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. 2015 Jun 26;5:11502. doi: 10.1038/srep11502

Table 2. Mechanical properties for fibres produced using indicated recombinant AcSp1 W2 protein relative to those previously reported for W448 and native A. trifasciata8 fibres.

  W2
 W4 Native AcSp1
Non-spliced Spliced
Breaking strength (MPa) 66.7 ± 15.8 67.8 ± 9.8 115 ± 24 687 ± 56
Breaking strain 0.31 ± 0.11 0.27 ± 0.01 0.37 ± 0.11 0.86 ± 0.03
Toughness (J·cm-3) 18.4 ± 10.4 16.5 ± 6.92 33.8 ± 13.5 376 ± 39
Young’s modulus (GPa) 1.69 ± 0.68 1.48 ± 0.68 2.44 ± 0.54 ~10