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Schematic of NARC-1 and its closest family members. Their catalytic subunits share ≈42% identity (id) and their lengths in amino acids are indicated on the right. The positions of the RRG(E,D) and the single N-glycosylation site in the P domain (P dom) are emphasized along with that of the signal peptide (SP) and the primary and putative secondary (?) cleavage sites in the prosegment (pro). CT, C-terminal domain.
