DNA polymerase requires two processing factors, sliding clamps and clamp loaders, to direct rapid and accurate duplication of genomic DNA. In eukaryotes, proliferating cell nuclear antigen (PCNA), the ...

Processive DNA polymerases that replicate chromosomes interact with a ring-shaped clamp that encircles DNA and slides along the duplex. All sliding clamps (Escherichia coli β-clamp, T4 bacteriophage ...

Offered in various diameter sizes and standard thread configurations, the bridle rings attach with beam clamps on flanges up to a ½ in. Beam clamps include the JH966-100 for 1 / 8 -in. to ½-in.

Silicon wafers aren't the only things that lose material in the various etching steps of IC manufacturing. The clamp rings which hold the wafers also erode during the process. Plastic clamp rings are ...