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Table 1 The tilt angles of transmembrane helices in SsTRIC and CeTRIC-B1/B2

From: Ion- and water-binding sites inside an occluded hourglass pore of a trimeric intracellular cation (TRIC) channel

Transmembrane helices   η angle (°)  
SsTRIC CeTRIC-B1 CeTRIC-B2
M1 26.9 31.5 34.8
M2a 46.0 64.1 66.9
M2b 41.5 63.0 61.7
M3 14.1 21.2 20.7
M4 19.0 46.7 46.2
M5a 51.8 54.6 55.6
M5b 37.8 59.4 60.4
M6 25.3 17.7 20.3
M7 4.7 13.2 19.9
  1. The tilt angle (η) is defined as the angle between the axis of each individual transmembrane helix and the central C3 axis (parallel with the membrane normal) of the SsTRIC trimer or CeTRIC-B1/B2 trimer