different between ansamycin vs rifamycin

English

From Latin ansa (“handle”) (from their unique structure) +? -mycin.

ansamycin (plural ansamycins)

(biochemistry) Any of a family of secondary metabolites with antimicrobial and antiviral effects.

From French Rif(ifi) (“a French crime film”) +? am(ino)- +? -mycin (“antibiotic”).

rifamycin (uncountable)

(pharmacology) Any of a group of antibiotics, a subclass of the ansamycins, which are synthesized either naturally by the bacterium Amycolatopsis mediterranei or artificially.

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