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. 2009 Dec 21;19(2):327–348. doi: 10.1002/pro.314

Table VI.

Comparison of Relative Accessible Surface Area in Amyloidogenic and Non-amyloidogenic Helical Residues

No. of helical residuesa
Average relative ASA per helical residueb %
Protein PDB ID Amyloidogenic sequence(s) containing residues in helical conformation Amyloidogenic Nonamyloidogenic Amyloidogenic Nonamyloidogenic
α-Synuclein 1XQ8 51–56 28 53 62.5 65.0
66–74
77–82
86–92
β-Lactoglobulin 1BEB dimer 11–20c 4 28 53.0 39.8
AcP 1APS 16–31c 7 10 13.8 7.9
Amphoterin 1CKT 12–27 14 34 20.4 34.4
ApoC-II 1SOH 60–70 6 23 56.3 56.1
Insulin 1XDA(1) 13–18 13 14 44.4 41.4
11–17
Kerato-epithelin 1X3B 515–525 (21–32 in 1X3B) 8 33 33.8 35.1
Lysozyme 1REX 55–61 1 42 0 24.0
Myoglobin 1WLA 101–118 17 94 24.3 31.1
Prolactin 1RW5 7–34 21 97 27.2 25.0
43–57
hPrP 1QLX 138–144c 16 38 34.4 37.7
170–175c
178–193c
repA pPS10 1HKQ dimer 26–34 10 80 12.2 29.2
M. jannaschii tRNA endonuclease 1A79 tetramer 47–53 28 190 2.86 25.9
Enterotoxin, S. aureus 2NTT dimer 50–54 8 58 38.4 16.4
Cytochrome b Rhodobacter sphaeroides 2QJP(1) (Chains A&D) 337–341 10 526 25.0 21.2
Thymidine kinase, cystolic, human 1W4R (Chains A,B,C&D) 133–137 8 167 2.79 24.6
Mean ± SD 28 ± 19 32 ± 14
t-test, t −0.66
t-test, df 27.49
t-test, P-value 0.52
Mann-Whitney test, P-value 0.49
1

Secondary structure according to DeepView: Swiss-PdbViewer (Guex and Peitsch, 1997).

2

Accessible surface area (ASA), average relative surface area per residue (%) computed by the NACCESS program (Hubbard and Thornton, 1993).

3

One of two or more amyloidogenic sequences in given protein: only this sequence has residues in helical conformation.