8TJF

monovalent bispecific IgG antibodies through novel electrostatic steering mutations at the CH1-CL interface

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION		293	200 mM sodium chloride, 0.1 M Bis-Tris at pH 5.5, 25% w/v PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.27	45.93

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 71.783	α = 90
b = 78.698	β = 91.837
c = 75.658	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	PIXEL	DECTRIS PILATUS 6M		2021-02-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL14-1	0.9741	SSRL	BL14-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	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	2.1	39.35	99	0.127	0.998	11.1	6.9		48672

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.1	2.16			0.678

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.3	37.838	37133	844	98.782	0.209	0.2078	0.251	42.213

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]
0.941		-3.321	-3.182		2.449

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_6_deg	15.894
r_dihedral_angle_3_deg	15.429
r_lrange_other	10.096
r_lrange_it	10.093
r_dihedral_angle_1_deg	8.227
r_scangle_it	7.353
r_scangle_other	7.352
r_dihedral_angle_2_deg	7.23
r_mcangle_it	6.89
r_mcangle_other	6.889
r_scbond_it	4.879
r_scbond_other	4.878
r_mcbond_it	4.727
r_mcbond_other	4.727
r_angle_refined_deg	1.556
r_angle_other_deg	0.511
r_nbd_other	0.324
r_xyhbond_nbd_refined	0.231
r_symmetry_nbd_other	0.22
r_symmetry_nbd_refined	0.219
r_nbd_refined	0.205
r_symmetry_xyhbond_nbd_refined	0.186
r_nbtor_refined	0.18
r_ncsr_local_group_1	0.117
r_ncsr_local_group_2	0.1
r_symmetry_nbtor_other	0.091
r_chiral_restr	0.067
r_bond_refined_d	0.008
r_gen_planes_refined	0.008
r_symmetry_xyhbond_nbd_other	0.002
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6476
Nucleic Acid Atoms
Solvent Atoms	124
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
MOLREP	phasing