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DNA polymerase type-B zeta subfamily catalytic domain. DNA polymerase (Pol) zeta is a member of the eukaryotic B-family of DNA polymerases and distantly related to DNA Pol delta. Pol zeta plays a major role in translesion replication and the production of either spontaneous or induced mutations. Apart from its role in translesion replication, Pol zeta also appears to be involved in somatic hypermutability in B lymphocytes, an important element for the production of high affinity antibodies in response to an antigen.
Lu S et al.(2020). "CDD/SPARCLE: the conserved domain database in 2020.",