Members of this family are highly variable in length immediately after the well-conserved motif LGLGLXGG at the amino-terminal end of this model. Archaeal homologs are not included in the seed and score between the trusted and noise cutoffs. SecD from Mycobacterium tuberculosis has a long Pro-rich insert. [Protein fate, Protein and peptide secretion and trafficking]
Jiyao W et al.(2023). "The conserved domain database in 2023.",