DNA clamp complexed with DNA molecule. Molecular model showing a sliding DNA (deoxyribonucleic acid) clamp (purple) complexed with a molecule of DNA (yellow and green). The sliding clamp is part of a larger molecule (not seen), a DNA polymerase. DNA polymerases are enzymes that synthesise new strands of DNA from a complementary template strand during DNA replication. The clamp acts to keep the enzyme bound to the DNA.
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