Lecture_nineteen - Lecture Nineteen Review of overall...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Lecture Nineteen I. Review of overall process II. The molecular structures in “Translation” III. Stages in Translation IV. Protein trafficking V. Replication Errors
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 I. Review: Overall process
Background image of page 2
3 II. The molecular structures in “Translation” A. Messenger RNA (mRNA) mRNA Made artificial mRNA
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 A. Transfer RNA It carries an amino acid (interprets the genetic code: DNA tRNA—aa ) It associates with the mRNA It interacts with ribosomes tRNA, the adaptor molecule: for each amino acid, there is a specific type or “species” of tRNA.
Background image of page 4
5 tRNA and how it Carries amino-acids aa Always CCA Anti-Codon
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6 3′ end is the amino acid attachment site— binds covalently. Step 1: enzyme + ATP + AA Enzyme—AMP—AA + PPi Step 2: Enzyme—AMP—AA + tRNA Enzyme + AMP +tRNA—AA Charged tRNA 3’—OH
Background image of page 6
7 Amino-acyl-tRNA Synthase
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
8 So, the enzyme is needed for: 1. Recognize specific AA 2. Recognize specific tRNA What would happen if you changed the “Alanine” on the tRNA to a phenylalanine?
Background image of page 8
9 A. Ribosomal RNA and Ribosomes
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 30

Lecture_nineteen - Lecture Nineteen Review of overall...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online