NAD(P) transhydrogenase beta subunit
This family corresponds to the beta subunit of NADP transhydrogenase in prokaryotes, and either the protein N- or C terminal in eukaryotes. The domain is often found in conjunction with pfam01262. Pyridine nucleotide transhydrogenase catalyzes the reduction of NAD+ to NADPH. A complete loss of activity occurs upon mutation of Gly314 in E. coli.
Jiyao W et al.(2023). "The conserved domain database in 2023.",