BIOA01H3 Lecture Notes - Lecture 3: Rna Polymerase Ii, Tata Box, Tata-Binding Protein

• School: UTSC
• Department: Biological Sciences
• Course: BIOA01H3
• Professor: Aarti Ashok

Document Summary

Promotor recognition in euk is enhancer sequences bind to diff. types. Tata box is site of assembly of factors terminator complex called general transcription factors > called. Rna has h(cid:455)dro(cid:454)(cid:455)l o(cid:374) (cid:1006)" (cid:272)ar(cid:271)o(cid:374), dna has hydrogen, dna uses thymine/rna uracil. Transcription is initiated at the promotor sequence (tata box in euk) lets rna. Polymerase where to begin transcription and to build the mrna molecule. Termination (stopping of transcription) occurs at the termination sequence mrna is cleaved, modified (in euk), and translated either of 2 strands can encode gene that will transcribed. Promoter can be on either strand, same w/ to be in close proximity to each other. Rna polymerase adds the nucleotides elongation of mrna. Same type of polymerization rxn as dna replication (cid:894)(cid:1007)"oh atta(cid:272)ks 5" phosphate(cid:895) Entry of trinucleotides: dna to be transcribed. In prokaryotes primary transcript is mrna (polycistronic code for multiple proteins) different in. 5" (cid:373)eth(cid:455)l (cid:272)ap is added to (cid:373)rna (cid:894)5-mehtylguanosine) ribosome recognizes.