Research Article

Crystal Structure of Locally Available Tassar Fibers Based on [ A l a - G l y ] 𝑛 Amino Acid Sequence: Using X-Ray Data and LALS Method

Table 3

Fractional atomic coordinates of Tassar silk fiber for the repeating unit of (Ala-Gly).

AtomChain-aChain-b
𝑥 𝑦 𝑧 𝑥 𝑦 𝑧

Ala
 N0.2370.6530.0600.2620.3460.560
  H 𝑁 0.2470.7470.0500.2520.2520.550
  C 𝛼 0.2720.5810.2310.2270.4180.731
  C 𝛽 0.4310.5570.2370.0680.4420.737
  H 𝛼 0.2190.4990.2240.2800.5000.724
  C  0.2280.6540.4110.2710.3450.911
  O 0.2300.7700.4130.2690.2290.912

Gly
 N0.1880.5830.5590.3110.4161.059
  H 𝑁 0.1860.4890.5560.3130.5101.056
  C 𝛼 0.1470.6440.7370.3520.3551.237
  H 𝛼 1 0.0410.6550.7400.4580.3441.240
  H 𝛼 2 0.1930.7280.7480.3060.2711.248
  C  0.1890.566−0.0850.3100.4330.414
 O(2)0.1830.464−0.0660.3160.5350.433