{"id":2123,"date":"2007-05-16T07:00:59","date_gmt":"2007-05-16T07:00:59","guid":{"rendered":"https:\/\/blogs.nature.com\/thescepticalchymist\/2007\/05\/crazy-frogs.html"},"modified":"2007-05-16T07:00:59","modified_gmt":"2007-05-16T07:00:59","slug":"crazy_frogs","status":"publish","type":"post","link":"https:\/\/blogs.nature.com\/thescepticalchymist\/2007\/05\/crazy_frogs.html","title":{"rendered":"Crazy frogs"},"content":{"rendered":"

A paper in PNAS<\/span><\/a> has just caught my eye, because it emphasizes a problem common in natural product research \u2013 where do these funky molecules really originate?<\/p>\n

This collaborative effort looks at alkaloids \u2014 including the synthetically challenging pumiliotoxins \u2014 that are isolated from Oophaga pumilio<\/a><\/em> poison frogs. But these toxic amphibians don\u2019t make the alkaloids themselves. It turns out that they get them by eating mites. What\u2019s more, these mites contain lots of new alkaloids that hadn\u2019t previously been discovered.<\/p>\n

This reminded me of a story I once heard about another famous natural product, epibatidine<\/a>, which was also isolated from a frog. Someone had the bright idea of farming the frogs, so that the precious compound could be harvested. But the farmed frogs didn\u2019t have any epibatidine in their skins, because they hadn\u2019t been eating the right food. Bang goes another brilliant idea\u2026<\/p>\n

So the next time you see a natural product synthesis, think of the story behind the compound, and the complex biological chains that originally led to it. Not forgetting of course, the unsung heroes who chase insects all over Costa Rica to work out the links of these chains.<\/p>\n

Andy<\/p>\n

PS If you’re interested in other tales of natural product isolation, have a look at this paper<\/a> in Angewandte Chemie<\/a> <\/em> which reports the identification of Platencin (an antibiotic structurally related to platensimycin, which was reported in Nature<\/em><\/a> last year).<\/p>\n

Andrew Mitchinson (Associate Editor, Nature<\/a><\/em>)<\/p>\n","protected":false},"excerpt":{"rendered":"

A paper in PNAS has just caught my eye, because it emphasizes a problem common in natural product research \u2013 where do these funky molecules really originate?  Read more<\/a> Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":154,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-2123","post","type-post","status-publish","format-standard","hentry","category-andrew-mitchinson"],"_links":{"self":[{"href":"https:\/\/blogs.nature.com\/thescepticalchymist\/wp-json\/wp\/v2\/posts\/2123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.nature.com\/thescepticalchymist\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.nature.com\/thescepticalchymist\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.nature.com\/thescepticalchymist\/wp-json\/wp\/v2\/users\/154"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.nature.com\/thescepticalchymist\/wp-json\/wp\/v2\/comments?post=2123"}],"version-history":[{"count":0,"href":"https:\/\/blogs.nature.com\/thescepticalchymist\/wp-json\/wp\/v2\/posts\/2123\/revisions"}],"wp:attachment":[{"href":"https:\/\/blogs.nature.com\/thescepticalchymist\/wp-json\/wp\/v2\/media?parent=2123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.nature.com\/thescepticalchymist\/wp-json\/wp\/v2\/categories?post=2123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.nature.com\/thescepticalchymist\/wp-json\/wp\/v2\/tags?post=2123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}