1 / 15

Protein Synthesis

Protein Synthesis. Protein Synthesis. Synthesis= the process of building or making DNA= (deoxyribonucleic acid) the genetic code or instructions for the cell RNA= ribonucleic acid Amino Acids= building blocks of proteins.

onaona
Download Presentation

Protein Synthesis

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. Protein Synthesis

  2. Protein Synthesis • Synthesis= the process of building or making • DNA= (deoxyribonucleic acid) the genetic code or instructions for the cell • RNA= ribonucleic acid • Amino Acids= building blocks of proteins

  3. http://images2.clinicaltools.com/images/gene/dna_versus_rna_reversed.jpghttp://images2.clinicaltools.com/images/gene/dna_versus_rna_reversed.jpg http://www.princeton.edu/%7Ehos/images/rna.gif

  4. STEP 1: TRANSCRIPTION= making RNALocation: Eukaryotes-nucleusProkaryotes-cytoplasm • 1. RNA polymerase binds to the gene’s promoter • 2. The two DNA strands unwind and separate. • 3. Complementary nucleotides are added using the base pairing rules EXCEPT: • A=U • The rest are the same C=G, T=A, G=C

  5. Try this example. • Using the following DNA sequence, what would be the complementary RNA sequence? • ATCCGTAATTATGGC • UAGGCAUUAAUACCG

  6. http://www.odec.ca/projects/2004/mcgo4s0/public_html/t3/mRNA%20to%20protein.gifhttp://www.odec.ca/projects/2004/mcgo4s0/public_html/t3/mRNA%20to%20protein.gif

  7. 1. Messenger RNA= mRNA is a form of RNA that carries the instructions for making the protein from a gene and delivers it to the site of translation. • Codon= three nucleotide sequence • Transfer RNA= tRNA single strands of RNA that temporarily carry a specific amino acid on one end and has an anticodon • Anticodon-a 3 nucleotide sequence that is complementary to an mRNA codon • Ribosomal RNA= rRNA- a part of the structure of ribosomes

  8. Codon and Anticodon • Codon-found on mRNA Anticodon-found on tRNA http://images.google.com/imgres?imgurl=http://www.obgynacademy.com/basicsciences/fetology/genetics/images/codon_GCA.gif&imgrefurl=http://www.obgynacademy.com/basicsciences/fetology/genetics/&usg=__4MvAO2N3sXbERXQwODVDSqtsOjM=&h=160&w=168&sz=4&hl=en&start=5&tbnid=toyuIN8drVBr4M:&tbnh=94&tbnw=99&prev=/images%3Fq%3Dcodon%26gbv%3D2%26hl%3Den http://www.microbelibrary.org/microbelibrary/files/ccImages/Articleimages/kaiser/tRNA_arg.jpg

  9. STEP 2-TRANSLATION- Assembling proteins- in the cytoplasm • mRNA leaves nucleus and enters cytoplasm • tRNA molecules with the complementary anticodon and a specific amino acid arrives at the ribosome where the mRNA is waiting. • Peptide bond forms between amino acids • tRNA molecule leaves and a new one comes with another amino acid. • Amino acids continue to attach together until the stop codon and a protein is formed

  10. SUMMARY • Transcription= process of making RNA from DNA • Translation= RNA directions are used to make a protein from amino acids • DNARNA Protein • Transcription Translation Cytoplasm on ribosome nucleus

  11. Video Clips • http://www.youtube.com/watch?v=KvYEqGb7XN8&feature=related • http://www.youtube.com/watch?v=B6O6uRb1D38&feature=related

  12. Explain the steps in protein synthesis. http://stemcells.nih.gov/info/scireport/images/figurea6.jpg

More Related