2Z92

Crystal structure of the Fab fragment of anti-ciguatoxin antibody 10C9 in complex with CTX3C_ABCDE

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1HQ4	PDB ENTRY 1HQ4, 1Z3G, 3F58, 1YEC
experimental model	PDB	1Z3G	PDB ENTRY 1HQ4, 1Z3G, 3F58, 1YEC
experimental model	PDB	3F58	PDB ENTRY 1HQ4, 1Z3G, 3F58, 1YEC
experimental model	PDB	1YEC	PDB ENTRY 1HQ4, 1Z3G, 3F58, 1YEC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	293	0.1M tri-sodium Citrate dihydrate, 20% iso-Propanol, 20% PEG4000, pH5.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.55	51.73

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62	α = 90
b = 67.65	β = 90
c = 114.357	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	CCD	ADSC QUANTUM 315		2006-12-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE BL-5A	1.0000	Photon Factory	BL-5A

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	2.3	50	99.7	0.103		6.6		21987			20.6

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)
	2.3	2.38	97.2		0.337		4.7	2102

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	PDB ENTRY 1HQ4, 1Z3G, 3F58, 1YEC	2.3	9.98	20735	2047	95.4	0.228	0.228	0.269	RANDOM	19

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]
3.69			-1.59		-2.1

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	27.3
c_scangle_it	2.62
c_scbond_it	1.86
c_angle_deg	1.8
c_mcangle_it	1.78
c_mcbond_it	1.12
c_improper_angle_d	1.11
c_bond_d	0.009
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3197
Nucleic Acid Atoms
Solvent Atoms	146
Heterogen Atoms	43

Software

Software
Software Name	Purpose
CNS	refinement
ugiui	data collection
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	phasing