ecce/ outer membrane/by size

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ecce/ outer membrane proteins/ listed by size

---Up to 20 kDa
---20 - 30 kDa
---30 - 40kDa
---40 - 50 kDa
---50 - 60 kDa
---60 - 80 kDa
---80 - 90 kDa
---90 - 100 kDa
---Above 100 kDa

Up to 20 kDa

(b1369) ENTREZ AAC74451

function

hypothetical outer membrane protein

interaction

regulation

5888 Da; 51 aa

Major outer membrane lipoprotein precursor (lpp )

function

interaction

regulation

attached to the membrane by a lipid anchor
3d-structure

8323 Da; 78 aa

Hypothetical 9.5 kD lipoprotein in metC-sufI intergenic region (yqhH )

function

interaction

regulation

attached to the outer membrane by a lipid anchor

9513 Da; 85 aa

(b1966) ENTREZ AAC75032

function

putative outer membrane protein

interaction

regulation

15099 Da; 134 aa

Outer membrane lipoprotein SlyB precursor (slyB )>

function

interaction

regulation

attached to the membrane by a lipid anchor

15602 Da; 155 aa

ENTREZ AAC75056 (b1995)

function

hypothetical outer membrane protein

interaction

regulation

15653 Da; 139 aa

GspH

function

PUTATIVE GENERAL SECRETION PATHWAY PROTEIN H

interaction

regulation

18565 Da; 169 aa

Outer membrane protein X precursor (ompX )

function

interaction

regulation

transmembrane domains: 8 (potential)

18603 Da; 171 aa

Peptidoglycan-associated lipoprotein precursor (pal )

function

strongly associated with the peptidoglycan

interaction

regulation

attached to the membrane by a lipid anchor

18824 Da; 173 aa

Outer membrane lipoprotein Blc precursor (blc )

function

may serve a starvation response

interaction

regulation

attached to the membrane by a lipid anchor

19851 Da; 177 aa

20 - 30 kDa

outer membrane protein Slp precursor (slp )

function

may help to stabilize the outer membrane during carbon starvation and stationary phase

interaction

regulation

induced upon starvation and slowed growth, cAMP/CRP-independent

attached to the membrane by a lipid anchor

20964 Da; 188 aa

yiaD

function

putative lipoprotein IN BISC-CSPA INTERGENIC REGION

interaction

regulation

22169 Da; 219 aa

Hypothetical 22.9 kD Protein in tonB-trpA intergenic region precursor (yciD )

function

interaction

regulation

22928 Da; 212 aa

Flagellar L-ring protein precursor (flgH )

function

part of the basal body of the flagellar organelle

interaction

regulation

attached to the outer membrane by a lipid anchor

24615 Da; 232 aa

Copper homeostasis protein CutF precursor; (LIPOPROTEIN NlpE) (cutF )

function

involved in copper homeostasis, could be involved in both copper efflux and the delivery of copper to copper-dependent enzymes

interaction

cofactors

regulation

attached to the outer membrane by a lipid anchor

25844 Da; 236 aa

Membrane-bound lytic murein Transglycosylase E precursor (mltE )

function

murein-degrading enzyme, may play a role in recycling of muropeptides during cell elongation and/or cell division

interaction

cofactors

regulation

26574 Da; 241 aa

Hypothetical 27.4 kD Protein in avtA-selB intergenic region precursor (yiaT )

function

interaction

cofactors

regulation

27413 Da; 246 aa

Hypothetical 27.8 kD Protein in gapA-rnd intergenic region precursor (yeaF )

function

interaction

regulation

27831 Da; 248 aa

VacJ lipoprotein precursor (vacJ )>

function

interaction

regulation

attached to the membrane by a lipid anchor

attached to the membrane by a lipid anchor
28041 Da; 251 aa

Phosphatidylglycerophosphatase B (pgpB )

function

hydrolyzes phosphatidylglycerophosphate, phosphatidic acid and lysophosphatic acid, the pattern of activities varies according to subcellular location

interaction

cofactors

regulation

integral membrane protein of the inner and the outer membrane

29021 Da; 254 aa

nlpA

function

putative lipoprotein

interaction

regulation

29423 Da; 272 aa

yaeC

function

putative lipoprotein

interaction

regulation

29431 Da; 271 aa

30 - 40 kDa

ENTREZ AAC75397 (b2337)

function

putative outer membrane protein, homologous to PapC/E. coli

interaction

regulation

31643 Da; 298 aa

Phospholipase A1 precursor (pldA )

function

hydrolysis of phosphatidylcholine with phospholipase A2 and phospholipase A1 activities. Required for efficient secretion of bacteriocins, seems to be dormant in normal growing cells

interaction

cofactors

requires calcium ions for activity

regulation

induction: by membrane damaging, e.g. phage-induced lysis or temperature shock

33163 Da; 289 aa

Nucleoside-specific channel-forming protein Tsx precursor (tsx )

function

substrate-specific channel for nucleosides and deoxynucleosides

receptor

for colicin K and bacteriophage T6

interaction

regulation

33589 Da; 294 aa

Outer membrane protein G precursor (ompG )

function

receptor

interaction

regulation

monomer
large channel

34913 Da; 301 aa

Outer membrane protease OmpP precursor (ompP )

function

protease, also acts as receptor for bacteriophage Ox2

interaction

cofactors

regulation

homopentamer

35499 Da; 315 aa

Protease VII Precursor (ompT )

function

cleaves T7 RNA polymerase, ferric enterobactin receptor protein and other proteins, specificity for paired basic residues

interaction

cofactors

regulation

inhibited by zinc ions

homopentamer

35562 Da; 317 aa

Lipoprotein-34 precursor (nlpB )

function

non-essential lipoprotein

interaction

regulation

attached to the membrane by a lipid anchor

&MW

36842 Da; 344 aa

Outer membrane protein A precursor (ompA )

function

required for the actions of colicins K and L and for the stabilization of mating aggregates in conjugation

receptor

for a number of T-even like phages

interaction

regulation

monomer
3d-structure
spans the membrane 8 times

37201 Da; 346 aa

Outer membrane pore protein E precursor (phoE )

function

pore for efficient uptake of inorganic phosphate, phosphorylated compounds and some negatively charged solutes

receptor

interaction

regulation

induced when cells are grown under phosphate limitation

homotrimer
3d-structure
spans the membrane 16 times

38922 Da; 351 aa

Outer membrane protein F precursor (ompF )

function

passive diffusion pore for small molecular weight hydrophilic materials

receptor

for bacteriophage T2

interaction

regulation

homotrimer
3d-structure
spans the membrane 16 times

39333 Da; 362 aa

40 - 50 kDa

Membrane-bound lytic murein Transglycosylase C precursor (mltC )

function

murein-degrading enzyme, may play a role in recycling of muropeptides during cell elongation and/or cell division

interaction

cofactors

regulation

attached to the outer membrane by a lipid anchor (probable)

40112 Da; 359 aa

Membrane-bound lytic murein Transglycosylase B precursor (mltB )

function

murein-degrading enzyme, may play a role in recycling of muropeptides during cell elongation and/or cell division

interaction

cofactors

regulation

attached to the outer membrane by a lipid anchor and exposed to the periplasmic side (probable)

40256 Da; 361 aa

Outer membrane porin protein NmpC precursor (nmpC )

function

interaction

receptor

regulation

in wild-type strains of e.coli K12 the nmpC open reading frame is interrupted by an IS5 insertion and generates a hybrid open reading frame that is not expressed
however in mutant strain CS348 the IS6 element has been deleted ane nmpC is expressed

40316 Da; 344 aa

Outer membrane protein C precursor (ompC )

function

passive diffusion pore for small molecular weight hydrophilic materials

receptor

for bacteriophage ???

interaction

regulation

homotrimer

40368 Da; 367 aa

Membrane-bound lytic murein Transglycosylase A precursor (mltA )

function

murein-degrading enzyme, may play a role in recycling of muropeptides during cell elongation and/or cell division

interaction

cofactors

regulation

optimal activity is between pH 4.0 and 4.5, loses its activity rapidly above 30°C

attached to the outer membrane by a lipid anchor (probable)

40410 Da; 365 aa

ENTREZ AAC76082 (b1377)

function

putative outer membrane protein

interaction

regulation

41220 Da; 377 aa

b1505ENTREZ AAC74578

function

putative outer membrane protein

interaction

regulation

41616 Da; 382 aa

Putative polysaccharide export protein YccZ precursor (yccZ )

function

may be involved in polysaccharide transport

interaction

regulation

41740 Da; 379 aa

Putative polysaccharide export protein Wza precursor (wza )

function

may be involved in polysaccharide transport

receptor

interaction

regulation

41910 Da; 379 aa

Protein transport protein HofQ precursor (hofQ )

function

interaction

cofactors

regulation

44716 Da; 412 aa

Hypothetical 46.1 kD Protein in modC-bioA intergenic region precursor (ybhC )

function

interaction

regulation

attached to the membrane by a lipid anchor

46082 Da; 427 aa

Long-chain fatty acid transport protein precursor (fadL )

function

involved in translocation of long-chain fatty acids across the outer membrane

receptor

for bacteriophage T2

interaction

regulation

induction by long-chain fatty acids, expression of fadL is under control of FadR repressor

48857 Da; 448 aa

Membrane-bound lytic murein Transglycosylase D precursor (mltD )

function

murein-degrading enzyme, may play a role in recycling of muropeptides during cell elongation and/or cell division

interaction

cofactors

regulation

optimal activity is between pH 4.0 and 4.5, loses its activity rapidly above 30°C

attached to the outer membrane by a lipid anchor (probable)

49417 Da; 452 aa

Maltoporin precursor (lamB )

function

involved in the transport of maltose, maltodextrines and trehalose

interaction

receptor

for several bacteriophages including lambda and Tp1

regulation

MalT dependent, inducer is maltotriose

structure

homotrimer
3d-structure
spans the membrane 18 times

49912 Da; 446 aa

50 - 60 kDa

ylcB (o457)ENTREZ AAC73673

function

putative resistance protein

interaction

regulation

50270 Da; 457 aa

YjcP

function

HYPOTHETICAL 53.4 KDA PROTEIN IN FDHF-ALSK INTERGENIC REGION; similar toPseudomonas cepacia fusaric acid resistance protein FusA

interaction

regulation

77261 Da; 700 aa

Outer membrane protein TolC precursor (tolC )

function

outer membrane component of several efflux pumps (Acr, Emr, Col, Hly). Involved in multiple drug, detergent and dye resistance. Also involved in extracellular secretion of virulence factors, toxins and colicins.

receptor

Phage U3

interaction

with efflux pumps

regulation

structure

3d-structure
homotrimer
each monomer spans the membrane 4 times
has large helical periplasmic domains

54014 Da; 495 aa

60 - 80 kDa

ytfM

function

HYPOTHETICAL 64.8 KDA PROTEIN IN MSRA-CHPBI INTERGENIC REGION

interaction

regulation

64796 Da; 577 aa

Vitamin B₁₂ receptor precursor (btuB )

function

receptor for cobalmin and bacteriophage Bf23, necesarry for the uptake of E colicins

interaction

receptor

for cobalmin and bacteriophage Bf23

regulation

68407 Da; 614 aa

Probable general secretion pathway protein D precursor (gspD )

function

involved in a general secretion pathway for the export of proteins

interaction

cofactors

regulation

71146 Da; 654 aa

Colicin I receptor precursor (cirA )

function

not yet known, postulated to participate in iron transport

interaction

receptor

for colicins IA and IB

regulation

induction: by iron and by cAMP/cAMP-receptor protein complex

73895 Da; 663 aa

b1451ENTREZ AAC74533

function

putative outer membrane receptor for iron transport

interaction

regulation

77261 Da; 700 aa

80 - 90 kDa

Outer membrane receptor for Fe^III-coprogen, Fe^III-ferrioxamine B and Fe^III-rhodotorulic acid (fhuE )

function

required for the uptake of iron^III via coprogen, ferrioxamine B and rhodotorulic acid

interaction

receptor

for ferric-rhodotorulic acid

regulation

for induction, the TonB and the ExbB protein have to be active

81232 Da; 729 aa

f955ENTREZ AAC73892

function

putative outer membrane receptor for iron transport

interaction

regulation

81960 Da; 760 aa

Ferrienterobactin receptor precursor (fepA )

function

involved in the initial step in iron uptake by binding ferrienterobactin

interaction

receptors

for colicins B and D

regulation

monomer
3d-structure
spans the membrane 22 times

82107 Da; 746 aa

Ferrichrome-iron receptor precursor (fhuA )

function

binds the ferrichrome-iron ligand

interaction

with TonB
binding of bacteriophage T5 triggers the opening of a high conductance ion channel

receptor

for bacteriophages T5, T1, PHI80 and for colicin M

regulation

monomer
3d-structure
spans the membrane 22 times

82182 Da; 747 aa

Iron^III dicitrate transport protein FecA precursor (fecA )

function

receptor

for iron^III dicitrate

interaction

for induction TonB and ExbB have to be active

regulation

by the iron level mediated by the Fur protein

85321 Da; 774 aa

Hypothetical outer membrane usher protein in gltF-nanT intergenic region precursor (yhcD )

function

could be involved in the export and assembly of a fimbrial subunit across the outer membrane

interaction

regulation

86289 Da; 793 aa

Organic Solvents Tolerance Protein precursor (ostA )

function

determines n-hexane tolerance, involved in OM permeability

interaction

regulation

89671 Da; 784 aa

90 - 100 kDa

Outer membrane usher protein CssD precursor (Csd2) (cssD )

function

involved in the export and assembly of C6 fimbrial subunits across the outer membrane

interaction

regulation

90393 Da; 802 aa

Unknown protein/Surface antigen D15 family (yaeT )

function

interaction

regulation

90552; 810 aa

yqiG ENTREZ AAC76082

function

putative outer membrane protein

interaction

regulation

90553 Da; 821 aa

Hypothetical outer membrane usher protein in nei-gltA intergenic region precursor (ybgQ )

function

could be involved in the export and assembly of the putative YbgD fimbrial subunit across the outer membrane

interaction

regulation

90443 Da; 818 aa

Outer membrane usher protein PapC (papC )

function

involved in the export and assembly of PapA fimbrial subunits across the outer membrane
appears to form a channel in the outer membrane through wich pilin subunits are transported to the surface

interaction

regulation

91076 Da; 836 aa

Hypothetical 91.2 kD Protein in rplY-narP intergenic region precursor (yejO )

function

interaction

regulation

91202 Da; 863 aa

Hypothetical outer membrane usher protein in ribB-glgS intergenic region precursor (yqiG )

function

could be involved in the export and assembly of a fimbrial subunit across the outer membrane

interaction

regulation

91886 Da; 821 aa

Hypothetical 92.2 kD Protein in phoH-csgG intergenic region precursor (ycdS )

function

interaction

regulation

92207 Da; 807 aa

Hypothetical outer membrane usher protein in gatY-mrp intergenic region precursor (yehB )

function

could be involved in the export and assembly of a fimbrial subunit across the outer membrane

interaction

regulation

92282 Da; 826 aa

Outer membrane usher protein CssD precursor (Csd1) (cssD )

function

involved in the export and assembly of C6 fimbrial subunits across the outer membrane

interaction

regulation

92378 Da; 819 aa

Outer membrane usher protein FasD precursor (fasD )

function

involved in the export and assembly of 987P fimbrial subunits across the outer membrane

interaction

regulation

92354 Da; 835 aa

Hypothetical outer membrane usher protein in agaL-mtr intergenic region precursor (yraJ )

function

could be involved in the export and assembly of the putative YraH fimbrial subunit across the outer membrane

interaction

regulation

93616 Da; 838 aa

Hypothetical outer membrane usher protein in pepN-pyrD intergenic region precursor (ycbS )

function

could be involved in the export and assembly of the putative YcbQ fimbrial subunit across the outer membrane

interaction

regulation

95241 Da; 866 aa

Outer membrane usher protein HtrE precursor (htrE )

function

probable porin-like protein necessary for the assembly of a pilin-like protein

interaction

regulation

induced by heat shock

95499 Da; 865 aa

Outer membrane usher protein SfmD precursor (sfmD )

function

involved in the export and assembly of SfmA fimbrial subunits across the outer membrane

interaction

regulation

95677 Da; 867 aa

Outer membrane usher protein FocD (focD )

function

involved in the export and assembly of F1C fimbrial subunits across the outer membrane

interaction

regulation

96210 Da; 875 aa

Outer membrane usher protein FimD precursor (fimD )

function

involved in the export and assembly of FimA fimbrial subunits across the outer membrane

interaction

regulation

96482 Da; 878 aa

Hypothetical outer membrane usher protein in aroC-fadL intergenic region precursor (yfcU )

function

could be involved in the export and assembly of a fimbrial subunit across the outer membrane

interaction

regulation

97437 Da; 881 aa

f955ENTREZ AAC74286

function

putative adhesion and penetration protein

interaction

regulation

99685 Da; 955 aa

Above 100 kDa

Intimin (Eae2) (eaeA )

function

necessary for the production of attaching and effacing lesions on tissue culture cells, believed to mediate adherence

interaction

regulation

102014 Da; 934 aa

Intimin (Eae1) (eaeA )

function

necessary for the production of attaching and effacing lesions on tissue culture cells, believed to mediate adherence

interaction

regulation

102410 Da; 939 aa

Antigen 43 precursor (flu )

function

controls colony form variation and autoaggregation

interaction

regulation

outer membrane associated BR>consists of two subunits (alpha and beta)

106841 Da; 1039 aa

Bacteriophage N4 adsorption protein A precursor (nrfA )

function

required for bacteriophage N4 adsorption, serves as phage receptor

interaction

regulation

111307 Da; 990 aa

fluENTREZ AAC75061

function

outer membrane fluffing protein, similar to adhesin

interaction

regulation

112778 Da; 1091 aa

Hypothetical 98.4 kD Protein in alpA-gabD intergenic region precursor (ypjA )

function

interaction

regulation

162774 Da; 1569 aa