TCDB is operated by the Saier Lab Bioinformatics Group
« See all members of the family


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). oppA translation is activated by MicF through a mechanism of action involving facilitated access to a translation-enhancing region in oppA 5'UTR.  MicF activation of oppA translation depends on cross-regulation by negative trans-acting effectors, the GcvB sRNA and the RNA chaperone protein Hfq (Carrier et al. 2023).

Accession Number:P0AFH6
Protein Name:Oligopeptide transport system permease protein OppC
Length:302
Molecular Weight:33022.00
Species:Escherichia coli (strain K12) [83333]
Number of TMSs:6
Location1 / Topology2 / Orientation3: Cell inner membrane1 / Multi-pass membrane protein2
Substrate oligopeptide

Cross database links:

External Searches:

Analyze:

Predict TMSs (Predict number of transmembrane segments)
Window Size: Angle:  
FASTA formatted sequence
1:	MMLSKKNSET LENFSEKLEV EGRSLWQDAR RRFMHNRAAV ASLIVLVLIA LFVILAPMLS 
61:	QFAYDDTDWA MMSSAPDMES GHYFGTDSSG RDLLVRVAIG GRISLMVGVA AALVAVVVGT 
121:	LYGSLSGYLG GKVDSVMMRL LEILNSFPFM FFVILLVTFF GQNILLIFVA IGMVSWLDMA 
181:	RIVRGQTLSL KRKEFIEAAQ VGGVSTSGIV IRHIVPNVLG VVVVYASLLV PSMILFESFL 
241:	SFLGLGTQEP LSSWGALLSD GANSMEVSPW LLLFPAGFLV VTLFCFNFIG DGLRDALDPK 
301:	DR