SERINE
SER, S

CHEMICAL STRUCTURE
CHEMICAL SHIFTS
Standard chemical shifts of random extended chain structures:
 
1Ha 13Ca 15Nb
NH: 8.38 
HA: 4.50
HA: 3.88
CO: 172.6 
CA: 56.6 
CB: 62.3
N: 116.7
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: 4.50
    CA: 58.1
    CO: 174.7
    Thus:

              HELIX           B STRAND          COIL
                 CA      CO       CA      CO           CA      CO
                61.2    176.0     56.8    173.6      58.2    174.4

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

    OBSERVATIONS
     
    RELATED TOPICS