Backbone Correlations  
Reviews can be found in 91PROG43 , 93ACC131 , 94ANG277 , 94PROG371 , 94METH3 , and 99PROG93 .
Experiment 
Conditions
Correlation 
Related experiments 
2D HSQC 
2D  CT-HSQC
2D HMQC
2D TROSY
2D Reverse-INEPT
Natural abundance 
or X-labeling.
 
D2O or H2O.
XH,X      (X=13C or 15N) 
 
Related pulse sequences for other measurements: 
 
  • Relaxation rates 
  • 1H-X NOE effects
  • Proton exchange rates 
  •  
    3D HNCO
     
    13C,15N- labeling
     
    H2O
    CO(i-1),N(i),NH(i) 

     

    For small and medium-size proteins: 
  • 2D H(N)CO 
  • 2D H[NCO]
  • 3D HN(CA)CO 
    13C,15N- labeling
     
    H2O
  • CO(i-1),N(i),NH(i) via 2J(CA-N)
  • CO(i),N(i),NH(i) via 1J(CA-N) 
  • 3D H(N)CACO
  • 3D (HCA)CONH
  • 3D HNCA 
    13C,15N- labeling
     
    H2O
  • CA(i-1),N(i),NH(i) via 2J(CA-N)
  • CA(i),N(i),NH(i) via 1J(CA-N)

     

  • 2D H[NCA]
  • 3D (HA)CANH 
  • 3D (HA)CA(CO)NH 
  • 3D HN(CO)CA 
    13C,15N- labeling
     
    H2O
    CA(i-1),N(i),NH(i)  

     

  • 3D (HACA)CO,NH
  • 2D HN(CO)(CA)
  • 3D HN[COCA] 
  • 3D (HA)CA(CO)NH
  • 3D H(N)COCA
  • 3D (HA)CANH
    (also called as
    (H)CANNH)
    13C,15N- labeling
     
    H2O
  • CA(i),N(i),NH(i) via 1J(CA-N) 
  • CA(i),N(i+1),NH(i+1) via 2J(CA-N)
  •  
  • Also see: 3D HNCA
  • 3D HA(CA)NH
  • 3D HACA(N)H
  • 3D HA[CAN]NH
  • 3D HXYH
  • 3D HA(CA)NH 
    (also H(CA)NH or
    HA(CA)NNH) 
    3D HN(CA)HA 
    (also HN(CA)H)
    13C,15N- labeling
     
    H2O
  • NH(i),N(i),HA(i) via 1J(CA-N) 
  • NH(i),N(i),HA(i-1) via 2J(CA-N) 
  • 3D H(N)CAHA
  • 3D (H)NCAHA
  •  4D HNCAHA
  • 3D (HA)CA(CO)NH 
    13C,15N- labeling
     
    H2O
    CA(i-1),N(i),NH(i) 
  • Also see: 3D HNCA
  • 95JB189 , 97BIO14561
  • 3D HA(CACO)NH
    13C,15N- labeling
     
    H2O
    HA(i-1),N(i),NH(i)
     
  • 3D HN(COCA)HA
  • 3D [HACA](CO)NH
  • 4D HN(CO)CAHA
  • 3D HCA(CO)N 
    13C,15N- labeling
     
    D2O
    HA(i-1),CA(i-1),N(i)

  • 2D HA(CA)N & 3D HACAN
  • 2D HA(CACO)N 
  • 3D (CO)N(CO)CAH 
  •  4D HCACON
  • 3D HCACO
    13C- labeling
     
    D2O
    HA(i),CA(i),CO(i)

     

  • 3D HCACO-TOCSY
  • 3D COCAH
  •  
    3D (H)N(COCA)NH 
    13C,15N- labeling
     
    H2O
    N(i),N(i-1),NH(i-1) 
     
  • 3D [HN](COCA)NH 
  • 4D HN(COCA)NH 
  • 3D (H)N(CA)NNH 
    13C,15N- labeling
     
    H2O
  • N(i),N(i-1),NH(i-1) via 2J(CA-N) + 1J(CA-N) 
  • N(i),N(i),NH(i) via 1J(CA-N) + 1J(CA-N) 
  • N(i),N(i+1),NH(i+1) via 1J(CA-N) 2J(CA-N)
  •  
     
  • 3D H(NCA)NNH 
  • 3D HN(CA)N
  • 4D HN(CA)NH
  • 3D (H)NNH-TOCSY
    13C,15N- labeling
     
    H2O
  • N(i-1),N(i),NH(i)
  • N(i),N(i),NH(i)
  • N(i+1),N(i),NH(i)
  •  
  • 3D (H)CCH-TOCSY