Prevents premature polymerization of pscF, along with pscG, within the cytoplasm. Required for type III secretion needle assembly. Also required for cytotoxicity by influencing pscF levels. PA1718 PSCE_PSEAE Type III export protein pscE pscE 67 Pseudomonas secretion protein E MMTALETRLSVADGTHAAALRQRLQAALAECRRELARGACPEHFQFLQQQARALEGGLGILSQLTED