Enzymatic Regioselection for the Synthesis and Biodegradation of Porphysome Nanovesicles

A select few: An enzyme screen is used to identify two enzymes that selectively cleave porphyrin–lipid regioisomers (see picture). Either of the isomerically pure conjugates assembles into physically similar porphysome nanovesicles. Although porphysomes formed from both regioisomers are stable in serum in vivo, only one regioisomer rapidly degrades upon uptake in the liver. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.