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​Which of the following is not a characteristic of transcriptional activator proteins?


Which of the following is not a characteristic of transcriptional activator proteins?

 They can interact with other components of the transcriptional apparatus.

 They are capable of binding DNA at a consensus sequence in the protein-coding part of the gene.

 They contain one or more DNA-binding motifs.

 They are capable of binding DNA at a consensus sequence of a regulatory promoter.

 They can influence the rate of transcription.


Solutions

Expert Solution

Answer: Choice 2

Reason: The activators or transcription activator proteins are those moleucles which help in regulating the rate and extent of gene expression by binding directly to a regulatory promoter or a part of the consensus sequence required for transcription. However, it never binds directly to the coding region or euchromatin of the gene since the binding would block the transition of the RNA polymerase on the gene, hence preventing transcription.

gladiator answered 2 years ago
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