Structural highlights
Function
FITB_NEIG1 Toxic component of a toxin-antitoxin (TA) module. Plays a role in the speed with which bacteria traverse human epithelial cells; disruption of the locus increases the speed of trafficking about 2-4-fold. FitAB binds to its own promoter better than FitA alone. The expected nuclease activity was not observed for the FitAB complex, perhaps because FitA (the antitoxin) prevents metal binding and thus catalysis by FitB.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.