domain (Ig5) of human Robo1 in complex with the mutant scFv fragment (P103A) of murine monoclonal antibody B5209B

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	293	85mM Tris-HCl (pH 8.5), 27.5% (w/v) PEG 4000, 170mM lithium sulfate monohydrate, 670mM sodium thiocyanate, 15% (v/v) glycerol

Crystal Properties
Matthews coefficient	Solvent content
2.46	49.98

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.766	α = 90
b = 150.219	β = 90
c = 66.852	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	RAYONIX MX300HE		2013-07-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL44XU	0.9000	SPring-8	BL44XU

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	2.3	50	95.1	7.4	5.6		30034

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	2.3	2.38

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2.31	50	28519	1493	94	0.27374	0.27266	0.29471	RANDOM	27.941

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]
-1.36			-0.58		1.93

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.386
r_dihedral_angle_3_deg	18.16
r_dihedral_angle_4_deg	16.472
r_dihedral_angle_1_deg	8.759
r_long_range_B_refined	6.417
r_long_range_B_other	6.357
r_scangle_other	2.977
r_mcangle_it	2.856
r_mcangle_other	2.855
r_scbond_it	1.769
r_scbond_other	1.756
r_mcbond_it	1.693
r_mcbond_other	1.692
r_angle_refined_deg	1.608
r_angle_other_deg	1.047
r_chiral_restr	0.088
r_bond_refined_d	0.013
r_gen_planes_refined	0.006
r_bond_other_d	0.003
r_gen_planes_other	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4866
Nucleic Acid Atoms
Solvent Atoms	333
Heterogen Atoms	10

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
Coot	model building
PHASER	phasing