STREPTOGRAMINS Meaning and
Definition
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Streptogramins are a class of antibiotics that are derived from the soil bacterium Streptomyces. They are composed of two distinct subclasses of compounds, namely, type A and type B streptogramins. These antibiotics work together synergistically to exhibit potent antibacterial activity against a broad range of Gram-positive bacteria, including multidrug-resistant strains such as methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE).
Type A streptogramins, also known as streptogramin A, bind to the bacterial ribosomes and inhibit the early stages of protein synthesis. They primarily target the peptidyltransferase center, preventing the formation of peptide bonds between amino acids.
Type B streptogramins, also known as streptogramin B, act later in the protein synthesis process. They bind to the 50S subunit of bacterial ribosomes and induce a conformational change that ultimately leads to the release of the incomplete protein chain.
The combination of type A and type B streptogramins creates a synergistic effect as they can bind to separate sites on the ribosomes simultaneously, inhibiting different stages of protein synthesis. This synergistic action enhances the efficacy of streptogramins against bacterial pathogens.
Due to their unique mechanism of action, streptogramins are considered critically important antibiotics in the clinical setting, particularly in the management of infections caused by multidrug-resistant Gram-positive bacteria. However, their use is often reserved for serious infections due to concerns about potential adverse effects and the development of bacterial resistance.
Common Misspellings for STREPTOGRAMINS
- atreptogramins
- ztreptogramins
- xtreptogramins
- dtreptogramins
- etreptogramins
- wtreptogramins
- srreptogramins
- sfreptogramins
- sgreptogramins
- syreptogramins
- s6reptogramins
- s5reptogramins
- steeptogramins
- stdeptogramins
- stfeptogramins
- stteptogramins
- st5eptogramins
- st4eptogramins
- strwptogramins
- strsptogramins
Etymology of STREPTOGRAMINS
The word "Streptogramins" is derived from two components: "Strepto-" and "-gramins".
1. "Strepto-" comes from the Greek word "streptos", which means twisted or curved. It is a prefix used in various scientific terms to denote the twisted or spiral shape of certain organisms or structures. In this case, it refers to the twisted shape of Streptomyces bacteria, which produce these antibiotics.
2. "-gramin" is derived from the Latin word "graminis", meaning grass, and it refers to the antibiotic activity of these compounds against Gram-positive bacteria. The term "gramin" is commonly used in microbiology to describe substances that target Gram-positive bacteria.
Therefore, the term "Streptogramins" describes a group of antibiotics produced by Streptomyces bacteria, which have a twisted or spiral shape and are effective against Gram-positive bacteria.
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