One of the most studied model organisms is the Escherichia coli

Gram staining is a method of staining used to differentiate bacterial species into two large groups (gram-positive and gram-negative), by detecting peptidoglycan, which is present in a thick layer in gram-positive bacteria

Actinobacteria is a phylum of Gram-positive bacteria with high guanine and cytosine content in their DNA

Streptomyces is the largest genus of Actinobacteria

Streptomyces hygroscopicus produces Sirolimus, also known as rapamycin which is an inhibitor of the Kinase enzyme Mechanistic target of rapamycin