Table 1 Derived helical propensity for each amino acid in descending order.

From: Helical structure motifs made searchable for functional peptide design

AA

HPa.a.

NAa.a.

HPNA (HPa.a./NAa.a.)

Helical propensity, log (HPNA)

Alanine (A)

0.109

0.083

1.320

0.277

Tryptophan (W)

0.014

0.011

1.284

0.250

Glutamate (E)

0.084

0.067

1.246

0.220

Leucine (L)

0.115

0.097

1.192

0.175

Glutamine (Q)

0.045

0.039

1.145

0.135

Tyrosine (Y)

0.033

0.029

1.130

0.122

Lysine (K)

0.064

0.058

1.100

0.095

Methionine (M)

0.026

0.024

1.079

0.076

Arginine (R)

0.059

0.055

1.067

0.065

Phenylalanine (F)

0.038

0.039

0.984

−0.016

Isoleucine (I)

0.058

0.059

0.978

−0.022

Histidine (H)

0.022

0.023

0.969

−0.031

Aspartate (D)

0.052

0.055

0.952

−0.049

Asparagine (N)

0.038

0.041

0.936

−0.066

Threonine (T)

0.049

0.053

0.918

−0.086

Valine (V)

0.062

0.069

0.902

−0.103

Cysteine (C)

0.012

0.014

0.876

−0.132

Serine (S)

0.053

0.066

0.804

−0.218

Glycine (G)

0.046

0.071

0.650

−0.431

Proline (P)

0.021

0.047

0.445

−0.810

  1. AA amino acid, HPa.a. helical propensity for each amino acid, NAa.a. natural abundance of each amino acid, HPNA HPa.a. normalized by NAa.a..