TRANS ACTING FACTORS Meaning and
Definition
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Trans-acting factors refer to proteins or molecules that regulate the expression of genes located on a different DNA molecule or chromosome. These factors are capable of binding to specific DNA sequences, known as cis-regulatory elements, which are usually located upstream or downstream of a target gene. By binding to these cis-regulatory elements, trans-acting factors can either promote or inhibit the transcription of the target gene.
Trans-acting factors are important for regulating gene expression and play a vital role in various cellular processes such as development, differentiation, and response to environmental cues. They can modify the transcription machinery by interacting with components such as RNA polymerase or other transcription factors, thereby influencing the rate of gene transcription.
These factors are typically encoded by genes that are located on different chromosomes from those where the target genes are located. They are synthesized in the cytoplasm and then transported into the nucleus, where they exert their regulatory functions. Trans-acting factors often possess specific DNA binding domains, such as zinc fingers or helix-loop-helix motifs, which enable them to recognize and bind to the cis-regulatory elements in the target genes.
Understanding the role and function of trans-acting factors is crucial for unraveling the complex network of gene regulation and the mechanisms underlying various biological processes. They provide a versatile means of gene regulation, allowing cells to respond to internal and external signals and adapt their gene expression profile accordingly.
Common Misspellings for TRANS ACTING FACTORS
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