STRINGSTRING
STRING protein interaction network
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
Your Input:
Neighborhood
Gene Fusion
Cooccurrence
Coexpression
Experiments
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[Homology]
Score
mppAMurein tripeptide (L-ala-gamma-D-glutamyl-meso-DAP) transporter subunit; Essential for the uptake of the murein peptide L-alanyl- gamma-D-glutamyl-meso-diaminopimelate. Also transports some alpha- linked peptides such as Pro-Phe-Lys with low affinity. The transport is effected by the oligopeptide permease system; Belongs to the bacterial solute-binding protein 5 family. (537 aa)    
Predicted Functional Partners:
oppB
Oligopeptide ABC transporter permease; Part of the binding-protein-dependent transport system for oligopeptides; probably responsible for the translocation of the substrate across the membrane; Belongs to the binding-protein-dependent transport system permease family. OppBC subfamily.
  
 0.991
oppC
Oligopeptide ABC transporter permease; Part of the binding-protein-dependent transport system for oligopeptides; probably responsible for the translocation of the substrate across the membrane; Belongs to the binding-protein-dependent transport system permease family. OppBC subfamily.
  
 0.991
oppD
Oligopeptide ABC transporter ATPase; Part of the binding-protein-dependent transport system for oligopeptides. Probably responsible for energy coupling to the transport system.
  
 0.985
oppF
Oligopeptide ABC transporter ATPase; Part of the binding-protein-dependent transport system for oligopeptides. Probably responsible for energy coupling to the transport system; Belongs to the ABC transporter superfamily.
  
 0.983
oppA
Oligopeptide ABC transporter periplasmic binding protein; This protein is a component of the oligopeptide permease, a binding protein-dependent transport system, it binds peptides up to five amino acids long with high affinity; Belongs to the bacterial solute-binding protein 5 family.
  
  
0.909
ddpF
D,D-dipeptide ABC transporter ATPase; Part of the ABC transporter complex DdpABCDF, which is probably involved in D,D-dipeptide transport. Probably responsible for energy coupling to the transport system.
 
 0.837
dppA
Dipeptide/heme ABC transporter periplasmic binding protein; Dipeptide-binding protein of a transport system that can be subject to osmotic shock. DppA is also required for peptide chemotaxis; Belongs to the bacterial solute-binding protein 5 family.
 
  
0.828
dppB
Dipeptide/heme ABC transporter permease; Part of the binding-protein-dependent transport system for dipeptides; probably responsible for the translocation of the substrate across the membrane; Belongs to the binding-protein-dependent transport system permease family. OppBC subfamily.
  
 0.806
dppF
Dipeptide/heme ABC transporter ATPas; Part of the binding-protein-dependent transport system for dipeptides. Probably responsible for energy coupling to the transport system; Belongs to the ABC transporter superfamily.
 
 0.805
mpaA
Murein peptide amidase A; Involved in muropeptide degradation. Catalyzes the hydrolysis of the gamma-D-glutamyl-diaminopimelic acid (gamma-D-Glu-Dap) amide bond in the murein tripeptide L-alanyl-gamma-D-glutamyl-meso- diaminopimelic acid, leading to the formation of L-Ala-gamma-D-Glu and Dap. Has weak activity with L-Ala- gamma-D-Glu-L-Lys, MurNAc-tripeptide and gamma-D-Glu-meso-Dap. Cannot hydrolyze murein tetrapeptide ; Belongs to the peptidase M14 family.
  
  
 0.796
Your Current Organism:
Escherichia coli K12
NCBI taxonomy Id: 511145
Other names: E. coli str. K-12 substr. MG1655, Escherichia coli MG1655, Escherichia coli str. K-12 substr. MG1655, Escherichia coli str. K12 substr. MG1655, Escherichia coli str. MG1655, Escherichia coli strain MG1655
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