4LKX

Humanized antibody 4B12 Fab complexed with a CemX segment

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2JIX	2JIX, 3AAZ
experimental model	PDB	3AAZ	2JIX, 3AAZ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	289	0.1M sodium acetate trihydrate, 25% PEG 4000, 0.2M ammonium sulfate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.52	51.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.045	α = 90
b = 107.156	β = 90
c = 110.215	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	100	IMAGE PLATE	MAR scanner 300 mm plate		2012-10-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSRRC BEAMLINE BL13C1	0.97622	NSRRC	BL13C1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.92	28.36	99.9	0.094	29.3	7.1	38689	38689

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	2JIX, 3AAZ	1.92	28.36	36692	1934	99.53	0.18212	0.17967	0.22852	RANDOM	33.443

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]
-1.41			3.65		-2.24

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.282
r_dihedral_angle_4_deg	22.893
r_dihedral_angle_3_deg	18.358
r_dihedral_angle_1_deg	8.497
r_angle_refined_deg	1.301
r_chiral_restr	0.126
r_gen_planes_refined	0.021
r_bond_refined_d	0.011
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
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_mcbond_it
r_mcbond_other
r_mcangle_it
r_mcangle_other
r_scbond_it
r_scbond_other
r_scangle_it
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3368
Nucleic Acid Atoms
Solvent Atoms	261
Heterogen Atoms

Software

Software
Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling