8 - Bio 102 Retroviruses RNA Single unpaired strand Regular...

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Bio 102 08/02/2008 10:11:00 Retroviruses – RNA Single unpaired strand Regular Virus – DNA mRNA – messenger cytoplasm combines Ribosome’s   Protein synthesis Know the difference between prokaryotes and eukaryotes tRNA – transfer simple molecule 75-85 bases 3 Prime end –  o amino acid attached Anticodon on opposite end 61 codons that code for amino acids 45 different tRNA Anticodon first two letters important; not so much the third position WOBBLE still able to pair     Raw transcripts were 8000 nucleotides Average protein 400 amino acids (400 x 3 = 1200 nucleotides) Alternative splicing AAG matches with UUC Ribosmes  free in the cytoplasm Large sub-unit and small sub unit
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2 different types of RNA made in nucleus 34 different proteins Initiation Starting – mRNA bringing to small ribosomal sub unit Then tRNA carrying methienine binds to start codon on mRNA Large sub unit binds and starts running GTP for energy not ATP!!! o GTP   GDP AUG matches with UAC Elongation Termination Stop Codon Protein comes in that causes a release factor and causes it to stop Speed: 10 amino acids per sec in prokaryotes
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This note was uploaded on 03/03/2008 for the course BIO G 102 taught by Professor Walcott during the Spring '08 term at Cornell University (Engineering School).

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8 - Bio 102 Retroviruses RNA Single unpaired strand Regular...

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