Fig. 1

Characteristic patterns formed by contacting SSEs in inter-residue contact map. Two contacting parallel \(\beta\)-strands often form a diagonal line (rectangle in red), whereas two contacting anti-parallel \(\beta\)-strands form an anti-diagonal line (rectangle in blue). In contrast, two contacting helices usually form a dashed line (rectangle in green). These characteristic patterns could be used to infer inter-SSE contacts