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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Gene Fusion
Cooccurrence
Coexpression
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[Homology]
Score
luxSQuorum-sensing autoinducer 2 (AI-2), LuxS; Involved in the synthesis of autoinducer 2 (AI-2) which is secreted by bacteria and is used to communicate both the cell density and the metabolic potential of the environment. The regulation of gene expression in response to changes in cell density is called quorum sensing. Catalyzes the transformation of S-ribosylhomocysteine (RHC) to homocysteine (HC) and 4,5-dihydroxy-2,3-pentadione (DPD). Belongs to the LuxS family. (168 aa)    
Predicted Functional Partners:
mtnN
Adenosylhomocysteine nucleosidase; Catalyzes the irreversible cleavage of the glycosidic bond in both 5'-methylthioadenosine (MTA) and S-adenosylhomocysteine (SAH/AdoHcy) to adenine and the corresponding thioribose, 5'- methylthioribose and S-ribosylhomocysteine, respectively. Belongs to the PNP/UDP phosphorylase family. MtnN subfamily.
 
 
 0.985
HSM_0774
TIGRFAM: cystathionine beta-lyase; PFAM: Cys/Met metabolism pyridoxal-phosphate-dependent protein; KEGG: hso:HS_0475 cystathionine beta-lyase.
 
 
 0.931
HSM_0277
Cystathionine gamma-synthase; PFAM: Cys/Met metabolism pyridoxal-phosphate-dependent protein; aromatic amino acid beta-eliminating lyase/threonine aldolase; KEGG: hso:HS_1345 cystathionine gamma-synthase.
  
 
 0.927
HSM_0854
PFAM: Methionine synthase vitamin-B12 independent; KEGG: hso:HS_1226 possible 5-methyltetrahydropteroyltriglutamate-homocysteine methyltransferase.
    
 0.914
metE
5-methyltetrahydropteroyltriglutamate-- homocysteine S-methyltransferase; Catalyzes the transfer of a methyl group from 5- methyltetrahydrofolate to homocysteine resulting in methionine formation; Belongs to the vitamin-B12 independent methionine synthase family.
    
 0.914
HSM_0639
TIGRFAM: cysteine synthase; cysteine synthase A; PFAM: Pyridoxal-5'-phosphate-dependent protein beta subunit; KEGG: hso:HS_0369 cysteine synthase; Belongs to the cysteine synthase/cystathionine beta- synthase family.
 
 
 0.902
HSM_1259
Aspartate transaminase; PFAM: aminotransferase class I and II; KEGG: hso:HS_0792 possible aminotransferase.
     
  0.900
HSM_0349
TIGRFAM: aspartate kinase; PFAM: aspartate/glutamate/uridylate kinase; homoserine dehydrogenase; amino acid-binding ACT domain protein; homoserine dehydrogenase NAD-binding; KEGG: hso:HS_1214 aspartate kinase/homoserine dehydrogenase; In the C-terminal section; belongs to the homoserine dehydrogenase family.
     
 0.869
ilvA
Threonine dehydratase, biosynthetic; Catalyzes the anaerobic formation of alpha-ketobutyrate and ammonia from threonine in a two-step reaction. The first step involved a dehydration of threonine and a production of enamine intermediates (aminocrotonate), which tautomerizes to its imine form (iminobutyrate). Both intermediates are unstable and short-lived. The second step is the nonenzymatic hydrolysis of the enamine/imine intermediates to form 2- ketobutyrate and free ammonia. In the low water environment of the cell, the second step is accelerated by RidA.
     
 0.804
thrB
Homoserine kinase; Catalyzes the ATP-dependent phosphorylation of L-homoserine to L-homoserine phosphate; Belongs to the GHMP kinase family. Homoserine kinase subfamily.
     
  0.800
Your Current Organism:
Histophilus somni
NCBI taxonomy Id: 228400
Other names: H. somni 2336, Haemophilus somnus 2336, Histophilus somni 2336, Histophilus somni str. 2336
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STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.