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)
PBPA_ECOLI
P02918
mrcA

ponA

b3396 JW3359
integral IM protein (SEC in IM), Penicillin-binding 1A MrcA
Integral Inner Membrane
B
Soluble IM Fraction
Cell inner membrane
Membrane anchored (Experimental)
 
SRP
SEC
 
 
yes
yes
USPB_ECOLI
P0A8S5
uspB

yhiO

b3494 JW3461
integral IM protein (SEC in IM), Universal stress B UspB
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane; Multi-pass membrane protein
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
FLIE_ECOLI
P0A8T5
fliE

fla AI flaN

b1937 JW1921
Flagellar periplasmic peripheral IM protein (Flagellum secreted through IM), hook-basal body complex FliE
Peripheral inner membrane protein facing the periplasm
F2
N/A
Bacterial flagellum basal body
Cytoplasmic
flagellum
 
Flagellum
 
 
no
yes
PBPB_ECOLI
P02919
mrcB

pbpF ponB

b0149 JW0145
integral IM protein (SEC in IM), Penicillin-binding 1B MrcB
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
LACY_ECOLI
P02920
lacY
b0343 JW0334
integral IM protein (SEC in IM), Lactose permease LacY
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
MELB_ECOLI
P02921
melB

mel-4

b4120 JW4081
integral IM protein (SEC in IM), Melibiose carrier MelB
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane
Integral Membrane Protein
 
SRP
SEC
 
 
no
yes
YCCT_ECOLI
P0A8X4
yccT
b0964 JW0947
periplasmic protein (SEC through IM), UPF0319 YccT
Periplasmic
G
N/A
 
Periplasmic
 
 
SEC
 
 
yes
yes
ESSD_ECOLI
P0A9R2
essD

ybcR

b0554 JW0543
integral IM protein (SEC in IM), Prophage lysis S homolog EssD
Integral Inner Membrane
B
IM (predicted)
 
Integral Membrane Protein
 
SRP
SEC
 
 
yes
no
YOBA_ECOLI
P0AA57
yobA
b1841 JW1830
periplasmic protein (SEC through IM), YobA
Periplasmic
G
N/A
Periplasm
Periplasmic
 
 
SEC
 
 
yes
yes
ARAF_ECOLI
P02924
araF
b1901 JW1889
periplasmic protein (SEC through IM), L-arabinose-binding periplasmic AraF
Periplasmic
G
N/A
Periplasm
Periplasmic (Experimental)
 
 
SEC
 
 
yes
yes
RBSB_ECOLI
P02925
rbsB

prlB rbsP

b3751 JW3730
periplasmic protein (SEC through IM), Ribose import binding RbsB
Periplasmic
G
Soluble IM Fraction
Periplasm
Periplasmic (Experimental)
 
 
SEC
SKP
 
no
yes
TONB_ECOLI
P02929
tonB

exbA

b1252 JW5195
integral IM protein (SEC in IM), TonB
Integral Inner Membrane
B
N/A
Cell inner membrane; Single-pass membrane protein; Periplasmic side
Membrane anchored
 
 
SEC
 
 
yes
yes
TOLC_ECOLI
P02930
tolC

colE1-i mtcB mukA refI

b3035 JW5503
OM b-barrel protein (SEC through IM, inserted in OM by BAM), TolC
Outer Membrane b-barrel protein
H
Soluble IM Fraction
Cell outer membrane
Outer Membrane ??-barrel protein (Experimental)
 
SECB
SEC
SKP
BAM
yes
yes
YACC_ECOLI
P0AA95
yacC
b0122 JW0118
periplasmic protein (SEC through IM), YacC
Periplasmic
G
N/A
 
Periplasmic
 
 
SEC
 
 
yes
yes
YMCE_ECOLI
P0AAA5
ymcE

sfa

b0991 JW0975
integral IM protein (SEC in IM), YmcE
Integral Inner Membrane
B
N/A
Cell membrane
Membrane anchored
 
SRP
SEC
 
 
no
yes
ZRAP_ECOLI
P0AAA9
zraP

yjaI zra

b4002 JW5546
periplasmic protein (SEC through IM), Zinc resistance-associated protein ZraP
Periplasmic
G
N/A
Periplasm
Periplasmic (Experimental)
 
 
SEC
 
 
yes
yes
OMPF_ECOLI
P02931
ompF

cmlB coa cry tolF

b0929 JW0912
OM b-barrel protein (SEC through IM, inserted in OM by BAM), OmpF
Outer Membrane b-barrel protein
H
Soluble IM Fraction
Cell outer membrane
Outer Membrane ??-barrel protein (Experimental)
 
TF
SEC
SKP,SURA
BAM
yes
yes
PHOE_ECOLI
P02932
phoE

ompE

b0241 JW0231
OM b-barrel protein (SEC through IM, inserted in OM by BAM), PhoE
Outer Membrane b-barrel protein
H
N/A
Cell outer membrane; Multi-pass membrane protein
Outer Membrane ??-barrel protein (Experimental)
 
 
SEC
 
BAM
yes
yes
MCP1_ECOLI
P02942
tsr

cheD

b4355 JW4318
integral IM protein (SEC in IM), Methyl-accepting chemotaxis I Tsr
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane
Integral Membrane Protein
 
SRP
SEC
 
 
no
yes
YKGJ_ECOLI
P0AAL9
ykgJ
b0288 JW0282
periplasmic protein (SEC through IM), YkgJ
Periplasmic
G
N/A
 
Periplasmic
 
 
SEC
 
 
no
yes
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