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
Databases
Textmining
[Homology]
Score
potDSpermidine/putrescine ABC transporter periplasmic binding protein; Required for the activity of the bacterial periplasmic transport system of putrescine and spermidine. Polyamine binding protein; Belongs to the bacterial solute-binding protein PotD/PotF family. (348 aa)    
Predicted Functional Partners:
potC
Spermidine/putrescine ABC transporter permease; Required for the activity of the bacterial periplasmic transport system of putrescine and spermidine; Belongs to the binding-protein-dependent transport system permease family. CysTW subfamily.
 
 0.999
potB
Spermidine/putrescine ABC transporter permease; Required for the activity of the bacterial periplasmic transport system of putrescine and spermidine; Belongs to the binding-protein-dependent transport system permease family. CysTW subfamily.
 
 0.999
potA
Spermidine/putrescine ABC transporter ATPase; Part of the ABC transporter complex PotABCD involved in spermidine/putrescine import. Responsible for energy coupling to the transport system. Belongs to the ABC transporter superfamily. Spermidine/putrescine importer (TC 3.A.1.11.1) family.
 
 0.999
potI
Putrescine ABC transporter permease; Required for the activity of the bacterial periplasmic transport system of putrescine; Belongs to the binding-protein-dependent transport system permease family. CysTW subfamily.
  
 0.993
ydcV
Putative ABC transporter permease; Involved in natural transformation. Probably part of the ABC transporter complex YdcSTUV. Probably responsible for the translocation of the substrate across the membrane. During natural transformation, may serve as the channel for dsDNA uptake (Probable).
  
 0.986
potH
Putrescine ABC transporter permease; Required for the activity of the bacterial periplasmic transport system of putrescine; Belongs to the binding-protein-dependent transport system permease family. CysTW subfamily.
  
 0.952
ydcU
Putative ABC transporter permease; Probably part of the ABC transporter complex YdcSTUV. Probably responsible for the translocation of the substrate across the membrane.
  
 0.819
potG
Putrescine ABC transporter ATPase; Part of the binding-protein-dependent transport system for putrescine. Probably responsible for energy coupling to the transport system; Belongs to the ABC transporter superfamily.
  
 0.794
ydcT
Putative ABC transporter ATPase; Probably part of the ABC transporter complex YdcSTUV. Probably responsible for energy coupling to the transport system.
  
 0.781
speE
Spermidine synthase (putrescine aminopropyltransferase); Involved in the biosynthesis of polyamines which play a significant role in the structural and functional organization in the chromoid of E.coli by compacting DNA and neutralizing negative charges. Catalyzes the irreversible transfer (ping-pong mechanism) of a propylamine group from the amino donor S-adenosylmethioninamine (decarboxy-AdoMet) to putrescine (1,4-diaminobutane) to yield spermidine. Cadaverine (1,5-diaminopentane) and spermidine can also be used as the propylamine acceptor.
  
  
 0.636
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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