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
speABiosynthetic arginine decarboxylase, PLP-binding; Catalyzes the biosynthesis of agmatine from arginine. Belongs to the Orn/Lys/Arg decarboxylase class-II family. SpeA subfamily. (658 aa)    
Predicted Functional Partners:
speB
Agmatinase; Catalyzes the formation of putrescine from agmatine.
 
 
 0.981
adiA
Arginine decarboxylase; ADC can be found in two forms: biodegradative and biosynthetic. The biodegradative form may play a role in regulating pH by consuming proteins; Belongs to the Orn/Lys/Arg decarboxylase class-I family.
     
 0.954
astA
Arginine succinyltransferase; Catalyzes the transfer of succinyl-CoA to arginine to produce N(2)-succinylarginine.
     
  0.900
rpmH
50S ribosomal subunit protein L34; Protein involved in structural constituent of ribosome and translation; Belongs to the bacterial ribosomal protein bL34 family.
   
  0.898
rpsT
30S ribosomal subunit protein S20; Binds directly to 16S ribosomal RNA.
   
  0.896
argH
Argininosuccinate lyase; Protein involved in arginine biosynthetic process.
     
 0.895
yqgB
Uncharacterized protein; Belongs to the YqgB family.
  
    0.799
speD
S-adenosylmethionine decarboxylase; Catalyzes the decarboxylation of S-adenosylmethionine to S- adenosylmethioninamine (dcAdoMet), the propylamine donor required for the synthesis of the polyamines spermine and spermidine from the diamine putrescine.
  
  
 0.740
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.
  
  
 0.694
metK
S-adenosylmethionine synthetase; Catalyzes the formation of S-adenosylmethionine (AdoMet) from methionine and ATP. The overall synthetic reaction is composed of two sequential steps, AdoMet formation and the subsequent tripolyphosphate hydrolysis which occurs prior to release of AdoMet from the enzyme. Is essential for growth.
  
  
 0.579
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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STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.