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Table 5 Helix geometry analyzed by HELANAL on the HRes set. Correction: assignments are corrected by shortening each helix by one residue at each terminus. %L: percentage of helices that are linear according to HELANAL. %C: percentage of helices that are curved according to HELANAL. %K: percentage of helices that are kinked according to HELANAL. N: number of helices submitted to HELANAL.

From: Protein secondary structure assignment revisited: a detailed analysis of different assignment methods

Method No correction With Correction
Minimum length 11 9 after correction
  %L %C %K N %L %C %K N
DSSP 8.3 70.0 21.2 2215 10.9 70.8 17.8 2215
STRIDE 10.1 65.9 23.6 2431 10.8 68.5 20.2 2431
PSEA 10.9 78.5 10.0 2260 11.5 80.0 7.8 2260
SECSTR 8.0 55.7 36.0 2349 10.0 59.7 29.9 2349
XTLSSTR 8.7 58.9 32.1 2618 9.5 61.4 28.9 2618
KAKSI 10.2 66.5 22.8 2442 12.3 72.6 14.5 2442
PDB 11.4 71.1 17.0 2565 11.3 71.5 12.0 2565