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Table 2 Energy potentials (kcal/mole) computed from the propensities of amino acid residues at different positions in amyloid and non-amyloid hexa-peptides

From: Distinct position-specific sequence features of hexa-peptides that form amyloid-fibrils: application to discriminate between amyloid fibril and amorphous β-aggregate forming peptide sequences

Amyloid

   

Position

  
 

1

2

3

4

5

6

Amyloid

      

Ala

0.510

0.814

1.469

1.056

0.000

0.814

Asp

0.848

0.848

1.259

0.000

0.000

0.606

Cys

0.000

-0.434

-0.021

-0.021

0.000

-0.263

Glu

0.639

0.335

0.135

0.468

1.294

-0.974

Phe

-0.060

-0.231

-0.833

-0.060

-0.806

-0.300

Gly

-0.007

0.596

1.422

0.000

0.000

1.009

His

-0.386

0.027

0.000

0.681

0.000

0.000

Ile

0.408

-0.137

1.235

-1.225

-1.460

0.580

Lys

0.080

0.000

0.000

1.239

0.000

0.826

Leu

0.310

-0.103

0.231

-0.252

1.056

0.310

Met

-0.291

0.255

0.668

0.000

0.000

-0.491

Asn

-0.142

0.685

0.442

-0.688

0.000

0.029

Pro

0.000

0.000

0.000

0.000

0.000

0.000

Gln

0.340

-0.314

-0.165

0.000

0.996

-0.534

Arg

0.734

0.000

0.000

0.000

0.000

0.000

Ser

-1.036

0.602

0.098

1.259

1.259

-0.171

Thr

0.829

-1.089

0.000

0.175

1.244

0.083

Val

-0.014

-0.071

-1.191

1.355

0.000

-0.071

Trp

-0.413

0.000

-0.546

-0.747

0.413

0.413

Tyr

-0.204

-0.353

0.956

-0.283

-0.798

-0.112

Non-amyloid

      

Ala

0.423

-0.070

0.622

0.927

0.622

0.757

Asp

0.214

0.718

0.306

0.548

0.414

0.306

Cys

0.000

0.093

-0.320

0.500

0.000

0.000

Glu

-0.073

-0.206

-0.244

-0.021

0.340

-0.874

Phe

-0.250

0.054

-0.772

-0.492

-0.864

-0.359

Gly

0.710

0.375

0.879

0.467

1.528

0.225

His

-0.165

0.139

0.382

0.139

0.382

0.382

Ile

0.280

0.108

0.280

-0.866

-1.122

0.038

Lys

-0.370

0.285

0.192

0.393

0.285

0.393

Leu

0.516

-0.031

0.273

-0.423

0.423

0.011

Met

0.126

-0.178

0.369

0.778

0.778

-0.378

Asn

-0.028

1.207

-0.270

-0.099

0.251

0.385

Pro

0.397

0.566

0.397

0.262

0.262

0.262

Gln

0.451

0.451

0.040

0.282

0.282

-0.052

Arg

-0.050

0.604

0.604

0.300

0.848

0.192

Ser

-0.827

0.132

0.132

0.303

0.716

0.061

Thr

0.117

-0.899

0.530

0.196

0.942

-0.125

Val

0.402

0.310

-0.681

0.645

0.310

0.645

Trp

-0.130

0.114

-0.634

0.521

0.114

-0.130

Tyr

-0.240

-0.360

0.413

-0.170

-0.503

0.243