2D pulse sequences for NMR of protein/peptide complexes?

0 1 3k
answers votes views
Hello, I am looking for some 15N/13C-filtered 2D NOESY and 2D TOCSY pulse sequences to run on a Varian 600. Does anyone ...
Posted: acalab 21 / Updated: Evgeny Fadeev 5771 Jul 26 '10 at 09:25

Looking for sample spectra....

2 1 5k
answers votes views
Hi guys : Is there a public database of sample Bruker/Varian NMR spectra ? I want to look at a sample 4D SER file ......
Posted: j 131 / Updated: Evgeny Fadeev 5771 Jul 07 '10 at 14:41

How does pipe estimates Haight and DHeight?

4 1 4k
answers votes views
I`m new on Pipe. I was using the values from pipe to estimate R1 and R2. Because lots of signal in the HSQC were crowded...
Updated: Marcos 21 Jul 02 '10 at 10:55

Is there a way to reduce on-carrier solvent artifact in States-TPPI?

1 0 8k
answers votes views
Here is a TOCSY recorded with States-TPPI method on a sample in 10/90 D2O/H2O. States-TPPI is expected to move the "ho...
Posted: Evgeny Fadeev 5771 / Updated: sekhar Talluri 621 Jul 10 '10 at 19:00

Why this gradient shim map is jumpy at edges?

1 0 6k
answers votes views
Hello, I've been trying to create a gradient shim map (shown in figure below) on a standard 5 mM tube on D2O (10% D2O/H2...
Posted: Evgeny Fadeev 5771 / Updated: Kirk Marat 711 Jul 03 '10 at 08:22

What is the minimum information required to calculate a structure with cyana?

1 1 8k
answers votes views
Hi guys : I have several spectra, and wanted to test out what data I do , and do not need, in order to effectively get a...
Posted: j 131 / Updated: Bharathwaj 112 Jun 28 '10 at 19:43

Chemical shift and spin rate

2 1 4k
answers votes views
For solid state NMR: What can cause the line position shift depending on the spin rate? ...
Posted: KateSTR 11 / Updated: Evgeny Fadeev 5771 Jun 21 '10 at 19:12

What does tcu error in bruker mean: ignored AQNEXT, busy FIFO is stopped?

1 0 9k
answers votes views
Has any one seen this type of error before? tcu error: Error in 'hsqcrexetf3gpsi3d.t22.d': line 92 (pc=50, ld=2300): - ...
Posted: Jeetender Chugh 31 / Updated: Ilango 171 Jul 09 '10 at 11:45

Why RF irradiation will damage amplifier?

3 1 16680
answers votes views
Here our 1H amplifier of NMR spectrometer is damaged twice for long time or high power RF irradiation. Why the duty cyc...
Posted: Frey 61 / Updated: lbeezley 1 Mar 15 '11 at 08:37

What is the origin of positive and negative coupling constants in NMR?

1 2 22945
answers votes views
When positive and negative coupling constants occur in NMR? and why? What are the spin states of the nuclei and the bond...
Posted: Ligia 21 / Updated: sekhar Talluri 621 Jun 13 '10 at 05:47
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