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. 2009 Mar 18;96(6):2299–2312. doi: 10.1016/j.bpj.2008.12.3894

Table 3.

Frequency of R values in 70 nonredundant TM chains

R 0–1 1–2 2–3 3–4 4–5 5–10 10–500
Frequency 0.12 0.41 0.20 0.07 0.06 0.10 0.04
〈n〉 2.9 7.3 15.8 22.3 21.3 32.5 154.9
nmax 6 24 44 45 39 64 433

Frequency of loops with a flexibility ratio, R, based on 236 interhelical loops. 〈n〉 and nmax are the average and maximum number, respectively, of loop residues for each R bin.