How do you find incorrectly assigned NOE restraints?

3 1 7k
answers votes views
So you've analyzed your NOE data sets and have 1000+ assigned restraints, with probably inevitable errors. Going through...
Updated: Evgeny Fadeev 5771 Mar 02 '10 at 09:09

How to display NMR structure of molecule with non-standard residues?

1 0 11458
answers votes views
... solving a structure of a cyclic peptide with Ornithine residue, where Orn side-chain participates in an amide bond. ...
Updated: Evgeny Fadeev 5771 Feb 02 '10 at 08:59

How do modern pulse sequences battle radiation damping?

1 0 5k
answers votes views
What techniques are used in the modern pulse sequences to reduce radiation damping issues? Could you give some examples...
Posted: Evgeny Fadeev 5771 / Updated: sekhar Talluri 621 Feb 11 '10 at 10:00

What is radiation damping?

1 1 24466
answers votes views
What makes very strong signals broader - just due to the interaction of the sample with the detection coil - what is the...
Posted: Evgeny Fadeev 5771 / Updated: Kirk Marat 711 Feb 08 '10 at 05:47

Absorption of RF energy quantum and change of the nucleus spin state

1 0 8k
answers votes views
Is a quantum of energy such as that in transverse RF field produced by NMR probe absorbed instantaneously by a single nu...
Updated: Evgeny Fadeev 5771 Jan 26 '10 at 13:42

NMR experiments to assign aromatic sidechains?

3 1 9k
answers votes views
Hello, may I ask this - NMR experiments/pulse sequences are available to assign aromatic sidechains - Phe, Tyr, Trp? We'...
Posted: anita 31 / Updated: roseyp 46 Feb 22 '11 at 09:38

Example of XPLOR NMR structure with unnatural custom residues

0 2 3k
answers votes views
Hi there! Could anyone share an example of NIH-XPLOR files for annealing of NMR structure with non-natural residues. May...
Updated: anita 31 Jan 19 '10 at 11:40

Please suggest experiments that push the power limits of NMR probes

5 1 9k
answers votes views
I'm trying to come up with reasonable tests of probe performance for all channels by simulating conditions at which arci...
Posted: Evgeny Fadeev 5771 / Updated: SankarampadiAravamudhan 91 Oct 22 '10 at 01:56

Using probe that started losing B1 strength or has longer 90 degree pulse

1 0 5k
answers votes views
I've found that one of our probes lost ~1.5-2 dB of power on 13C, but nutation curve looks OK. There are no random spike...
Posted: Evgeny Fadeev 5771 / Updated: Joseph DiVerdi 146 Apr 19 '10 at 18:07

What may cause lock level depend on pfgon setting in vnmr?

2 1 5k
answers votes views
Hello, I've been working through the probe performance tests and noticed that when I change pfgon='yyy' to pfgon='nyn' l...
Posted: Evgeny Fadeev 5771 / Updated: Jerry Hirschinger 199 Sep 28 '10 at 12:12
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