6O22

Structure of Asf1-H3:H4-Rtt109-Vps75 histone chaperone-lysine acetyltransferase complex with the histone substrate.

SOLUTION NMR - SOLUTION SCATTERING

Solution Scattering Data Acquistion	1	2	3	4	5	6
Scattering Type	neutron	neutron	neutron	neutron	neutron	neutron
Radiation/Neutron Source	ILL	FRM2	FRM2	FRM2	FRM2	FRM2
Synchrotron	N	N	N	N	N	N
Beamline Type
Detector Type	He multidetector 128 linear sensitive Reuter-Stokes detector	6Li-Scintillator 1 mm thickness + photomultiplier detector	6Li-Scintillator 1 mm thickness + photomultiplier detector	6Li-Scintillator 1 mm thickness + photomultiplier detector	6Li-Scintillator 1 mm thickness + photomultiplier detector	6Li-Scintillator 1 mm thickness + photomultiplier detector
Detector Manufacturer Details
Temperature (K)	298	298	298	298	298	298
pH	6.5	6.5	6.5	6.5	6.5	6.5
Numer of Time Frames Used
Protein Concentration Range (mg/mL)	4.90	2.35	3.85	3.8	4.7	5.2
Sample Buffer	50 MM CITRATE, 150 MM NACL, 5MM BME IN 99.9% D2O	50 MM CITRATE, 150 MM NACL, 5MM BME IN 99.9% D2O	50 MM CITRATE, 150 MM NACL, 5MM BME IN 99.9% D2O	50 MM CITRATE, 150 MM NACL, 5MM BME IN 99.9% D2O	50 MM CITRATE, 150 MM NACL, 5MM BME IN 99.9% D2O	50 MM CITRATE, 150 MM NACL, 5MM BME IN 99.9% D2O
Data Reduction Software	ILL IN-HOUSE PACKAGE (GRASP)	QTIKWS	QTIKWS	QTIKWS	QTIKWS	QTIKWS
Guiner Mean Radius Of Gyration (nm)	2.84	3.53		3.28	3.5	3.06
Sigma Mean Radius Of Gyration	0.018	0.038		0.046	0.046	0.076
R(XS-1) Mean Cross Sectional Radii (nm)
R(XS-1) Sigma Mean Cross Sectional Radii
R(XS-2) Mean Cross Sectional Radii (nm)
R(XS-2) Sigma Mean Cross Sectional Radii
P(R) Protein Length (nm)	9.5	11.5		10.5	11.0	10.5

Solution Scattering Data Analysis and Model Fitting
Method	Software	Software Authors	Starting Model	Conformers, Number Calculated	Conformers, Number Submitted	Conformers, Selection Criteria	Best Representative Conformer	Other Details
X-RAY STRUCTURES OF THE SUBUNITS WERE DOCKED WITH HADDOCK-BASED M3 DOCKING PROTOCOL. DOCKING WAS GUIDED BY PRE DISTANCE RESTRAINTS, STRUCTURES WERE SELECTED BY FITNESS TO THE SANS DATA.	M3	KARACA, CARLOMAGNO, RODRIGUES, BONVIN	PDB ID 3Q66, PDB ID 2HUE	150	1	BEST FITNESS TO THE SANS DATA, CLOSEST TO THE CLUSTER CENTER.		THE STRUCTURE WAS DETERMINED USING A HADDOCK-BASED M3 DOCKING PROTOCOL. THE INITIAL COORDINATES OF THE ISOLATED DOMAINS WERE BASED ON PDB ID 3Q66, PDB ...	THE STRUCTURE WAS DETERMINED USING A HADDOCK-BASED M3 DOCKING PROTOCOL. THE INITIAL COORDINATES OF THE ISOLATED DOMAINS WERE BASED ON PDB ID 3Q66, PDB ID 2HUE. PRE DISTANCE RESTRAINTS WERE USED FOR STRUCTURE CALCULATION WITH HADDOCK-M3. 5000 STRUCTURES WERE CALCULATED DURING THE IT0 STAGE, 150 STRUCTURES WERE CALCULATED DURING THE IT1 STAGE. SANS DATA WERE USED FOR THE STRUCTURE SELECTION.

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-13C HSQC	70 uM ILV methyl labelled, perdeuterated Vps75 (dimer), 70 uM Rtt109, 70 uM Asf1, 70 uM H3, 70 uM H4	100% D2O	150 mM	6.5	1 atm	298	Bruker AVANCE III 850
2	2D 1H-13C HSQC	70 uM ILV methyl labelled, perdeuterated Vps75 (dimer), 70 uM Rtt109, 70 uM Asf1, 70 uM H3(110A,63C) mutant with a cysteine coupled to a paramagnetic tag, 70 uM H4	100% D2O	150 mM	6.5	1 atm	298	Bruker AVANCE III 850
3	2D 1H-13C HSQC	90 uM ILV methyl labelled, perdeuterated Vps75 (dimer), 90 uM Rtt109, 90 uM Asf1, 90 uM H3(110A,76C) mutant with a cysteine coupled to a paramagnetic tag, 90 uM H4	100% D2O	150 mM	6.5	1 atm	298	Bruker AVANCE III 850
4	2D 1H-13C HSQC	30 uM ILV methyl labelled, perdeuterated Vps75 (dimer), 30 uM Rtt109, 30 uM Asf1, 30 uM H3, 30 uM H4(30C) mutant with a cysteine coupled to a paramagnetic tag	100% D2O	150 mM	6.5	1 atm	298	Bruker AVANCE III 850
5	2D 1H-13C HSQC	70 uM ILV methyl labelled, perdeuterated Vps75 (dimer), 70 uM Rtt109, 70 uM Asf1, 70 uM H3, 70 uM H4(82C) mutant with a cysteine coupled to a paramagnetic tag	100% D2O	150 mM	6.5	1 atm	298	Bruker AVANCE III 850
6	2D 1H-13C HSQC	80 uM ILV methyl labelled, perdeuterated Vps75 (dimer), 80 uM Rtt109, 80 uM Asf1, 80 uM H3, 80 uM H4(45C) mutant with a cysteine coupled to a paramagnetic tag	100% D2O	150 mM	6.5	1 atm	298	Bruker AVANCE III 850
7	2D 1H-13C HSQC	30 uM ILV methyl labelled, perdeuterated Vps75 (dimer), 30 uM Rtt109, 30 uM Asf1, 30 uM H3, 30 uM H4(93C) mutant with a cysteine coupled to a paramagnetic tag	100% D2O	150 mM	6.5	1 atm	298	Bruker AVANCE III 850

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III	850

NMR Refinement
Method	Details	Software
simulated annealing		Amber

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	150
Conformers Submitted Total Number	1
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	data analysis	CcpNMR		CCPN
2	structure calculation	HADDOCK		Bonvin
3	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
4	processing	TopSpin		Bruker Biospin
5	refinement	Amber		Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, and Kollman
6	data analysis	FuDA		D. Flemming Hansen

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.