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
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[Homology]
Score
ilvD1Dihydroxy-acid dehydratase catalyzes the fourth step in the biosynthesis of isoleucine and valine, the dehydratation of 2,3-dihydroxy-isovaleic acid into alpha-ketoisovaleric acid; Binds a 4Fe-4S cluster; Localized in the cytoplasm; High confidence in function and specificity; Belongs to the IlvD/Edd family. (558 aa)    
Predicted Functional Partners:
ilvC
Ketol-acid reductoisomerase; Involved in the biosynthesis of branched-chain amino acids (BCAA). Catalyzes an alkyl-migration followed by a ketol-acid reduction of (S)-2-acetolactate (S2AL) to yield (R)-2,3-dihydroxy-isovalerate. In the isomerase reaction, S2AL is rearranged via a Mg-dependent methyl migration to produce 3-hydroxy-3-methyl-2-ketobutyrate (HMKB). In the reductase reaction, this 2-ketoacid undergoes a metal-dependent reduction by NADPH to yield (R)-2,3-dihydroxy-isovalerate.
 
 
 0.987
ilvB
Acetolactate synthase is a complex of a large catalytic chain and a small regulatory chain associated in an alpha2/beta2 heterotetramer. It catalyzes the first step of the isoleucine and valine biosynthesic pathways. The catalytic subunit, IlvB, is a thiamine pyrophosphate-dependent enzyme. It also binds one magnesium ion and one FAD per subunit, although the role of this cofactor is not clear considering that the reaction does not involve redox chemistry; Localized in the cytoplasm; High confidence in function and specificity.
  
 0.986
leuA2
2-Isopropylmalate synthase catalyzes the first step in the L-leucine biosynthesis pathway. LeuA condensates the acetyl group of acetyl-CoA with 3-methyl-2- oxobutanoate (2-oxoisovalerate) to form 3-carboxy-3-hydroxy-4-methylpentanoate (2-isopropylmalate). LeuA2 is a paralogue of leuA1 which misses the C-terminal LeuA-dimerization domain. Localized in the cytoplasm; Specificity unclear; Belongs to the alpha-IPM synthase/homocitrate synthase family.
 
 
 0.981
ilvE
Branched-chain-amino-acid aminotransferase is involved in leucine, isoleucine and valine biosynthesis from L-glutamic acid; It forms a homohexamer and used one Pyridoxal phosphate as cofactor per subunit; Belongs to the Aminotransferase class IV; Localized in the cytoplasm; High confidence in function and specificity.
  
 0.972
datA
D-Amino-acid transaminase acts on the D-isomers of alanine, leucine, aspartate, glutamate, aminobutyrate, norvaline and asparagine. The enzyme transfers an amino group from a substrate D-amino acid to the pyridoxal phosphate prosthetic group to form pyridoxamine and an alpha-keto acid in the first half-reaction. the second half-reaction transferes the amino group from the pyridoxamine to a second alpha-keto acid to form the product D-amino acid via a ping-pong mechanism. This is an important process in the formation of D-alanine and D-glutamate, which are essential bacterial cell wall [...]
  
 0.972
ilvH
Acetolactate synthase is a complex of a large catalytic chain and a smaller regulatory chain associated in an alpha2/beta2 heterotetramer. It catalyzes the first step of the isoleucine and valine biosynthesic pathways. The regulatory subunit, IlvH, features an ACT domain. ACT domains are linked to a wide range of metabolic enzymes that are regulated by amino acid concentration; Localized in the cytoplasm; High confidence in function and specificity.
 
 
 0.930
panB
3-Methyl-2-oxobutanoate hydroxymethyltransferase; Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is transferred onto alpha- ketoisovalerate to form ketopantoate; Belongs to the PanB family.
     
 0.912
leuC
3-Isopropylmalate dehydratase, large subunit; Catalyzes the isomerization between 2-isopropylmalate and 3- isopropylmalate, via the formation of 2-isopropylmaleate.
 
  
 0.903
ilvA
Threonine dehydratase; 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.
  
 0.896
leuD
3-Isopropylmalate dehydratase, small subunit; Catalyzes the isomerization between 2-isopropylmalate and 3- isopropylmalate, via the formation of 2-isopropylmaleate. Belongs to the LeuD family. LeuD type 1 subfamily.
 
  
 0.885
Your Current Organism:
Zobellia galactanivorans
NCBI taxonomy Id: 63186
Other names: CCUG 47099, CIP 106680, Cytophaga drobachiensis, DSM 12802, Flavobacterium droebachense, Pseudomonas droebachense, Z. galactanivorans, Zobellia galactanivorans corrig. Barbeyron et al. 2001, Zobellia galactanovorans, strain Dsij
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