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3.A.1.5.41
Oligopeptide transporter, OppABCDF/MppA/YgiS.  MppA is a murein peptide receptor, and YgiS is a bile acid (e.g., cholate, deoxycholate) receptor that may use the Opp system for uptake.  YgiS mRNA is degraded by the toxin MgsR which is regulated by the antitoxin, MgsA and this loss of the mRNA protects the cell against bile acid stress (Kwan et al. 2015).

Accession Number:P77348
Protein Name:MppA aka B1329
Length:537
Molecular Weight:59900.00
Species:Escherichia coli [83333]
Location1 / Topology2 / Orientation3: Periplasm1
Substrate Oligopeptides

Cross database links:

RefSeq: AP_001957.1    NP_415845.2   
Entrez Gene ID: 945951   
Pfam: PF00496   
BioCyc: EcoCyc:G6665-MONOMER    ECOL168927:B1329-MONOMER   
KEGG: ecj:JW1322    eco:b1329   

Gene Ontology

GO:0042597 C:periplasmic space
GO:0005215 F:transporter activity
GO:0015031 P:protein transport
GO:0042939 P:tripeptide transport

References (4)

[1] “MppA, a periplasmic binding protein essential for import of the bacterial cell wall peptide L-alanyl-gamma-D-glutamyl-meso-diaminopimelate.”  Park J.T.et.al.   9495761
[2] “A 570-kb DNA sequence of the Escherichia coli K-12 genome corresponding to the 28.0-40.1 min region on the linkage map.”  Aiba H.et.al.   9097039
[3] “The complete genome sequence of Escherichia coli K-12.”  Blattner F.R.et.al.   9278503
[4] “Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110.”  Hayashi K.et.al.   16738553
Structure:
3O9P   4TOZ     

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MKHSVSVTCC ALLVSSISLS YAAEVPSGTV LAEKQELVRH IKDEPASLDP AKAVGLPEIQ 
61:	VIRDLFEGLV NQNEKGEIVP GVATQWKSND NRIWTFTLRD NAKWADGTPV TAQDFVYSWQ 
121:	RLVDPKTLSP FAWFAALAGI NNAQAIIDGK ATPDQLGVTA VDAHTLKIQL DKPLPWFVNL 
181:	TANFAFFPVQ KANVESGKEW TKPGNLIGNG AYVLKERVVN EKLVVVPNTH YWDNAKTVLQ 
241:	KVTFLPINQE SAATKRYLAG DIDITESFPK NMYQKLLKDI PGQVYTPPQL GTYYYAFNTQ 
301:	KGPTADQRVR LALSMTIDRR LMTEKVLGTG EKPAWHFTPD VTAGFTPEPS PFEQMSQEEL 
361:	NAQAKTLLSA AGYGPQKPLK LTLLYNTSEN HQKIAIAVAS MWKKNLGVDV KLQNQEWKTY 
421:	IDSRNTGNFD VIRASWVGDY NEPSTFLTLL TSTHSGNISR FNNPAYDKVL AQASTENTVK 
481:	ARNADYNAAE KILMEQAPIA PIYQYTNGRL IKPWLKGYPI NNPEDVAYSR TMYIVKH