The catalytic region of DNA polymerase beta is split into three domains. An N-terminal fingers domain, a central palm domain and a C-terminal thumb domain. This entry represents the palm domain [1].

1: Crystal structure of rat DNA polymerase beta: evidence for a common polymerase mechanism. Sawaya MR, Pelletier H, Kumar A, Wilson SH, Kraut J; Science. 1994;264:1930-1935. PMID:7516581