The Enzyme Database

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EC 2.3.2.12     
Accepted name: peptidyltransferase
Reaction: peptidyl-tRNA1 + aminoacyl-tRNA2 = tRNA1 + peptidyl(aminoacyl-tRNA2)
Other name(s): transpeptidase; ribosomal peptidyltransferase
Systematic name: peptidyl-tRNA:aminoacyl-tRNA N-peptidyltransferase
Comments: The enzyme is a ribozyme. Two non-equivlant ribonucleoprotein subunits operate in non-concerted fashion in peptide elongation. The small subunit forms the mRNA-binding machinery and decoding center, the large subunit performs the main ribosomal catalytic function in the peptidyl-transferase center.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 9059-29-4
References:
1.  Rychlik, I. Release of lysine peptides by puromycin from polylysyl-transfer ribonucleic acid in the presence of ribosomes. Biochim. Biophys. Acta 114 (1966) 425–427. [PMID: 5329275]
2.  Rychlik, I., Cerná, J., Chládek, S., Zemlicka, J. and Haladová, Z. Substrate specificity of ribosomal peptidyl transferase: 2′(3′)-O-aminoacyl nucleosides as acceptors of the peptide chain on the amino acid site. J. Mol. Biol. 43 (1969) 13–24. [PMID: 4897787]
3.  Traut, R.R. and Monro, R.E. The puromycin reaction and its relation to protein synthesis. J. Mol. Biol. 10 (1964) 63–72.
4.  Voorhees, R.M., Weixlbaumer, A., Loakes, D., Kelley, A.C. and Ramakrishnan, V. Insights into substrate stabilization from snapshots of the peptidyl transferase center of the intact 70S ribosome. Nat. Struct. Mol. Biol. 16 (2009) 528–533. [PMID: 19363482]
[EC 2.3.2.12 created 1976]
 
 


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