STEPdb: Sub-cellular Topologies of E.coli Polypeptides.

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E.coli K-12 (MG1655) Exportome

(mouse over and click on the one letter topology symbols to see which proteins of this specific subproteome are localized in each location)

Bacterial cell cartoon of sub-cellular locations


Protein ID
(Uniprot)
Accession
(Uniprot)
Gene Name
(Uniprot)
Order
Locus Name
Protein Name
(STEPdb)
Full Name
Symbol
Uniprot
EchoLOCATION
Extracellular Appendage
First Level
Targeting
Chaperoning
First Level
Secretion
System
Second Level
Targeting
Chaperoning
Second Level
Secretion
System
K-12 Core
Proteome
(yes/no)
K-12 Basic
Proteome
(yes/no)
BAMC_ECOLI
P0A903
bamC

dapX nlpB

b2477 JW2462
OM lipoprotein (SEC through IM, inserted in OM by LOL), assembly factor BamC
Outer Membrane Lipoprotein
I
Soluble IM Fraction
Cell outer membrane
Outer membrane Lipoprotein (Experimental)
 
 
SEC
 
LOL
yes
yes
LDRA_ECOLI
P0DPD0
ldrA
b4419 JW5957
integral IM protein (SEC in IM), Small toxic polypeptide LdrA
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane
Cytoplasmic
 
SRP
SEC
 
 
yes
yes
LDRC_ECOLI
P0DPD1
ldrC
b4423 JW5959
integral IM protein (SEC in IM), Small toxic polypeptide LdrC
Integral Inner Membrane
B
N/A
Cell inner membrane
-
 
 
SEC
 
 
 
 
YIAB_ECOLI
P11286
yiaB
b3563 JW5654
integral IM protein (SEC in IM), YiaB
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane; Multi-pass membrane protein
Integral Membrane Protein
 
SRP
SEC
 
 
no
yes
YFIL_ECOLI
P11289
yfiL
b2602 JW5412
OM lipoprotein (SEC through IM, inserted in OM by LOL), YfiL
Outer Membrane Lipoprotein
I
N/A
 
Outer membrane Lipoprotein (Experimental)
 
 
SEC
 
LOL
yes
yes
SLYB_ECOLI
P0A905
slyB
b1641 JW1633
OM lipoprotein (SEC through IM, inserted in OM by LOL), SlyB
Outer Membrane Lipoprotein
I
Soluble IM Fraction
Cell outer membrane
Outer membrane Lipoprotein (Experimental)
 
 
SEC
 
LOL
yes
yes
MIPA_ECOLI
P0A908
mipA

yeaF

b1782 JW1771
OM b-barrel protein (SEC through IM, inserted in OM by BAM), MltA-interacting protein MipA
Outer Membrane b-barrel protein
H
N/A
Cell outer membrane
Outer Membrane ??-barrel protein (Experimental)
 
 
SEC
 
BAM
yes
yes
OMPA_ECOLI
P0A910
ompA

con tolG tut

b0957 JW0940
OM b-barrel protein (SEC through IM, inserted in OM by BAM), OmpA
Outer Membrane b-barrel protein
H
Soluble IM Fraction
Cell outer membrane
Outer Membrane ??-barrel protein (Experimental)
 
TF
SEC
SKP,SURA,DEGP,DSBA
BAM
yes
yes
YJJA_ECOLI
P18390
yjjA
b4360 JW5795
periplasmic protein (SEC through IM), YjjA
Periplasmic
G
N/A
 
Periplasmic
 
 
SEC
 
 
yes
yes
FLIO_ECOLI
P22586
fliO

flaP flbD

b1947 JW5316
Flagellar integral IM protein (SEC in IM), FliO
Integral Inner Membrane
B
IM (predicted)
Cell membrane
Membrane anchored
flagellum
SRP
SEC
 
 
no
yes
APPX_ECOLI
P24244
appX

yccB

b4592 JW0961.1 b0979.1
integral IM protein (SEC in IM), Putative cytochrome bd-II ubiquinol oxidase subunit AppX
Integral Inner Membrane
B
N/A
Cell inner membrane
Integral Membrane Protein
 
SRP
SEC
 
 
no
yes
PAL_ECOLI
P0A912
pal

excC

b0741 JW0731
OM lipoprotein (SEC through IM), inserted in OM by LOL), PG-associated Pal
Outer Membrane Lipoprotein
I
Soluble IM Fraction
Cell outer membrane
Outer membrane Lipoprotein (Experimental)
 
 
SEC
 
LOL
yes
yes
OMPW_ECOLI
P0A915
ompW

yciD

b1256 JW1248
OM b-barrel protein (SEC through IM, inserted in OM by BAM), OmpW
Outer Membrane b-barrel protein
H
N/A
Cell outer membrane
Outer Membrane ??-barrel protein (Experimental)
 
 
SEC
 
BAM
yes
yes
OMPX_ECOLI
P0A917
ompX

ybiG

b0814 JW0799
OM b-barrel protein (SEC through IM, inserted in OM by BAM), OmpX
Outer Membrane b-barrel protein
H
Soluble IM Fraction
Cell outer membrane; Multi-pass membrane protein
Outer Membrane ??-barrel protein (Experimental)
 
SECB,TF
SEC
SURA,SKP
BAM
yes
yes
PA1_ECOLI
P0A921
pldA
b3821 JW3794
OM b-barrel protein (SEC through IM, inserted in OM by BAM), Phospholipase A1 PldA
Outer Membrane b-barrel protein
H
N/A
Cell outer membrane
Outer Membrane ??-barrel protein (Experimental)
 
 
SEC
SKP
BAM
yes
yes
YIGF_ECOLI
P27842
yigF
b3817 JW3790
integral IM protein (SEC in IM), YigF
Integral Inner Membrane
B
IM (predicted)
 
Integral Membrane Protein
 
SRP
SEC
 
 
no
yes
YIGG_ECOLI
P27843
yigG
b3818 JW5590
integral IM protein (SEC in IM), YigG
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane
Integral Membrane Protein
 
SRP
SEC
 
 
no
yes
PGPB_ECOLI
P0A924
pgpB
b1278 JW1270
integral IM protein (SEC in IM), Phosphatidylglycerophosphatase B PgpB
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
TSX_ECOLI
P0A927
tsx

nupA

b0411 JW0401
OM b-barrel protein (SEC through IM, inserted in OM by BAM), Nucleoside-specific channel-forming Tsx
Outer Membrane b-barrel protein
H
Soluble IM Fraction
Cell outer membrane
Outer Membrane ??-barrel protein (Experimental)
 
 
SEC
 
BAM
yes
no
WZA_ECOLI
P0A930
wza
b2062 JW2047
OM lipoprotein & extra-cellular peripheral OM protein (SEC through IM), inserted in OM by LOL), Putative polysaccharide export Wza
Outer Membrane Lipoprotein, Peripheral outer membrane protein facing the extra-cellular space
I, F4
N/A
Cell outer membrane
Outer membrane Lipoprotein (Experimental)
 
 
SEC
 
LOL
yes
yes
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 ©2017 Copyright KU Leuven and FORTH/ICE-HT. Last Update: February 2019.