Question

Which of the following drug belongs to class of antibiotic called ansamycins?

• A. Rifampin
• B. Streptomycin
• C. Azithromycin
• D. Streptozotocin

Answer 1

The Correct Option is A

The question asks us to identify the antibiotic that belongs to the class known as "ansamycins." Let's analyze each option to determine which is the correct answer.

1. Rifampin: Rifampin is an antibiotic commonly used to treat tuberculosis and other bacterial infections. It belongs to the class of antibiotics known as ansamycins. These antibiotics are characterized by their unique structure, which includes an aromatic nucleus linked through an aliphatic bridge, forming a macrocyclic lactam. Therefore, Rifampin is the correct answer.
2. Streptomycin: Streptomycin belongs to the aminoglycoside class of antibiotics. It is primarily used to treat tuberculosis and some bacterial infections. However, it is not an ansamycin.
3. Azithromycin: Azithromycin is a macrolide antibiotic. It is commonly used to treat various bacterial infections, especially respiratory infections. It does not belong to the ansamycin class.
4. Streptozotocin: Streptozotocin is not an antibiotic; it is a compound used in cancer research and diabetic studies because of its ability to selectively target insulin-producing beta cells. This option is completely unrelated to the ansamycin class.

Given these clarifications, Rifampin is the correct answer as it is the only drug listed that belongs to the ansamycin class of antibiotics.