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Table 2 Domains that Identify Secretins and Ushers in Shewanella

From: Genome-wide protein localization prediction strategies for gram negative bacteria

Domain

Short Model Descriptor

Secretion System

Proteins Detected

Predicted Localization in Shewanella

pfam02321

Outer membrane efflux protein

T1SS1

AggA

OM

TIGR01844

type I secretion outer membrane protein, TolC family

T1SS

TolC, AggA

OM

TIGR02519

pilus (MSHA type) biogenesis protein MshL

T2bSS

MshL

OM lipoprotein

pfam07655

Secretin N-terminal domain

T2bSS

MshL

OM lipoprotein

TIGR02515

type IV pilus secretin (or competence protein) PilQ

T2bSS

PilQ

OM lipoprotein

pfam00263

Bacterial type II and III secretion system protein

T2a-cSS, T3aSS

GspD, PilQ, MshL, YscC, RcpA, SspD

mixed

pfam03958

Bacterial type II/III secretion system short domain

T2a-bSS, T3aSS

GspD, PilQ, YscC

mixed

pfam02107

Flagellar L-ring protein

T3bSS

FlgH

OM lipoprotein

pfam03524

Conjugal transfer protein

T4bSS

TrbG

OM

pfam03895

YadA-like C-terminal region

T5cSS

 

OM | extra

pfam03797

Autotransporter beta-domain

T5aSS

 

OM | extra

pfam06586

TraK protein

T4bSS

TraK, TrhK

OM

pfam07660

Secretin and TonB N terminus short domain

T2bSS2

PilQ, MshL

OM lipoprotein

TIGR02516

type III secretion outer membrane pore, YscC/HrcC family

T3aSS

YscC

OM

TIGR02756

type-F conjugative transfer system secretin TraK

T4bSS

TraK

OM

TIGR03352

type VI secretion lipoprotein, VC_A0113 family

T6SS

SciN

OM lipoprotein

pfam00577

Fimbrial Usher protein

T7SS

PapC/FimD

OM

pfam03783

Curli production assembly/transport component CsgG

T8SS

CsgG

OM lipoprotein

  1. 1 Also detects OM component of drug and metal efflux pumps
  2. 2 also detects some TonB receptor proteins