Structure of the saxitoxin analogs identified in <i>Lyngbya wollei</i> (adapted from [7]).

<p>Structure of the saxitoxin analogs identified in <i>Lyngbya wollei</i> (adapted from <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0014657#pone.0014657-Onodera1" target="_blank">[7]</a>).</p

Organization of the PST biosynthesis cluster in <i>Lyngbya wollei</i>, scale indicates gene size in base pairs, direction of arrowed boxes indicates direction of transcription.

<p>Organization of the PST biosynthesis cluster in <i>Lyngbya wollei</i>, scale indicates gene size in base pairs, direction of arrowed boxes indicates direction of transcription.</p

Proposed biosynthetic pathway for the PSTs produced by <i>Lyngbya wollei</i>.

<p>The gray shaded area highlights the steps that are unique to <i>L. wollei</i>.</p

The saxitoxin biosynthesis genes in <i>Lyngbya wollei</i> and their homology-based functions identified using BlastX (percentage identity is reported).

<p>*Indicates a PsiBLAST search was used.</p