close STRING Database User Survey
Please help us improve further — take a moment to fill our brief user survey.
 
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:
some 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
Cooccurence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
yrbGPutative calcium/sodium:proton antiporter; Inner membrane protein YrbG; Protein involved in calcium:sodium antiporter activity (325 aa)    
Predicted Functional Partners:
kdsD
D-arabinose 5-phosphate isomerase kdsd; Involved in the biosynthesis of 3-deoxy-D-manno-octulosonate (KDO), a unique 8-carbon sugar component of lipopolysaccharides (LPSs). KdsD is not essential in the KDO biosynthesis and can be substituted by GutQ. Catalyzes the reversible aldol-ketol isomerization between D- ribulose 5-phosphate (Ru5P) and D-arabinose 5-phosphate (A5P)
  
  
 0.966
lptC
Periplasmic membrane-anchored lps-binding protein; Involved in the assembly of lipopolysaccharide (LPS). Required for the translocation of LPS from the inner membrane to the outer membrane. Facilitates the transfer of LPS from the inner membrane to the periplasmic protein LptA. Could be a docking site for LptA
  
 
 0.956
kdsC
3-deoxy-D-manno-octulosonate 8-phosphate phosphatase (KDO 8-P phosphatase); Catalyzes the hydrolysis of 3-deoxy-D-manno-octulosonate 8- phosphate (KDO 8-P) to 3-deoxy-D-manno-octulosonate (KDO) and inorganic phosphate
  
  
 0.955
lptB
Lipopolysaccharide transport system atp binding protein; Part of the ABC transporter complex LptBFG involved in the translocation of lipopolysaccharide (LPS) from the inner membrane to the outer membrane. Probably responsible for energy coupling to the transport system
     
 0.952
lptA
Lipopolysaccharide export abc transporter periplasmic binding protein; Involved in the assembly of lipopolysaccharide (LPS). Required for the translocation of LPS from the inner membrane to the outer membrane. May form a bridge between the inner membrane and the outer membrane, via interactions with LptC and LptD, thereby facilitating LPS transfer across the periplasm
     
 0.922
chaA
Calcium/sodium:proton antiporter; Sodium exporter that functions mainly at alkaline pH. Can also function as a potassium/proton and calcium/proton antiporter at alkaline pH. Does not play a major role in calcium export
   
  
 0.848
mlaE
Abc transporter maintaining om lipid asymmetry, inner membrane permease protein; Part of the ABC transporter complex MlaFEDB, which is involved in a phospholipid transport pathway that maintains lipid asymmetry in the outer membrane by retrograde trafficking of phospholipids from the outer membrane to the inner membrane. Probably responsible for the translocation of the substrate across the membrane
  
  
 0.827
mlaF
Phospholipid/cholesterol/gamma-hch transport system atp-binding protein; Part of the ABC transporter complex MlaFEDB, which is involved in a phospholipid transport pathway that maintains lipid asymmetry in the outer membrane by retrograde trafficking of phospholipids from the outer membrane to the inner membrane. Responsible for energy coupling to the transport system
  
  
 0.802
mlaD
Phospholipid/cholesterol/gamma-hch transport system substrate-binding protein; Part of the ABC transporter complex MlaFEDB, which is involved in a phospholipid transport pathway that maintains lipid asymmetry in the outer membrane by retrograde trafficking of phospholipids from the outer membrane to the inner membrane . MlaD functions in substrate binding with strong affinity for phospholipids and modulates ATP hydrolytic activity of the complex
     
 0.795
mlaC
Abc transporter maintaining om lipid asymmetry, periplasmic binding protein; Involved in a phospholipid transport pathway that maintains lipid asymmetry in the outer membrane by retrograde trafficking of phospholipids from the outer membrane to the inner membrane. May transfer phospholipid across the periplasmic space and deliver it to the MlaFEDB complex at the inner membrane
     
 0.782
Your Current Organism:
Escherichia coli K12 MG1655
NCBI taxonomy Id: 511145
Other names: E. coli str. K-12 substr. MG1655, Escherichia coli K12 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
Server load: low (6%) [HD]