RNA polymerase II molecule

RNA polymerase II molecule

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Credit: DR MARK J. WINTER/SCIENCE PHOTO LIBRARY

Caption: RNA polymerase II. Computer model showing the secondary structure of the enzyme RNA polymerase II. The molecule comprises 12 subunits. This enzyme synthesises a complementary mRNA (messenger ribonucleic acid) strand from a strand of DNA (deoxyribonucleic acid) during a process called transcription. It recognises a start sign on the DNA strand and then moves along the strand building the mRNA until it reaches a stop sign. mRNA is the intermediary between DNA and its protein product.

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Keywords: alpha helix, artwork, beta sheet, biochemical, biochemistry, computer artwork, computer model, dna transcription, enzyme, genetic, genetics, helices, illustration, molecular, molecular model, molecule, mrna, nucleotidyl transferase, protein, ribonucleic acid, rna pol, rna polymerase ii, rnapol, secondary structure, sheets

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