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putative exosortase-associated protein, TIGR04073 family Members of this protein family are found in beta, gamma, and delta proteobacteria, and in the verrucomicrobia. Twenty-two of twenty-four species encountered contain the PEP-CTERM/exosortase system for modulating extracellular polysaccharide biosynthesis production, suggesting a role in protein sorting. The N-terminal signal sequence is divergent and not included in the model. PSI-BLAST and HMM searches suggest a distant sequence relationship between a region of this protein of about 100 amino acids and a corresponding region of the very large eukaryotic protein vps13, associated with vacuolar protein sorting in yeast. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",