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. 2019 May 31;10:1163. doi: 10.3389/fmicb.2019.01163

Table 1.

Functions of type V secretion system passenger domains.

Function Mode of action Example AT-Type References
Enzyme Protease SPATE Group I EspC (Escherichia coli) Va Stein et al., 1996
EspP (Escherichia coli) Roman-Hernandez et al., 2014

Group II Hbp (Escherichia coli) Va Soprova et al., 2010
Pic (Escherichia coli) Abreu et al., 2016

SPATE-like IgA protease (Neisseria gonorrhoeae) Va Hulks and Plaut, 1978; Diebel et al., 2004

Non-SPATE NalP (Neisseria meningitidis) Va Arenas et al., 2013
Ssph1/2 (Serratia marcescens) Ohnishi et al., 1997; Kida et al., 2008
LepA (Pseudomonas aeruginosa) Vb Ohnishi and Horinouchi, 2009

Lipase/esterase EstA (Pseudomonas aeruginosa) Va Wilhelm et al., 2007
McaP (Moraxella catarrhalis) Lipski et al., 2007
EstA (Serratia liquefaciens) Riedel et al., 2003
ApeE (Salmonella Typhimurium) Carinato et al., 1998
PlpD (Pseudomonas aeruginosa) FplA (Fusobacteriumnucleatum) Vd Salacha et al., 2010; Da Mata Madeira et al., 2016
Casasanta et al., 2017

CDI Growth-inhibition of competing bacteria CdiA/B (Enterobacteriaceae) Vb Diner et al., 2012
BcpA/B (Burkholderia pseudomallei) Garcia et al., 2013

Alteration of Host BadA (Bartonella henselae) Vb Riess et al., 2004
Cell Processes InvD (Yersinia pseudotuberculosis) Ve Sadana et al., 2018

Immune evasion Circumventing host immune response IgA protease (Escherichia coli) Va Zinchenko et al., 2018
EtpA (Escherichia coli) Vb Roy et al., 2009
YadA (Yersinia spp.) Vc Schindler et al., 2012
Eib (Escherichia coli) Leo and Goldman, 2009; Leo et al., 2011

Cyto-/Hemolysis VacA (Helicobacterpylori) Va Cover and Blanke, 2005
ShlA (Serratia marcescens) Vb Reboud et al., 2017
ExlA (Pseudomonas aeruginosa) Yang and Braun, 2000

Adhesin Adhesion to surfaces/receptors AIDA-I (Escherichia coli) Va Laarmann and Schmidt, 2003; Charbonneau et al., 2006
EhaA (Escherichia coli)
Pertactin (Bordetella pertussis) Aricò et al., 1993
FHA (Bordetella pertussis) Vb Serra et al., 2011
HMW1/2 (Haemophilus influenzae) Buscher et al., 2006
YadA (Yersinia spp.) Eib (Escherichia coli) Vc Tertti et al., 1992; Mühlenkamp et al., 2017
Leo and Goldman, 2009
Intimin (Escherichia coli) Ve Kenny et al., 1997
InvA (Yersinia spp.) Isberg et al., 2000

Auto-Agglutination and biofilm formation Ag43 (Escherichia coli) Va Sherlock et al., 2006
FHA (Bordetella pertussis) Vb Serra et al., 2011
EtpA (Escherichia coli) Roy et al., 2009
YadA (Yersinia enterocolitica) Vc Trunk et al., 2018
Eib (Escherichia coli) Leo and Goldman, 2009

Intracellular motility Activation of actin polymerases IcsA (Shigella flexneri) Va Goldberg and Theriot, 1995
YapV (Yersinia spp.) Besingi et al., 2013
BimA (Burkholderia spp.) Vc Benanti et al., 2015