1KL8 | pdb_00001kl8

NMR STRUCTURAL ANALYSIS OF THE COMPLEX FORMED BETWEEN ALPHA-BUNGAROTOXIN AND THE PRINCIPAL ALPHA-NEUROTOXIN BINDING SEQUENCE ON THE ALPHA7 SUBUNIT OF A NEURONAL NICOTINIC ACETYLCHOLINE RECEPTOR

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	1.6 MM ALPHA-BUNGAROTOXIN 15N]-ALPHA 7 19MER COMPLEX MM SODIUM PHOSPHATE, PH 5. MICROMOLAR SODIUM AZIDE 50 MICROMOLAR TMSP	95% H2O/5% D2O		5.50	AMBIENT	308.00
2	2D TOCSY	1.6 MM ALPHA-BUNGAROTOXIN 15N]-ALPHA 7 19MER COMPLEX MM SODIUM PHOSPHATE, PH 5. MICROMOLAR SODIUM AZIDE 50 MICROMOLAR TMSP	95% H2O/5% D2O		5.50	AMBIENT	308.00
3	3D_15 SEPARATED_NOESY	1.6 MM ALPHA-BUNGAROTOXIN 15N]-ALPHA 7 19MER COMPLEX MM SODIUM PHOSPHATE, PH 5. MICROMOLAR SODIUM AZIDE 50 MICROMOLAR TMSP	95% H2O/5% D2O		5.50	AMBIENT	308.00
4	3D_15N- SEPARATED_TOCSY	1.6 MM ALPHA-BUNGAROTOXIN 15N]-ALPHA 7 19MER COMPLEX MM SODIUM PHOSPHATE, PH 5. MICROMOLAR SODIUM AZIDE 50 MICROMOLAR TMSP	95% H2O/5% D2O		5.50	AMBIENT	308.00
5	2D 1H-15N HSQC	1.6 MM ALPHA-BUNGAROTOXIN 15N]-ALPHA 7 19MER COMPLEX MM SODIUM PHOSPHATE, PH 5. MICROMOLAR SODIUM AZIDE 50 MICROMOLAR TMSP	95% H2O/5% D2O		5.50	AMBIENT	308.00
6	HNHA	1.6 MM ALPHA-BUNGAROTOXIN 15N]-ALPHA 7 19MER COMPLEX MM SODIUM PHOSPHATE, PH 5. MICROMOLAR SODIUM AZIDE 50 MICROMOLAR TMSP	95% H2O/5% D2O		5.50	AMBIENT	308.00

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	AVANCE	400

NMR Refinement
Method	Details	Software
DISTANCE GEOMETRY DYNAMIC SIMULATED ANNEALING	RMS DEVIATIONS FROM IDEAL VALUES BOND LENGTH(A) 0.0039, ANGLES(DEG) 0.61, IMPROPERS(DEG) 0.5	CNS

NMR Ensemble Information
Conformer Selection Criteria
Conformers Calculated Total Number
Conformers Submitted Total Number	1
Representative Model	1 (minimized average structure)

Additional NMR Experimental Information
Details	THE WELL-DEFINED REGIONS IN THE COMPLEX, EXHIBITING EXTENSIVE LONG RANGE NOES, ARE: BGTX: 1-16, 22-28, 39-48, AND 54-68 ALPHA 7 19MER: 185-194.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	CNS	1.0	BRUNGER, A.T., ET AL.
2	structure solution	XwinNMR	2.1
3	structure solution	NMRPipe	1.8
4	structure solution	Sparky	3.87