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
(Uniprot)
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)
OSMB_ECOLI
P0ADA7
osmB
b1283 JW1275
Osmotically-inducible lipoprotein B
Outer Membrane Lipoprotein
I
N/A
Cell membrane | Lipid-anchor
Outer membrane Lipoprotein (Experimental)
 
 
SEC
 
LOL
no
yes
CYSZ_ECOLI
P0A6J3
cysZ
b2413 JW2406
Protein cysZ
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane | Multi-pass membrane protein
Integral Membrane Protein (Experimental)
 
SRP
YidC
 
 
yes
yes
DSBB_ECOLI
P0A6M2
dsbB

roxB ycgA

b1185 JW5182
Disulfide bond formation protein B (Disulfide oxidoreductase)
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane | Multi-pass membrane protein
Integral Membrane Protein
 
SRP
YidC
 
 
yes
yes
ENO_ECOLI
P0A6P9
eno
b2779 JW2750
Enolase (EC 4.2.1.11) (2-phospho-D-glycerate hydro-lyase) (2-phosphoglycerate dehydratase)
Cytoplasmic, Peripheral inner membrane protein facing the cytoplasm, Peripheral outer membrane protein facing the extra-cellular space
A, F1, F4
Soluble IM Fraction
Cytoplasm -> cytoskeleton | Secreted | Cell surface
Cytoplasmic (Experimental)
 
 
Uknown mechanism
 
 
yes
yes
ECNA_ECOLI
P0ADB4
ecnA
b4410 JW5737
Uncharacterized protein yfeN
Outer Membrane Lipoprotein
I
N/A
Cell membrane | Lipid-anchor
Outer membrane Lipoprotein (Experimental)
 
 
SEC
 
LOL
no
yes
YJJB_ECOLI
P0ADD2
yjjB
b4363 JW4327
UPF0442 protein yjjB (Protein P-14)
Integral Inner Membrane
B
IM (predicted)
Cell membrane | Multi-pass membrane protein
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
YHHN_ECOLI
P0ADI9
yhhN
b3468 JW3433
Uncharacterized membrane protein yhhN
Integral Inner Membrane
B
IM (predicted)
Cell membrane | Multi-pass membrane protein
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
FLGH_ECOLI
P0A6S0
flgH

fla FVIII flaY

b1079 JW5153
Flagellar L-ring protein (Basal body L-ring protein)
Outer Membrane Lipoprotein
I
N/A
Cell outer membrane | Lipid-anchorBacterial flagellum basal body
Outer membrane Lipoprotein (Experimental)
flagellum
 
SEC
 
LOL
yes
yes
FLGI_ECOLI
P0A6S3
flgI

fla FIX flaM

b1080 JW1067
Flagellar P-ring protein (Basal body P-ring protein)
Periplasmic
G
N/A
PeriplasmBacterial flagellum basal body
Periplasmic (Experimental)
flagellum
SRP (exp)
SEC
DSBA
Fla
no
yes
MRAY_ECOLI
P0A6W3
mraY

murX

b0087 JW0085
Phospho-N-acetylmuramoyl-pentapeptide-transferase (EC 2.7.8.13) (UDP-MurNAc-pentapeptide phosphotransferase)
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane | Multi-pass membrane protein
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
KDGT_ECOLI
P0A712
kdgT
b3909 JW5560
2-keto-3-deoxygluconate permease (KDG permease)
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane | Multi-pass membrane protein
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
MSCL_ECOLI
P0A742
mscL

yhdC

b3291 JW3252
Large-conductance mechanosensitive channel
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane | Multi-pass membrane protein
Integral Membrane Protein (Experimental)
 
SRP
YidC
 
 
yes
yes
YHJT_ECOLI
P0ADJ5
yhjT

yhjT

b3537 JW5663
Uncharacterized protein yhjT
Integral Inner Membrane
B
IM (predicted)
 
Membrane anchored
 
SRP
SEC
 
 
no
yes
YIAA_ECOLI
P0ADJ8
yiaA
b3562 JW3534
Inner membrane protein yiaA
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane | Multi-pass membrane protein
Integral Membrane Protein
 
SRP
SEC
 
 
no
yes
YIAW_ECOLI
P0ADK4
yiaW
b3587 JW3559
Inner membrane protein yiaW
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane | Multi-pass membrane protein
Integral Membrane Protein
 
SRP
SEC
 
 
yes
yes
MNTH_ECOLI
P0A769
mntH

yfeP

b2392 JW2388
Manganese transport protein mntH
Integral Inner Membrane
B
IM (predicted)
Cell inner membrane | Multi-pass membrane protein
Integral Membrane Protein (Experimental)
 
SRP
SEC
 
 
yes
yes
GPMB_ECOLI
P0A7A2
gpmB

ytjC

b4395 JW4358
Probable phosphoglycerate mutase gpmB (EC 5.4.2.1) (PGAM) (Phosphoglyceromutase)
Integral Inner Membrane
B
N/A
 
Membrane anchored
 
SRP
SEC
 
 
no
yes
DCTA_ECOLI
P0A830
dctA
b3528 JW3496
Aerobic C4-dicarboxylate transport protein
Integral Inner Membrane
B
IM (predicted), Detected in IM Fraction
Cell inner membrane | Multi-pass membrane protein
Integral Membrane Protein
 
SRP
YidC
 
 
no
yes
TOLB_ECOLI
P0A855
tolB
b0740 JW5100
Protein tolB
Periplasmic
G
Soluble IM Fraction
Periplasm
Periplasmic (Experimental)
 
SECB, SRP
SEC
 
 
no
yes
YICN_ECOLI
P0ADL3
yicN
b3663 JW5637
Uncharacterized protein yicN
Integral Inner Membrane
B
N/A
 
Membrane anchored
 
SRP
SEC
 
 
yes
yes
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