3R4M

Optimization of Potent, Selective, and Orally Bioavailable Pyrrolodinopyrimidine-containing Inhibitors of Heat Shock Protein 90. Identification of Development Candidate 2-amino-4-{4-chloro-2-[2-(4-fluoro-1H-pyrazol-1-yl)ethoxy]-6-methylphenyl}-N-(2,2-difluoropropyl)-5,7-dihydro-6H-pyrrolo[3,4-d]pyrimidine-6-carboxamide

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.2	286	30 % PEG MME 550, 0.1 M CaCl2, 0.1 M cacodylate, pH 5.2, VAPOR DIFFUSION, HANGING DROP, temperature 286K

Crystal Properties
Matthews coefficient	Solvent content
2.24	45.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.196	α = 90
b = 44.126	β = 115.65
c = 53.263	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	98	IMAGE PLATE	MAR scanner 345 mm plate	Mirrors	2004-04-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	ENRAF-NONIUS FR591	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.7	24.4	83.7	0.047	0.047	27.2	3.6	20999	20874			18.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.7	1.76	93.4		0.083	0.083	13.4	3.2	2318

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1.7	24.4	20995	20870	1005	82.9	0.196	0.196	0.194	0.223	RANDOM	17.4

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]
-0.56		-1.16	-0.98		1.54

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	20.1
c_scangle_it	3.21
c_scbond_it	2.13
c_mcangle_it	1.88
c_mcbond_it	1.23
c_angle_deg	0.8
c_improper_angle_d	0.61
c_bond_d	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1695
Nucleic Acid Atoms
Solvent Atoms	186
Heterogen Atoms	16

Software

Software
Software Name	Purpose
MAR345dtb	data collection
CNX	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNX	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.