High School

We appreciate your visit to Classify the following proteins involved in siRNA and miRNA post transcriptional regulation with their function Helicase activity unwinds double stranded RNA A Dicer B RISC. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

Classify the following proteins involved in siRNA and miRNA post-transcriptional regulation with their function:

Helicase activity unwinds double-stranded RNA.

A. Dicer
B. RISC
C. Argonaute
D. Drosha

Answer :

Final answer:

Dicer cleaves RNAs for RISC binding, RISC targets mRNA for degradation, Argonaute is a component of RISC, and Drosha processes pri-miRNAs. None have helicase activity.

Explanation:

In the context of siRNA and miRNA post-transcriptional regulation, the functions of the proteins listed are as follows:

  • dicer: This is an enzyme with endoribonuclease activity which cleaves long double-stranded RNAs and pre-miRNAs into short fragments, which are then involved in gene silencing when they bind to the RISC complex.
  • RISC (RNA-induced Silencing Complex): A multi-protein complex that incorporates siRNAs or miRNAs, which then target complementary mRNA for degradation, thereby regulating gene expression.
  • Argonaute: A family of proteins that are an essential component of RISC; they bind siRNAs and miRNAs and facilitate the gene-silencing process.
  • Drosha: Part of the Microprocessor complex, it is responsible for processing pri-miRNAs into pre-miRNAs, which are then further processed by dicer into mature miRNAs.

None of the proteins listed have helicase activity to unwind double-stranded RNA; rather, they have different but specific roles in the RNA interference pathway.

Thanks for taking the time to read Classify the following proteins involved in siRNA and miRNA post transcriptional regulation with their function Helicase activity unwinds double stranded RNA A Dicer B RISC. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada