Figure 2
From: Bacteria inhabiting spider webs enhance host silk extensibility

Results of NMR of native, ether washed, and ether plus 0.1% Triton X washed major ampullate silk (MAS) fibers collected from Triconephila clavata. Each spectrum was produced using MAS from a single individual spider. Arrows indicate the putative identification of a methyl group of the lipid layer at 1.4 PPM.