KENNETH EWARD / BIOGRAFX / SCIENCE PHOTO LIBRARY KENNETH EWARD / BIOGRAFX / SCIENCE PHOTO LIBRARY
Thymidylate synthase enzyme. Computer-generated molecular model of thymidylate synthase, an enzyme used in the synthesis of Deoxyribonucleic Acids (DNA). Drug treatments (chemotherapy) for cancer often target this enzyme. The molecule has a protein backbone covered with a surface which is split into two units (magenta and blue). Synthases are enzymes which help to catalyse the synthesis of high-energy phosphate bonds. DNA molecules, which are an organism's genetic code, are made of long strands comprised of sugar and phosphate groups. Cancer is an illness caused by requires DNA synthesis.
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