World Library  
Flag as Inappropriate
Email this Article

Peptidyl transferase

Article Id: WHEBN0002100199
Reproduction Date:

Title: Peptidyl transferase  
Author: World Heritage Encyclopedia
Language: English
Subject: Ribosome, Chloramphenicol, 50S, Scott Strobel, Lecithin—cholesterol acyltransferase
Publisher: World Heritage Encyclopedia

Peptidyl transferase

The Peptidyl transferase is an aminoacyltransferase (EC as well as the primary enzymatic function of the ribosome, which forms peptide bonds between adjacent amino acids using tRNAs during the translation process of protein biosynthesis.

Peptidyl transferase activity is carried out by the ribosome. Peptidyl transferase activity is not mediated by any ribosomal proteins but by ribosomal RNA (rRNA), a ribozyme. This RNA relic is the most significant piece of evidence supporting the RNA World hypothesis.

  • In Prokaryotes, the 50S (23S component) ribosome subunit contains the peptidyl transferase component and acts as a ribozyme.
  • In Eukaryotes, the 60S (28S component) ribosome subunit contains the peptidyl transferase component and acts as the ribozyme.

Peptidyl transferases are not limited to translation, but there are relatively few enzymes with this function.

Antibiotic target

The following protein synthesis inhibitors target peptidyl transferase:

See also


  1. ^ Gu Z, Harrod R, Rogers EJ, Lovett PS (June 1994). "Anti-peptidyl transferase leader peptides of attenuation-regulated chloramphenicol-resistance genes". Proc. Natl. Acad. Sci. U.S.A. 91 (12): 5612–6.  
  2. ^ Long, Katherine S; Hansen, LH; Jakobsen, L; Vester, B (April 2006). "Interaction of Pleuromutilin Derivatives with the Ribosomal Peptidyl Transferase Center". Antimicrobial Agents and Chemotherapy 50 (4): 1458–1462.  
  3. ^ Protein synthesis inhibitors: macrolides mechanism of action animation. Classification of agents Pharmamotion. Author: Gary Kaiser. The Community College of Baltimore County. Retrieved on July 31, 2009

External links

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.