Figure 1

Schematic of the protein encoded by the complete Argiope argentata aciniform spidroin 1 gene (GenBank KJ206620). Predicted protein is 4,479 aa. Conserved spidroin N- (orange) and C- terminal (blue) domains (shaded boxes) flank 20 iterated repeats (numbered boxes). Boxes are drawn to scale and standardized to the 204 aa length of the first 19 repeats. Arrows point to corresponding amino acid sequences for each domain. Exemplar repeat 11 has 100% identity to the majority rule consensus of the repeat sequences. Alanine (red), serine (purple), and glycine (green) are shaded to emphasize the abundance of those amino acids.