The following sequence is a portion of a eukaryotic promoter. The +1 coordinate (the transcription start...

The following sequence is a portion of a eukaryotic promoter. The +1 coordinate (the transcription start site) is indicated as the red/bold “g”.

cggctcaataaaataacaggagtctataaaagcgtggggacagttcaggagggggctcgc

TBP binds a cis-acting element within this sequence. What is the coordinate of the 5’ deoxynucleotide of this cis-acting element?

Solutions

Expert Solution

TBP = TATA binding protein.
It is a general transcription factor that binds to the TATA box +30 base upstream to the transcription start site.
TATA box consencus sequence: 5'-TATA(A/T)A(A/T)-3'

Given sequence:

CGGCTCAATAAAATAACAGGAGTCTATAAAAGCGTGGGGACAGTTCAGGAGGGGGCTCGC

The position of TATA box is bold, italic and underlined.

gladiator answered 1 year ago

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