7FXS

Crystal Structure of human FABP4 binding site mutated to that of FABP5 in complex with 5-phenoxy-6-(2,2,2-trifluoroethoxy)-2-(trifluoromethyl)pyridine-3-carboxylic acid, i.e. SMILES c1(c(nc(c(c1)C(=O)O)C(F)(F)F)OCC(F)(F)F)Oc1ccccc1 with IC50=2.33933 microM

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
other		inhouse model

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	293	protein in 25mM Tris/HCl pH 7.5 100mM NaCl, see also PMID 27658368

Crystal Properties
Matthews coefficient	Solvent content
2.03	39.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 32.141	α = 90
b = 52.612	β = 90
c = 72.212	γ = 90

Symmetry
Space Group	P 2 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	MARMOSAIC 225 mm CCD			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA	1	SLS	X10SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	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	1.25	42.52	100	0.152	0.158	0.998	8.97	12.059		34854			18.86

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.25	1.28	100		2.397	2.518	0.263	0.78	10.489

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	inhouse model	1.25	42.52	31349	1662	95.22	0.1497	0.1477	0.188	RANDOM	14.358

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]
0.04			0.09		-0.13

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.336
r_sphericity_free	25.874
r_dihedral_angle_4_deg	14.985
r_dihedral_angle_3_deg	12.36
r_sphericity_bonded	11.872
r_dihedral_angle_1_deg	6.633
r_rigid_bond_restr	5.243
r_angle_refined_deg	2.199
r_angle_other_deg	0.928
r_chiral_restr	0.142

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.336
r_sphericity_free	25.874
r_dihedral_angle_4_deg	14.985
r_dihedral_angle_3_deg	12.36
r_sphericity_bonded	11.872
r_dihedral_angle_1_deg	6.633
r_rigid_bond_restr	5.243
r_angle_refined_deg	2.199
r_angle_other_deg	0.928
r_chiral_restr	0.142
r_bond_refined_d	0.021
r_gen_planes_refined	0.011
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1012
Nucleic Acid Atoms
Solvent Atoms	179
Heterogen Atoms	46

Software

Software
Software Name	Purpose
XSCALE	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	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 R01GM157729.