Web Results


What is the role RNA polymerase?-binds to DNA during transcription and separates the DNA strands-then uses one strand of DNA as a template from which to assemble nucleotides into a complementary strand of RNA. What regions of DNA does RNA polymerase bind to?-promoters.


Also known as DNA dependent RNA plymerase, its primary role is to produce primary transcript RNA, by using DNA as a template. The process is called as transcription. RNA polymerase is present in almost all of the organsims, but may be present in different numbers in each organsim.


RNA polymerase (ribonucleic acid polymerase), abbreviated RNAP or RNApol, officially DNA-directed RNA polymerase, is an enzyme that synthesizes RNA from a DNA template. RNAP locally opens the double-stranded DNA (usually about four turns of the double helix) so that one strand of the exposed nucleotides can be used as a template for the synthesis of RNA, a process called transcription.


RNA Polymerase Definition. A RNA polymerase (RNAP), or ribonucleic acid polymerase, is a multi subunit enzyme that catalyzes the process of transcription where an RNA polymer is synthesized from a DNA template. The sequence of the RNA polymer is complementary to that of the template DNA and is synthesized in a 5’→ 3′ orientation.


Role of RNA polymerase in gene transcription demonstrated Date: July 19, 2010 Source: University of Maryland Summary: Biophysicists have provided new insight into the mechanisms of gene transcription.


DNA Polymerase synthesizes a DNA strand and used in DNA replication while RNA Polymerase is used during transcription to synthesize the MRNA strand. In contrast with the DNA polymerase, RNA polymerases do not necessarily require the so called primer to start the process and they actually have no proofreading systems.


In this article we will discuss about the role of RNA polymerase in transcription. RNA polymerase enzymes are complex enzyme which in E. coli is made up of 5 subunits or polypeptide chains designated β, β’, α, σ and ω with respective molecular weights of 160,000, 150,000, 90,000, 40,000 and 10,000.


The promoter region has no role in translation. It is the site where RNA Polymerase binds to initiate transcription. Basically, talking about bacteria, a protein called sigma70 binds to the ...


One answer would be that RNA Polymerase plays no role in DNA replication — but it depends on what you mean by “RNA Polymerase.” There is an enzyme usually called Primase which is an RNA Polymerase. The problem is that no DNA Polymerase can START a...


Physical experiments have confirmed that RNA polymerase makes contact with these two regions when binding to the DNA. The enzyme then unwinds DNA and begins the synthesis of an RNA molecule. The dissociative subunit of RNA polymerase, the σ factor, allows RNA polymerase to recognize and bind specifically to promoter regions.