Table 1.

Tat signal peptides that promote transport of MBP

Signal peptide†	E. coli HS3018	E. coli HS3018 ΔtatC
AmiA	++	++
AmiC	++	++
CueO	++	−
DmsA	+	−
FdnG	+	−
FdoG	+	−
FhuD	++	++
HyaA	++	−
HybA	+	+
HybO	+	+
NapA	+	−
NapG	+	+
NrfC	+	+
SufI	++	−
TorA (RR)	++	−
TorA (KK)	−	−
TorZ	+	+
WcaM	+	−
YaeI	++	++
YahJ	+	+
YagT	+	−
YcbK	++	−
YcdB	++	−
YdcG	++	++
YdhX	++	−
YedY	+	+
YfhG	+	+
YnfE	++	−
YnfF	+	+

^†expression of each ssTat-MBP construct was from pBAD18-Cm (Tullman-Ercek et al., 2007)

^‡as determined by Tullman-Ercek et al., 2007

++ = bright red colonies; equivalent to malE+ cells streaked on MacConkey maltose agar plates

+ = pale red colonies

− = white colonies

Bold font = Tat specific