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
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[Homology]
Score
speE1Spermidine synthase, SpeE; Involved in the biosynthesis of polyamines which are thought to support the growth of thermophilic microorganisms under high- temperature conditions. It seems that long-chain and branched-chain of polyamines effectively stabilize DNA and RNA, respectively. Catalyzes the irreversible transfer of a propylamine group from the amino donor S-adenosylmethioninamine (decarboxy-AdoMet) to norspermidine, spermidine and norspermine to yield norspermine, thermospermine and caldopentamine, respectively. It can also synthesize sym-norspermidine (bis(3-aminopropyl)amine) f [...] (292 aa)    
Predicted Functional Partners:
speH
S-adenosylmethionine decarboxylase proenzyme; 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; Belongs to the prokaryotic AdoMetDC family. Type 1 subfamily.
  
 
 0.978
Hbut_1182
S-adenosylmethionine decarboxylase; Specifically catalyzes the decarboxylation of L-arginine to agmatine. Has no S-adenosylmethionine decarboxylase (AdoMetDC) activity; Belongs to the prokaryotic AdoMetDC family. Type 1 subfamily.
  
 
 0.978
Hbut_0051
Agmatinase (agmatine ureohydrolase); Belongs to the arginase family.
  
 
 0.951
mtnP
S-methyl-5-thioadenosine phosphorylase; Catalyzes the reversible phosphorylation of S-methyl-5'- thioadenosine (MTA) to adenine and 5-methylthioribose-1-phosphate. Involved in the breakdown of MTA, a major by-product of polyamine biosynthesis. Responsible for the first step in the methionine salvage pathway after MTA has been generated from S-adenosylmethionine. Has broad substrate specificity with 6-aminopurine nucleosides as preferred substrates; Belongs to the PNP/MTAP phosphorylase family. MTAP subfamily.
  
 
 0.928
speE2
Spermidine synthase; Involved in the biosynthesis of polyamines which are thought to support the growth of thermophilic microorganisms under high- temperature conditions. It seems that long-chain and branched-chain of polyamines effectively stabilize DNA and RNA, respectively. Catalyzes the irreversible transfer of a propylamine group from the amino donor S-adenosylmethioninamine (decarboxy-AdoMet) to 1,3-diaminopropane to yield sym-norspermidine (bis(3-aminopropyl)amine). It can also synthesize thermospermine from spermidine with a very low activity. Belongs to the spermidine/spermine [...]
  
  
 
0.907
ssnA
Cytosine deaminase.
   
  0.906
Hbut_0922
S-methyl-5-thioadenosine phosphorylase.
     
  0.900
rps9
30S ribosomal protein S9P; Belongs to the universal ribosomal protein uS9 family.
   
    0.615
fusA
Elongation factor 2; Catalyzes the GTP-dependent ribosomal translocation step during translation elongation. During this step, the ribosome changes from the pre-translocational (PRE) to the post-translocational (POST) state as the newly formed A-site-bound peptidyl-tRNA and P-site-bound deacylated tRNA move to the P and E sites, respectively. Catalyzes the coordinated movement of the two tRNA molecules, the mRNA and conformational changes in the ribosome; Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase family. EF-G/EF-2 subfamily.
  
    0.615
ef1b
Elongation factor 1-beta; Promotes the exchange of GDP for GTP in EF-1-alpha/GDP, thus allowing the regeneration of EF-1-alpha/GTP that could then be used to form the ternary complex EF-1-alpha/GTP/AAtRNA.
  
    0.522
Your Current Organism:
Hyperthermus butylicus
NCBI taxonomy Id: 415426
Other names: H. butylicus DSM 5456, Hyperthermus butylicus DSM 5456, Hyperthermus butylicus str. DSM 5456, Hyperthermus butylicus strain DSM 5456
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STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.