1GHH

SOLUTION STRUCTURE OF DINI

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	0.6 mM DinI U-13C,15N, 20 mM phosphate buffer, 100 mM NaCl; pH 6.6; 95% H2O, 5% D2O			6.6	AMBIENT	298.0
2	3D_13C-separated_NOESY	0.6 mM DinI U-13C,15N, 20 mM phosphate buffer, 100 mM NaCl; pH 6.6; 95% H2O, 5% D2O			6.6	AMBIENT	298.0
3	2D NOESY	0.6 mM DinI U-13C,15N, 20 mM phosphate buffer, 100 mM NaCl; pH 6.6; 99% D2O, 1% H2O			6.6	AMBIENT	298.0
4	HNCG	0.6 mM DinI U-13C,15N, 20 mM phosphate buffer, 100 mM NaCl; pH 6.6; 95% H2O, 5% D2O			6.6	AMBIENT	298.0
5	HN(CO)CG	0.6 mM DinI U-13C,15N, 20 mM phosphate buffer, 100 mM NaCl; pH 6.6; 95% H2O, 5% D2O			6.6	AMBIENT	298.0
6	IPAP_15N_HSQC	0.6 mM DinI U-13C,15N, 20 mM phosphate buffer, 100 mM NaCl; pH 6.6; BICELLE OR PHAGE LIQUID CRYSTAL, 95% H2O, 5% D2O			6.6	AMBIENT	298.0
7	HNCO	0.6 mM DinI U-13C,15N, 20 mM phosphate buffer, 100 mM NaCl; pH 6.6; BICELLE OR PHAGE LIQUID CRYSTAL, 95% H2O, 5% D2O			6.6	AMBIENT	298.0
8	(HA)CA(CO)NH	0.6 mM DinI U-13C,15N, 20 mM phosphate buffer, 100 mM NaCl; pH 6.6; BICELLE OR PHAGE LIQUID CRYSTAL, 95% H2O, 5% D2O			6.6	AMBIENT	298.0

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	500
2	Bruker	DMX	600
3	Bruker	DRX	800

NMR Refinement
Method	Details	Software
simulated annealing molecular dynamics in Cartesian space	Structures were calculated in a three stage process. In the first stage, folds were calculated from a fully-extended chain based only on torsion and NOE restraints. In the second stage, the ten best structures of stage 1 were used as starting structures in a simulated annealing calculation that included dipolar restraints measured in bicelles. In the last stage, the ten lowest energy structures of Stage 2 were used as starting structures in a simulated annealing calculation that also included dipolar restraints measured in a phage liquid crystal.	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	30
Conformers Submitted Total Number	20

Additional NMR Experimental Information

Details

This structure was determined using two sets of dipolar coupling restraints. One set was recorded in a bicelle liquid crystal solution; the other set was recorded in a phage liquid crystal solution. See citation 1 for details on solution conditions. A total of 127 N-H, 135 CA-HA, 138 CA-CO, 61 N-CO, and 64 CO-HN dipolar restraints were used in the structure calculation. Additional restraints included 592 intraresidue, 278 short range, 104 medium range, and 140 long range NOE restraints as well as 76 phi, 51 psi, and 21 chi1 dihedral restraints. A conformational database was employed in the simulated annealing calculation. No radius of gyration term was employed in the simulated annealing calculation.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe		Delaglio
2	data analysis	PIPP		Garrett
3	refinement	X-PLOR		Brunger
4	structure solution	X-PLOR		Brunger