4Z0B

Crystal Structure of the Fab Fragment of Anti-ofloxacin Antibody and Exploration Its Receptor Binding Site

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	EVAPORATION		293	0.2M ammonium phosphate dibasic, 20% PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.36	47.85

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.828	α = 90
b = 53.528	β = 98.39
c = 129.103	γ = 90

Symmetry
Space Group	C 1 2 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	IMAGE PLATE	RIGAKU RAXIS IV++		2014-11-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007	1.5418

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	3.1	50	90	9	2.9		7100

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	1AR1	3.2	50	5895	272	85.94	0.2775	0.276	0.3086	RANDOM	55.508

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]
2.5		0.15	-0.85		-1.62

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.303
r_dihedral_angle_3_deg	13.647
r_dihedral_angle_4_deg	10.734
r_dihedral_angle_1_deg	5.452
r_mcangle_it	1.366
r_angle_refined_deg	0.94
r_mcbond_it	0.725
r_mcbond_other	0.725
r_angle_other_deg	0.66
r_chiral_restr	0.052

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.303
r_dihedral_angle_3_deg	13.647
r_dihedral_angle_4_deg	10.734
r_dihedral_angle_1_deg	5.452
r_mcangle_it	1.366
r_angle_refined_deg	0.94
r_mcbond_it	0.725
r_mcbond_other	0.725
r_angle_other_deg	0.66
r_chiral_restr	0.052
r_bond_refined_d	0.004
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3169
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	5

Software

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.