LA TRANSCRIPTION - UPMC

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5' 3' COMPLEXE D'INITIATION DE <strong>LA</strong> <strong>TRANSCRIPTION</strong> EUCARYOTE TBP TFIID promoteur TFIIF TFIIE boîte TATA TFIIB TFIIH +1 ARN polymérase II sens de la transcription 3' 5'
guanine CH3 7 L'ARN PRE-MESSAGER EUCARYOTE O HO HO CH2 5' "coiffe" : 7-méthyl-guanosine 1' 3' liaison 5'-5' triphosphate P P P Un ARN pré-messager eucaryote porte une "coiffe" en 5' et une queue polyA en 3'. CH2 5' 3' O OH OH ribonucléotide 2 5' AAUAAA 5' signal de terminaison base 1' site de coupure 5' AAUAAA AAAAAAAA "coiffe" 5' AAUAAA 3' ribonucléotide 1 ARN polymérase II ARN polymérase II poly(A)-polymérase queue polyA AAUAAA AAAAAAAA...AAAAAAAAOH 3'
Page 1 and 2: Introduction LA TRANSCRIPTION I. Mo
Page 3 and 4: L'ARN POLYMERASE BACTERIENNE L'ARN
Page 5 and 6: 5' TERMINAISON DE LA TRANSCRIPTION
Page 7: L'ARN POLYMERASE II EUCARYOTE (ADN
Page 11 and 12: 5' 5' EPISSAGE ALTERNATIF ARN pré-
Page 13 and 14: 5' ADN 3' INITIATION DE LA TRANSCRI
Page 15 and 16: ADN 5' 3' brin transcrit TRANSCRIPT

LA TRANSCRIPTION - UPMC

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