Polyketides – Lipids

00:00 tail that is shown on the left.

00:01 The polyketides are another class of lipids that are very, very interesting. The polyketides are typically molecules that are made by organisms to protect themselves in the environment in which they reside and also to stake out environment for them. These molecules that you see on the screen are made by an organism called streptomyces. Erythromycin on the left is an antibiotic and it kills bacteria, it's very commonly used for this purpose.

00:27 Natamycin on the other hand is an antifungal agent. Now each of these structures looks very, very complicated, but in fact they have very, very simple origins. Both of these molecules are made as by products and derivatives of the synthesis of fatty acids.

00:45 This concludes what I want to say in this portion of the lecture about the structure of the basic lipids. There will be another lecture that will cover other structures of other lipids and also the way in which all of these molecules are metabolized.