1 / 11

Translation

Translation. The Anti-Codon. Complementary to codons Found on tRNA 1 tRNA per amino acid Aminoacyl tRNA synthetase. The process where mRNA is converted to a protein (polypeptide chain) using tRNA & ribosomes. Ribosomes Coordinate pairing betw. tRNA anti-codons & mRNA codons

zoey
Download Presentation

Translation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Translation

  2. The Anti-Codon • Complementary to codons • Found on tRNA • 1 tRNA per amino acid • Aminoacyl tRNA synthetase

  3. The process where mRNA is converted to a protein (polypeptide chain) using tRNA & ribosomes • Ribosomes • Coordinate pairing betw. tRNA anti-codons & mRNA codons • Composed of rRNA & protein • rRNA transcribed from DNA • Lg. & Sm. Subunits separate until transl. Begins • Subunits constructed in nucleolus

  4. Initiation of Translation Formation of initiation complex • mRNA binds to small subunit • tRNA with N-formylmethionine (F-met) attaches to start codon • Lg. Subunit attaches-f-met in P-site

  5. F-met Elongation Incoming tRNA Binds to codon In A site Entire polypep. Chain transferred To tRNA in Asite Ribosome Moves  1 codon tRNA in Asite moves to P site tRNA in E (exit) site moves out Peptidyl transferase

  6. Termination • elongation continue until stop codon reaches A site • There is no anti-codon for the stop codon!!! Hydrolyzes bond betw. Polypep. & tRNA

  7. Polyribosomes-cluster of ribos. Simultaneously translating same mRNA moleculeallows multiple copies to be made quickly

More Related