Proliferating cell nuclear antigen molecule. Molecular model of human proliferating cell nuclear antigen (PCNA, blue, green and red), complexed with i

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Proliferating cell nuclear antigen molecule. Molecular model of human proliferating cell nuclear antigen (PCNA, blue, green and red), complexed with its loader protein (purple, orange, grey and maroon). PCNA is a cofactor for DNA (deoxyribonucleic acid) polymerase delta, an enzyme that synthesises the new strand during DNA replication and repair. PCNA acts as a sliding clamp, helping to hold DNA polymerase delta to the DNA strand. The loader protein loads the clamp onto its DNA template strand.

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Size: 4180px × 4180px
Photo credit: © LAGUNA DESIGN/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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