<p>An evidence describes the source of an annotation, e.g. an experiment that has been published in the scientific literature, an orthologous protein, a record from another database, etc.</p>
Protein involved in the biochemical reactions of steroids. Steroids are a large group of complex tetracyclic lipids that consist of a 17-carbon-ring system. Examples are bile acids, sterols, various hormones and saponins.