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
speESpermidine synthase (speE); Catalyzes the irreversible transfer of a propylamine group from the amino donor S-adenosylmethioninamine (decarboxy-AdoMet) to putrescine (1,4-diaminobutane) to yield spermidine. (293 aa)    
Predicted Functional Partners:
speH
Conserved hypothetical protein; 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.
 
 0.999
speB
Agmatinase (speB); Catalyzes the formation of putrescine from agmatine.
  
 
 0.997
MJ_0060
Methylthioadenosine phosphorylase (mtaP); Catalyzes the reversible phosphorylation of S-methyl-5'- thioinosine (MTI) to hypoxanthine and 5-methylthioribose-1-phosphate. Involved in the breakdown of S-methyl-5'-thioadenosine (MTA), a major by-product of polyamine biosynthesis. Catabolism of (MTA) occurs via deamination to MTI and phosphorolysis to hypoxanthine.
  
 
 0.940
dadD
N-ethylammeline chlorohydrolase (trzA); Catalyzes the deamination of three SAM-derived enzymatic products, namely 5'-deoxyadenosine, S-adenosyl-L-homocysteine, and 5'- methylthioadenosine, to produce the inosine analogs. Can also deaminate adenosine. The preferred substrate for this enzyme is 5'- deoxyadenosine, but all these substrates are efficiently deaminated. Likely functions in a S-adenosyl-L-methionine (SAM) recycling pathway from S-adenosyl-L-homocysteine (SAH) produced from SAM-dependent methylation reactions. May also be involved in the recycling of 5'-deoxyadenosine, whereup [...]
  
 0.921
lysA
Diaminopimelate decarboxylase (lysA); Specifically catalyzes the decarboxylation of meso- diaminopimelate (meso-DAP) to L-lysine.
  
 
 0.915
pdaD
Conserved hypothetical protein; Similar to GB:AE000666 percent identity: 38.46; identified by sequence similarity; putative; Belongs to the PdaD family.
  
  
 0.848
hcp
[6Fe-6S] prismane-containing protein; Catalyzes the reduction of hydroxylamine to form NH(3) and H(2)O.
   
 
 0.758
pyrG
CTP synthase (pyrG); Catalyzes the ATP-dependent amination of UTP to CTP with either L-glutamine or ammonia as the source of nitrogen. Regulates intracellular CTP levels through interactions with the four ribonucleotide triphosphates.
  
  
 0.684
MJ_0454
Translation initiation factor aIF-2B, subunit delta (aIF2BD); Catalyzes the interconversion of methylthioribose-1-phosphate (MTR-1-P) into methylthioribulose-1-phosphate (MTRu-1-P). Belongs to the eIF-2B alpha/beta/delta subunits family. MtnA subfamily.
  
  
 0.633
MJ_1411
Glyceraldehyde-3-phosphate dehydrogenase, NADP-dependent (gapN); Involved in F420 biosynthesis through the oxidation of lactaldehyde to lactate. The substrate preference order is propionaldehyde > DL-lactaldehyde, DL-glyceraldehyde > crotonaldehyde > glycolaldehyde > acetaldehyde, acrolein > formaldehyde. No activity was observed towards methylglyoxal or glyceraldehyde-3-phosphate. Has a preference for NAD over NADP.
  
 
 0.619
Your Current Organism:
Methanocaldococcus jannaschii
NCBI taxonomy Id: 243232
Other names: M. jannaschii DSM 2661, Methanocaldococcus jannaschii DSM 2661, Methanocaldococcus jannaschii str. DSM 2661, Methanococcus jannaschii DSM 2661
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