ExamplesTATA boxGC boxCAAT boxPromoterEnhancerSilencerInsulator
TATA box GC box CAAT box Promoter Enhancer Silencer Insulator . Examples
(3)TypesCis-acting elements may be dividedinto two types:positve control elements→acivate transcriptionnegaitve control elements→represstranscription
(3) Types Cis-acting elements may be divided into two types: positve control elements → acivate transcription negaitve control elements → repress transcription
2. Major Types of Cis-Acting Element(1)Promoter--ln genetics, a promoter is a regionof DNA that facilitates the transcription ofa particular gene.Corepromoterin eukaryote: TATA-box, Initiator (Inr)in prokaryote: -10 region, Inr
2. Major Types of Cis-Acting Element (1) Promoter -In genetics, a promoter is a region of DNA that facilitates the transcription of a particular gene. ❖ Core promoter in eukaryote: TATA-box, Initiator (Inr) in prokaryote: -10 region, Inr
Proximal elementsofpromoterin prokaryote: -35 regionCAAT-box, GC-boxin eukaryote:UPE: upstream promoter elementUAS: upstream activating sequence
❖ Proximal elements of promoter in prokaryote: -35 region in eukaryote: CAAT-box, GC-box UPE: upstream promoter element UAS: upstream activating sequence
Prokaryoticpromoter3'5'10-501-10-40-20-305'3'-35startregion-10regionTTGACAAACTGTTATAATATATTA(Pribnowbox)Consensussequence