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F plasmid transfer operon protein TraF protein undergoes proteolytic processing associated with export. The 19 amino acids at the amino terminus of the polypeptides appear to constitute a typical membrane leader peptide - not included in this family, while the remainder of the molecule is predicted to be primarily hydrophilic in character. F plasmid TraF and TraH are required for F pilus assembly and F plasmid transfer, and they are both localized to the outer membrane in the presence of the complete F transfer region, especially TraV, the putative anchor. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",