3) The chemical structure for an asparagine residue in a peptide is given below. NH₂ ZI 'N' H NH 8.75 ppm, NH₂ 7.59, 6.91 ppm, СßH 2.83, 2.75 ppm, CaH 4.75 ppm (i) (ii) (iii) (iv) Draw out a 1-D ¹H NMR spectrum for this residue include the multiplicity of each signal. For simplicity in your drawing take that the coupling constant for the NH-CH >> CH-CH. Show the approx. relative height of the signals and clearly assign each peak in the spectrum. Draw out a 1H-1H COSY spectrum for this residue. Clearly assign each diagonal peak and show all the cross peaks in the spectrum. How many spin systems are in the residue? Draw in the extra peaks that would occur in the ¹H-¹H TOCSY spectrum for this residue
3) The chemical structure for an asparagine residue in a peptide is given below. NH₂ ZI 'N' H NH 8.75 ppm, NH₂ 7.59, 6.91 ppm, СßH 2.83, 2.75 ppm, CaH 4.75 ppm (i) (ii) (iii) (iv) Draw out a 1-D ¹H NMR spectrum for this residue include the multiplicity of each signal. For simplicity in your drawing take that the coupling constant for the NH-CH >> CH-CH. Show the approx. relative height of the signals and clearly assign each peak in the spectrum. Draw out a 1H-1H COSY spectrum for this residue. Clearly assign each diagonal peak and show all the cross peaks in the spectrum. How many spin systems are in the residue? Draw in the extra peaks that would occur in the ¹H-¹H TOCSY spectrum for this residue
Chapter26: Biomolecules: Amino Acids, Peptides, And Proteins
Section26.SE: Something Extra
Problem 50AP: The -helical parts of myoglobin and other proteins stop whenever a proline residue is encountered in...
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Transcribed Image Text:3) The chemical structure for an asparagine residue in a peptide is given below.
NH₂
ZI
'N'
H
NH 8.75 ppm, NH₂ 7.59, 6.91 ppm, СßH 2.83, 2.75 ppm, CaH 4.75 ppm
(i)
(ii)
(iii)
(iv)
Draw out a 1-D ¹H NMR spectrum for this residue include the multiplicity of
each signal. For simplicity in your drawing take that the coupling constant
for the NH-CH >> CH-CH. Show the approx. relative height of the signals
and clearly assign each peak in the spectrum.
Draw out a 1H-1H COSY spectrum for this residue. Clearly assign each
diagonal peak and show all the cross peaks in the spectrum.
How many spin systems are in the residue?
Draw in the extra peaks that would occur in the ¹H-¹H TOCSY spectrum for
this residue
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