4X6R

An Isoform-specific Myristylation Switch Targets RIIb PKA Holoenzymes to Membranes

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	BATCH MODE		298	Crystallization of RIb(91-379,R333K): myrC(K7C) heterodimer :RC heterodimer that was concentrated to 14 mg/mL and screened against different ammonium sulfate concentrations ranging from 0.8-2.5 M in 0.1 M sodium citrate buffer and also varying the pH from 5.0-6.0 using the hanging drop vapor diffusion method. The crystal used for structure determination was obtained from a 4 uL drop containing 1:1 protein to well solution with the well solution containing 1.6 M ammonium sulfate and 0.1 M sodium citrate at pH 5.5

Crystal Properties
Matthews coefficient	Solvent content
4.3	71.41

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 125.76	α = 90
b = 125.76	β = 90
c = 140.881	γ = 120

Symmetry
Space Group	P 32 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	200	CCD	ADSC QUANTUM 1		2013-07-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.1	1	ALS	8.2.1

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	2.4	63	99.9	3	4		48209

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		FREE R-VALUE	2.4	62.88	1.6	2575	99.9	0.186	0.184	0.234

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]
1.8891			1.8891		-3.7782

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	17.822
f_angle_d	1.857
f_chiral_restr	0.133
f_bond_d	0.022
f_plane_restr	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5145
Nucleic Acid Atoms
Solvent Atoms	269
Heterogen Atoms	101

Software

Software
Software Name	Purpose
PHENIX	refinement
MOSFLM	data reduction
HKL-2000	data scaling
PHASER	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.