2KDU

Structural basis of the Munc13-1/Ca2+-Calmodulin interaction: A novel 1-26 calmodulin binding motif with a bipartite binding mode

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D CBCA(CO)NH	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13-1, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
2	3D HNCACB	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13-1, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
3	3D HNCO	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13-1, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
4	3D HN(CA)CO	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13-1, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
5	3D 1H-15N NOESY	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13-1, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
6	3D H(CCO)NH	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13-1, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
7	2D 1H-13C HSQC	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13-1, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
8	3D 1H-13C NOESY	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13, 150 mM potassium chloride, 20 mM BIS-TRIS	100% D2O		6.8		308
9	3D HCCH-TOCSY	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13, 150 mM potassium chloride, 20 mM BIS-TRIS	100% D2O		6.8		308
10	2D 1H-13C HSQC	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13, 150 mM potassium chloride, 20 mM BIS-TRIS	100% D2O		6.8		308
11	2D 1H-15N HSQC	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13-1, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
12	2D 1H-15N HSQC	10 mM calcium, 0.5 mM [U-99% 13C; U-99% 15N] Munc13-1, 0.6 mM calmodulin, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
13	3D 1H-15N NOESY	10 mM calcium, 0.5 mM [U-99% 13C; U-99% 15N] Munc13-1, 0.6 mM calmodulin, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
14	3D HNCO	10 mM calcium, 0.5 mM [U-99% 13C; U-99% 15N] Munc13-1, 0.6 mM calmodulin, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
15	3D HN(CA)CO	10 mM calcium, 0.5 mM [U-99% 13C; U-99% 15N] Munc13-1, 0.6 mM calmodulin, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
16	3D HNCACB	10 mM calcium, 0.5 mM [U-99% 13C; U-99% 15N] Munc13-1, 0.6 mM calmodulin, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
17	3D CBCA(CO)NH	10 mM calcium, 0.5 mM [U-99% 13C; U-99% 15N] Munc13-1, 0.6 mM calmodulin, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
18	3D C(CO)NH	10 mM calcium, 0.5 mM [U-99% 13C; U-99% 15N] Munc13-1, 0.6 mM calmodulin, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
19	3D H(CCO)NH	10 mM calcium, 0.5 mM [U-99% 13C; U-99% 15N] Munc13-1, 0.6 mM calmodulin, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
20	3D HCCH-TOCSY	10 mM calcium, 0.5 mM [U-99% 13C; U-99% 15N] Munc13-1, 0.6 mM calmodulin, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
21	3D C(CO)NH	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13-1, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
22	2D (IPAP)1H-15N HSQC	10 mM calcium, 1.5 mM [U-99% 13C; U-99% 15N] calmodulin, 1.8 mM Munc13-1, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308
23	2D (IPAP)1H-15N HSQC	10 mM calcium, 0.5 mM [U-99% 13C; U-99% 15N] Munc13-1, 0.6 mM calmodulin, 150 mM potassium chloride, 20 mM BIS-TRIS	90% H2O/10% D2O		6.8		308

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	600
2	Bruker	AVANCE	600
3	Bruker	AVANCE	700
4	Bruker	AVANCE	900
5	Bruker	DMX	800

NMR Refinement
Method	Details	Software
simulated annealing	Residual Dipolar Couplings refinement protocol	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
2	data analysis	CYANA		Guntert, Mumenthaler and Wuthrich
3	geometry optimization	CYANA		Guntert, Mumenthaler and Wuthrich
4	structure solution	CYANA		Guntert, Mumenthaler and Wuthrich
5	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
6	data analysis	TALOS		Cornilescu, Delaglio and Bax
7	processing	Felix		Accelrys Software Inc.
8	peak picking	Sparky		Goddard
9	structure solution	CANDID		Herrmann, Guntert and Wuthrich