SOLUTION NMR Experimental Data


Experimental Details
Sample Conditions
Sample ContentsCDCL3/CD3OH=1/1 WITH 0.1 M LICLO4
Solventn/a
Ionic Strength0.1 M LICLO4
pH4.0
Pressure1
Temperature (K)303
Experiment(s):DQF-COSY, TOCSY, NOESY
Spectrometer Information
Manufacturer Model Field Strength
Varian UNITY 600.0
NMR Refinement
Method distance geometry
Details REFINEMENT DETAILS CAN BE FOUND IN THE JRNL CITATION ABOVE. THE NMR STUDY HAS BEEN CONDUCTED USING THE SYNTHETIC PEPTIDE WITH METHIONINE 243 REPLACED BY NORLEUCINE. SUCH AN ISOSTERIC REPLACEMENT USUALLY DOES NOT AFFECT THE PEPTIDE CONFORMATION, WHILE SYMPLIFYING THE SYNTHESIS. TO AVOID DIFFICULTIES WHICH MAY ARISE FROM THE PRESENCE OF A NONSTANDARD AMINO ACID RESIDUE AS WELL AS FOR THE PURPOSE OF AGREEMENT BETWEEN THE NATIVE M2 FRAGMENT AND THE CONFORMERS TO BE DEPOSITED, THE NORLEUCINE RESIDUE WAS REPLACED BY METHIONINE.
NMR Ensemble Information
Conformer Selection Criteria LEAST RESTRAINTS VIOLATION
Conformers Calculated Total Number 300
Conformers Submitted Total Number 20
Representative Model Choice Rationale
1 n/a
Additional NMR Experimental Information
1 THE STRUCTURE WAS DETERMINED USING 2D-1H-NMR SPECTROSCOPY IN THE MEDIUM WHICH SHOULD BE ADEQUATE FOR THE M2 SEGMENT WITH ITS NON-LIPID SURROUNDING IN THE INTACT NICOTINIC ACTYLCHOLINE RECEPTOR. THE PH GIVEN IN THE EXPERIMENTAL DETAILS IS AN APPROXIMATION ONLY FOR THE MIXTURE OF ORGANIC SOLVENTS USED.
Computation: NMR Software
# Classification Software Name Author
1 refinement version: 4.0 FANTOM R.FRACZKIEWICZ,C.MUMENTHALER,B. VON FREYBERG, T.SCHAUMANN,W.BRAUN
2 structure solution version: VNMR VARIAN VNMR --
3 structure solution XEASY --
4 structure solution DYANA --
5 structure solution MARDIGRAS --