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putative cross-wall-targeting lipoprotein signal The YSIRK signal domain targets proteins to the cross-wall, or septum, of dividing Gram-positive bacterial. Lipoprotein signal motifs direct a characteristic N-terminal cleavage and lipid modification for membrane anchoring. This Streptococcal-only signal peptide variant appears to be a hybrid between the two, likely directing protein targeting of nascent surface lipoproteins to the cross-wall. Nearly all members of this family have the characteristic LPXTG cell wall anchor signal at the C-terminus. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",