Protein
Secreted effector protein EspF(U)
Organism
Escherichia coli O157:H7 (strain TW14359 / EHEC)
Function
Required for efficient pedestal formation in host epithelial cells during infection. Acts as an intermediate between Tir (via host BAIAP2) and host WASL/N-WASP. Directly binds and activates WASL/N-WASP, which stimulates actin polymerization and leads to the formation of actin pedestals at the sites of bacterial adhesion (By similarity).
Similarity
Belongs to the EspF(U)/TccP family.
Sequence
MINNVSSLFPTVNRNITAVYKKSSFSVSPQKITLNPVKISSPFSPSSSSISATTLFRAPNAHSASFHRQSTAESSLHQQLPNVRQRLIQHLAEHGIKPARSMAEHIPPAPNWPAPPPPVQNEQSRPLPDVAQRLVQHLAEHGIQPARNMAEHIPPAPNWPAPPLPVQNEQSRPLPDVAQRLVQHLAEHGIQPARSMAEHIPPAPNWPAPPPPVQNEQSRPLPDVAQRLMQHLAEHGIQPARNMAEHIPPAPNWPAPTPPVQNEQSRPLPDVAQRLMQHLAEHGIQPARNMAEHIPPAPNWPAPTPPVQNEQSRPLPDVAQRLMQHLAEHGINTSKRS