3QCU | pdb_00003qcu

Crystal structure of the LT3015 antibody Fab fragment in complex with lysophosphatidic acid (14:0)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3QCT	PDB ENTRY 3QCT

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	294	0.095 M sodium citrate pH 5.6, 19% (v/v) isopropanol, 19% (w/v) PEG 4000, and 5% (v/v) glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2.71	54.56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.526	α = 90
b = 184.351	β = 90
c = 130	γ = 90

Symmetry
Space Group	C 2 2 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		2009-11-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	1.0000	NSLS	X25

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	1.979	46.749	99.9	0.061	12.2	7.4		72518		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.979	2.01	99.9		0.482		7.2	3613

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 3QCT	1.979	46.749	72568	72488	3653	99.89	0.223	0.223	0.2215	0.227	0.2516	0.2536	RANDOM	34.587

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]
-0.46			-0.51		0.98

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.781
r_dihedral_angle_4_deg	22.426
r_dihedral_angle_3_deg	13.692
r_dihedral_angle_1_deg	6.374
r_scangle_it	2.757
r_scbond_it	1.713
r_angle_refined_deg	1.288
r_mcangle_it	1.144
r_mcbond_it	0.619
r_chiral_restr	0.08
r_bond_refined_d	0.01
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6686
Nucleic Acid Atoms
Solvent Atoms	284
Heterogen Atoms	50

Software

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