J-couplings, nD-NMR experiments and backbone resonance assignment not done

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8 Terms

1
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what kind of axes do nD NMR spectra have

directly detected and indirectly detected

2
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3
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1D NMR experiment of nucleus X

excite sample with appropriate radio frequency pulse

detect FID with a detector, show how amplitude of signal decays over time

do fourier transform of FID

4
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2D NMR experiment of nucleu X and Y

detect resonance frequency from transfer of magnetism of X to Y, then Y to X, then do a fourier transform to give chemical shift

do not let frequency of Y run out as this is the starting magnetisation for X

repeat with different time lengths for Y

5
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what are through-bond J couplings used for

transfer magnetism between covalently bonded nuclei

6
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what are 2D HX heteronuclear experiments used for

to generate spectral fingerprints of proteins

7
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what are 2D (1H, 15N) HSQC-type spectra used for

characterising

whether a protein is folded or not

binding interactions

molecular dynamics

domain-domain interactions in multidomain proteins (excludes proline, N-terminal amine and side chain amines)

8
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a larger J coupling means

a more efficient transfer