Puromycin (hydro<wbr>chloride)

Puromycin (hydrochloride)

CAT N°: 13884
Price:

From 55.00 46.75

Puromycin is an aminonucleoside antibiotic, derived from S. alboniger, that blocks protein synthesis in both prokaryotes and eukaryotes by causing premature termination of nascent polypeptide chains.{21743} A portion of the puromycin molecule resembles the 3′ end of aminoacylated tRNA.{21742} It enters the A site of the ribosome and attaches to the growing polypeptide chain at the peptidyl transferase center, causing the formation of a puromycylated nascent chain and premature chain release.{21744} The 3′ position contains an amide linkage instead of the normal ester linkage of tRNA, making it much more resistant to hydrolysis and halting the activity of the ribosome.{21744} These properties of puromycin have been exploited in assays for peptide-bond formation and elongation and also the antibiotic is often used as selective agent in cell culture systems.

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