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)
YAIY_ECOLI
P0AAP7
yaiY
b0379 JW0370
integral IM protein (SEC in IM), YaiY
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane; Multi-pass membrane protein
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
YAIZ_ECOLI
P0AAQ0
yaiZ
b0380 JW5053
integral IM protein (SEC in IM), YaiZ
Integral Inner Membrane
B
IM (predicted)
Cell membrane
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
YBAN_ECOLI
P0AAR5
ybaN
b0468 JW0457
integral IM protein (SEC in IM), YbaN
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane; Multi-pass membrane protein
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
LAMB_ECOLI
P02943
lamB

malB

b4036 JW3996
OM b-barrel protein (SEC through IM, inserted in OM by BAM), Maltoporin LamB
Outer Membrane b-barrel protein
H
Soluble IM Fraction
Cell outer membrane
Outer Membrane ??-barrel protein (Experimental)
 
 
SEC
SKP,SURA,DEGP
BAM
yes
yes
KEFC_ECOLI
P03819
kefC

trkC

b0047 JW0046
integral IM protein (SEC in IM), Glutathione-regulated potassium-efflux system KefC
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
MALM_ECOLI
P03841
malM

molA

b4037 JW3997
periplasmic protein (SEC through IM), Maltose operon periplasmic protein MalM
Periplasmic
G
N/A
Periplasm
Periplasmic (Experimental)
 
 
SEC
 
 
yes
yes
KDPA_ECOLI
P03959
kdpA
b0698 JW0686
integral IM protein (SEC in IM), Potassium-transporting ATPase potassium-binding subunit KdpA
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane
Integral Membrane Protein
 
SRP
SEC
 
 
no
yes
YBAV_ECOLI
P0AAR8
ybaV
b0442 JW0432
periplasmic protein (SEC through IM), YbaV
Periplasmic
G
N/A
 
Periplasmic
 
 
SEC
 
 
yes
yes
YLAC_ECOLI
P0AAS0
ylaC
b0458 JW5063
integral IM protein (SEC in IM), YlaC
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane; Multi-pass membrane protein
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
KDPB_ECOLI
P03960
kdpB
b0697 JW0685
integral IM protein (SEC in IM), Potassium-transporting ATPase ATP-binding subunit KdpB
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
KDPC_ECOLI
P03961
kdpC
b0696 JW0684
integral IM protein (SEC in IM), Potassium-transporting ATPase KdpC subunit KdpC
Integral Inner Membrane
B
N/A
Cell inner membrane
Membrane anchored
 
SRP
SEC
 
 
no
yes
FIMA1_ECOLI
P04128
fimA

pilA

b4314 JW4277
Fimbrial extra-cellular peripheral OM protein (SEC through IM, chaperone usher export system over OM), Type-1 protein, A chain FimA
Peripheral outer membrane protein facing the extra-cellular space
F4
N/A
Fimbrium
Cell surface appendage (Experimental)
fimbriae
 
SEC
 
CU
yes
yes
LIVK_ECOLI
P04816
livK
b3458 JW3423
periplasmic protein (SEC through IM), Leucine-specific-binding LivK
Periplasmic
G
N/A
Periplasm
Periplasmic (Experimental)
 
 
SEC
DSBA
 
yes
yes
YBFA_ECOLI
P0AAU2
ybfA
b0699 JW0688
integral IM protein (SEC in IM), YbfA
Integral Inner Membrane
B
IM (predicted)
 
Membrane anchored
 
SRP
SEC
 
 
no
yes
YBFB_ECOLI
P0AAU5
ybfB
b0702 JW0691
integral IM protein (SEC in IM), YbfB
Integral Inner Membrane
B
IM (predicted)
Cell membrane
Integral Membrane Protein
 
SRP
SEC
 
 
no
yes
YBGE_ECOLI
P0AAV0
ybgE
b0735 JW0725
integral IM protein (SEC in IM), YbgE
Integral Inner Membrane
B
IM (predicted)
 
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
YBGS_ECOLI
P0AAV6
ybgS
b0753 JW0736
periplasmic protein (SEC through IM), YbgS
Periplasmic
G
N/A
 
Periplasmic
 
 
SEC
 
 
yes
yes
NLPA_ECOLI
P04846
nlpA
b3661 JW3635
IM lipoprotein (SEC through IM, inserted in OM by LOL), NlpA
Inner Membrane Lipoprotein
E
Soluble IM Fraction
Cell inner membrane; Lipid-anchor
Inner membrane lipoprotein
 
 
SEC
 
LOL
yes
yes
FLIC_ECOLI
P04949
fliC

flaF hag

b1923 JW1908
Flagellar extra-cellular peripheral OM protein (Flagellum secreted), Flagellin FliC
Peripheral outer membrane protein facing the extra-cellular space
F4
Soluble IM Fraction
Secreted Bacterial flagellum
Cell surface appendage (Experimental)
flagellum
 
Flagellum
 
Fla
no
yes
PTRA_ECOLI
P05458
ptrA

ptr

b2821 JW2789
periplasmic protein (SEC through IM), Protease 3 PtrA
Periplasmic
G
N/A
Periplasm
Periplasmic(experimental)
 
 
SEC
SURA
 
yes
yes
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