LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Aspartate transcarbamylase in the R state complexed with inhibitor. Computer model showing aspartate transcarbamylase in the R state complexed with inhibitor (not visible).The catalytic subunits in are shown in pink and the regulatory subunits in green. Aspartate transcarbamylase (ATCase) performs an early step in the production of pyrimidine rings, which are used to build nucleotides in DNA and RNA.
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