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1.B.35.2.2
OmpL porin. Nearly identical to Salmonella typhimurium YshA which appears to be a 10 β-stranded transmembrane β-barrel which forms a pore with a radius of 0.7nm (Freeman et al., 2011). May be an oligogalacturonate-specific porin (Shevchik and Hugouvieux-Cotte-Pattat, 2003).

Accession Number:P76773
Protein Name:OmpL aka YSHA aka B3875
Length:230
Molecular Weight:27200.00
Species:Escherichia coli [83333]
Number of TMSs:1
Location1 / Topology2 / Orientation3: Cell outer membrane1
Substrate Oligogalacturonate

Cross database links:

Genevestigator: P76773
EchoBASE: EB3156
EcoGene: EG13374
eggNOG: NOG10925
HEGENOM: HBG416663
RefSeq: AP_003933.1    NP_418311.1   
Entrez Gene ID: 948366   
Pfam: PF06178   
BioCyc: EcoCyc:G7814-MONOMER    ECOL168927:B3875-MONOMER   
KEGG: ecj:JW3846    eco:b3875   

Gene Ontology

GO:0009279 C:cell outer membrane
GO:0005886 C:plasma membrane
GO:0046930 C:pore complex
GO:0008643 P:carbohydrate transport
GO:0006811 P:ion transport

References (5)

[1] “Analysis of the Escherichia coli genome. III. DNA sequence of the region from 87.2 to 89.2 minutes.”  Plunkett G. IIIet.al.   8346018
[2] “The complete genome sequence of Escherichia coli K-12.”  Blattner F.R.et.al.   9278503
[3] “Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110.”  Hayashi K.et.al.   16738553
[4] “Protein folding in the periplasm in the absence of primary oxidant DsbA: modulation of redox potential in periplasmic space via OmpL porin.”  Dartigalongue C.et.al.   11080145
[5] “The OmpL porin does not modulate redox potential in the periplasmic space of Escherichia coli.”  Sardesai A.A.et.al.   12660153

External Searches:

  • Search: DB with
  • BLAST ExPASy (Swiss Institute of Bioinformatics (SIB) BLAST)
  • CDD Search (Conserved Domain Database)
  • Search COGs (Clusters of Orthologous Groups of proteins)
  • 2° Structure (Network Protein Sequence Analysis)

Analyze:

Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MKKINAIILL SSLTSASVFA GAYVENREAY NLASDQGEVM LRVGYNFDMG AGIMLTNTYN 
61:	FQREDELKHG YNEIEGWYPL FKPTDKLTIQ PGGLINDKSI GSGGAVYLDV NYKFVPWFNL 
121:	TVRNRYNHNN YSSTDLSGEL DNNDTYEIGT YWNFKITDKF SYTFEPHYFM RVNDFNSSNG 
181:	KDHHWEITNT FRYRINEHWL PYFELRWLDR NVEPYHREQN QIRIGTKYFF