ASPARAGINE
ASN, N
CHEMICAL STRUCTURE
CHEMICAL SHIFTS
Standard chemical shifts of random extended chain structures:
 
1Ha 13Ca 15Nb
NH: 8.75 
HA: 4.75
HB: 2.83, 2.75
NH2(G): 7.59, 6.91		 CO: 173.1 
CA: 51.5
CB: 37.7
CG: 175.6 		 N: 119.5
a) from 86BOOK1: b) from 91JMB311-222
More info in:
  • 1H chemical shifts of amino acids
  • 13C chemical shifts of amino acids
  • Average 1HA, 1HN and 15N chemical shifts in random coil
    • IDENTIFICATION
    Easy spin system identification from:
    SECONDARY STRUCTURE
    Standard average chemical shift values used in determination of secondary structure by means of the CSI method:
    HA: 4.75
    CA: 52.7
    CO: 175.6
    Thus:

              HELIX           B STRAND          COIL
                 CA      CO       CA      CO           CA      CO
                55.8    177.0     51.9    174.5      53.2    175.6

    More info in: 13CA and 13CO chemical shifts according to secondary structure.

    OBSERVATIONS
     
    RELATED TOPICS