dnaN is the gene that codes for the DNA clamp (also known as β sliding clamp) of DNA polymerase III in prokaryotes.[2][3] The β clamp physically locks Pol III onto a DNA strand during replication to help increase its processivity.[4] The eukaryotic equivalent to the β clamp is PCNA.
^Ohmori H, Kimura M, Nagata T, Sakakibara Y (May 1984). "Structural analysis of the dnaA and dnaN genes of Escherichia coli". Gene. 28 (2): 159–70. doi:10.1016/0378-1119(84)90253-1. PMID6234204.
^Armengod ME, García-Sogo M, Lambíes E (August 1988). "Transcriptional organization of the dnaN and recF genes of Escherichia coli K-12". J. Biol. Chem. 263 (24): 12109–14. PMID2841344.