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.
Knowledge-based Evidence
from curated databases
textmining
Assay-based Predictions
experimentally determined
co-expression
Genomic Predictions
gene neighborhood
gene co-occurrence
gene fusions
Your Input:
Neighborhood
Gene Fusion
Co-occurrence
Co-expression
Experiments
Databases
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[Homology]
Score
dppAD-alanyl-aminopeptidase; Hydrolyzes N-terminal residues in D-amino acid containing peptides. Among the tested substrates, the highest activities are with D-Ala-D-Ala and D-Ala-Gly-Gly. The physiological role is not clear; Belongs to the peptidase M55 family. (274 aa)    
Predicted Functional Partners:
dppB
Dipeptide ABC transporter (permease); Part of the binding-protein-dependent transport system for dipeptides; probably responsible for the translocation of the substrate across the membrane. Is expressed to facilitate adaptation to nutrient deficiency conditions.
  
  
 0.993
dppE
Dipeptide ABC transporter (dipeptide-binding lipoprotein); Part of the binding-protein-dependent transport system for dipeptides; probably responsible for the binding of dipeptides with high affinity. Is expressed to facilitate adaptation to nutrient deficiency conditions, which also induce sporulation; Belongs to the bacterial solute-binding protein 5 family.
 
  
 0.985
dppC
Dipeptide ABC transporter (permease); Part of the binding-protein-dependent transport system for dipeptides; probably responsible for the translocation of the substrate across the membrane. Is expressed to facilitate adaptation to nutrient deficiency conditions, which also induce sporulation.
 
  
 0.983
dppD
Dipeptide ABC transporter (ATP-binding protein); Part of the binding-protein-dependent transport system for dipeptides. Probably responsible for energy coupling to the transport system. Expressed to facilitate adaptation to nutrient deficiency conditions, which also induce sporulation; Belongs to the ABC transporter superfamily.
  
  
 0.977
ldcA
Muropeptide L,D-carboxypeptidase; May be involved in the degradation of peptidoglycan by catalyzing the cleavage of the terminal D-alanine residue from cytoplasmic murein peptides; Belongs to the peptidase S66 family.
 
    0.899
ykfB
L-Ala-D/L-Glu epimerase; Catalyzes the epimerization of L-Ala-D-Glu to L-Ala-L-Glu and has probably a role in the metabolism of the murein peptide, of which L-Ala-D-Glu is a component. Is also able to catalyze the reverse reaction and the epimerization of the other Ala-X dipeptides L-Ala-L- Asp, L-Ala-L-Leu, L-Ala-L-Met, and L-Ala-L-Ser. Is not able to epimerize other L-Ala-X dipeptides. Is also active with L-Ser-L-Glu and, oddly, L-Pro-L-Glu, but not with L-Glu-L-Glu, L-Lys-L-Glu, L-Lys- L-Ala, or D-Ala-D-Ala.
 
    0.895
ykfC
gamma-D-glutamyl-L-diaminoacid endopeptidase; Specifically hydrolyzes gamma-D-glutamyl-L-lysine bonds in murein peptides, releasing L-Ala-D-Glu.
 
    0.880
ykfD
Putative cell wall oligopeptide ABC transporter (ATP binding protein); Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative transporter; Belongs to the ABC transporter superfamily.
  
    0.840
ylmA
Putative ABC transporter (ATP-binding protein); Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative transporter.
   
  
 0.738
amhX
Amidohydrolase; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type e: enzyme; Belongs to the peptidase M20 family.
  
  
 0.600
Your Current Organism:
Bacillus subtilis 168
NCBI taxonomy Id: 224308
Other names: B. subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis 168, Bacillus subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis str. BGSC 1A700
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