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)
OMPC_ECOLI
P06996
ompC

meoA par

b2215 JW2203
OM b-barrel protein (SEC through IM, inserted in OM by BAM), OmpC
Outer Membrane b-barrel protein
H
Soluble IM Fraction
Cell outer membrane; Multi-pass membrane protein
Outer Membrane ??-barrel protein (Experimental)
 
TF
SEC
SKP
BAM
yes
yes
EXBD_ECOLI
P0ABV2
exbD
b3005 JW2973
integral IM protein (SEC in IM), Biopolymer transport ExbD
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane; Single-pass type II membrane protein
Membrane anchored
 
SRP
SEC
 
 
yes
yes
TOLR_ECOLI
P0ABV6
tolR
b0738 JW0728
integral IM protein (SEC in IM), Tol-Pal system TolR
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane
Membrane anchored (Experimental)
 
SRP
SEC
 
 
yes
yes
PNTA_ECOLI
P07001
pntA
b1603 JW1595
integral IM protein (SEC in IM), PntA
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane; Multi-pass membrane protein
Integral Membrane Protein (Experimental)
 
SRP
SEC
 
 
yes
yes
MCP2_ECOLI
P07017
tar

cheM

b1886 JW1875
integral IM protein (SEC in IM), Methyl-accepting chemotaxis II Tar
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane
Integral Membrane Protein (Experimental)
 
SRP
SEC
 
 
yes
yes
MCP4_ECOLI
P07018
tap
b1885 JW1874
integral IM protein (SEC in IM), Methyl-accepting chemotaxis IV Tap
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane
Integral Membrane Protein
 
SRP
SEC
 
 
no
yes
YFIB_ECOLI
P07021
yfiB
b2605 JW2586
OM lipoprotein (SEC through IM), inserted in OM by LOL), Putative YfiB
Outer Membrane Lipoprotein
I
N/A
Cell membrane
Outer membrane Lipoprotein (Experimental)
 
 
SEC
 
LOL
yes
yes
FLIL_ECOLI
P0ABX8
fliL

cheC1 fla AI fla QI

b1944 JW1928
integral IM protein (SEC in IM), FliL
Integral Inner Membrane
B
Soluble IM Fraction
Cell inner membrane
Outer membrane Lipoprotein
 
SRP
SEC
 
 
no
yes
FLIQ_ECOLI
P0AC07
fliQ

flaQ

b1949 JW1933
Flagellar integral IM protein (SEC in IM), biosynthetic FliQ
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane
Integral Membrane Protein
flagellum
SRP
SEC
 
 
no
yes
HOKC_ECOLI
P0ACG4
hokC

gef

b4412 JW5002 b0018.1
periplasmic protein (SEC through IM), Toxic HokC
Periplasmic
G
N/A
Cell inner membrane
Periplasmic
 
 
SEC
 
 
no
yes
USHA_ECOLI
P07024
ushA
b0480 JW0469
periplasmic protein (SEC through IM), UshA
Periplasmic
G
Soluble IM Fraction
Periplasm
Periplasmic (Experimental)
 
 
SEC
 
 
no
yes
PPA_ECOLI
P07102
appA
b0980 JW0963
periplasmic protein (SEC through IM), AppA
Periplasmic
G
N/A
Periplasm
Periplasmic (Experimental)
 
 
SEC
DSBC
 
yes
yes
PUTP_ECOLI
P07117
putP
b1015 JW1001
integral IM protein (SEC in IM), Sodium/proline symporter PutP
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane
Integral Membrane Protein (Experimental)
 
SRP
SEC
 
 
yes
yes
PSTA_ECOLI
P07654
pstA

phoT

b3726 JW3704
integral IM protein (SEC in IM), Phosphate transport system permease PstA
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
HOKD_ECOLI
P0ACG6
hokD

relF

b1562 JW1554
periplasmic protein (SEC through IM), Toxic HokD
Periplasmic
G
N/A
Cell inner membrane
Periplasmic
 
 
SEC
 
 
no
no
YDBJ_ECOLI
P0ACW2
ydbJ
b4529 JW5215
OM lipoprotein (SEC through IM, inserted in OM by LOL), YdbJ
Outer Membrane Lipoprotein
I
N/A
 
Outer membrane Lipoprotein
 
 
SEC
 
LOL
no
yes
YDCA_ECOLI
P0ACW4
ydcA
b1419 JW1416
periplasmic protein (SEC through IM), YdcA
Periplasmic
G
N/A
 
Periplasmic
 
 
SEC
 
 
no
yes
FHUD_ECOLI
P07822
fhuD
b0152 JW0148
periplasmic protein (TAT-SEC through IM), Iron(3+)-hydroxamate-binding FhuD
Periplasmic
G
N/A
Periplasm
Periplasmic (Experimental)
 
 
TAT,SEC
 
 
yes
yes
FIMF_ECOLI
P08189
fimF
b4318 JW4281
Fimbrial extra-cellular peripheral OM protein (SEC through IM, chaperone usher export system over OM), FimF
Peripheral outer membrane protein facing the extra-cellular space
F4
N/A
Fimbrium
Cell surface appendage (Experimental)
fimbriae
 
SEC
 
CU
no
yes
FIMG_ECOLI
P08190
fimG
b4319 JW4282
Fimbrial extra-cellular peripheral OM protein (SEC through IM, chaperone usher export system over OM), FimG
Peripheral outer membrane protein facing the extra-cellular space
F4
N/A
Fimbrium
Cell surface appendage (Experimental)
fimbriae
 
SEC
 
CU
no
yes
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