Number of degrees of freedom for the angles φ, ψ and χ for each amino acid

aa A E Q D N L G K S V R T P I M F Y C W H
n 2 5 5 4 4 4 3* 6 4 3 6 4 1 4 5 4 5 4 4 4


aa is the name of the residue shown in one letter code,
n  is the number of degrees of freedom.