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
trpATrpA protein; The alpha subunit is responsible for the aldol cleavage of indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate. Belongs to the TrpA family. (271 aa)    
Predicted Functional Partners:
trpB
TrpB protein; The beta subunit is responsible for the synthesis of L- tryptophan from indole and L-serine.
 0.999
trpC
Indole-3-glycerol phosphate synthase (IGPS). catalytic activity:1-(2-carboxyphenylamino)-1-deoxy-d-ribulose 5-phosphate = 1-(indol-3-yl)glycerol 3-phosphate + co(2) + h(2)o. pathway: tryptophan biosynthesis; fourth step. InterPro: Indole-3-glycerol phosphate synthase; High confidence in function and specificity; Belongs to the TrpC family.
 
 
 0.998
trpF
N-(5-phosphoribosyl)anthranilate isomerase (PRAI) catalyzes the third step of tryptophan biosynthesis. Similar to sprot|TRPF_RALSO (56%) and to sprot|TRPF_PSEAE (58%). Pfam (PF00697): N-(5'phosphoribosyl)anthranilate isomerase (PRAI); High confidence in function and specificity.
 
 
 0.996
trpG
Anthranilate synthase component II (Glutamine amido-transferase). catalytic activity: chorismate + l-glutamine = anthranilate + pyruvate + l-glutamate. pathway: tryptophan biosynthesis; first step. TIGRFAM: trpG_papA: glutamine amidotransferase of anthranilate synthase or para-aminobenzoate synthase; High confidence in function and specificity.
 
 
 0.988
trpD
1,4-alpha-glucan branching enzyme; Catalyzes the transfer of the phosphoribosyl group of 5- phosphorylribose-1-pyrophosphate (PRPP) to anthranilate to yield N-(5'- phosphoribosyl)-anthranilate (PRA).
 
  
 0.976
pabB
Para-aminobenzoate synthase component I (EC 4.1.3.-) (ADC synthase). CATALYZES THE BIOSYNTHESIS OF 4-AMINO-4-DEOXYCHORISMATE (ADC) FROM CHORISMATE AND GLUTAMINE. InterPro: Anthranilate synthase component I and chorismate binding enzyme pabB: para-aminobenzoate synthase component I; Specificity unclear.
 
  
 0.974
trpE
Anthranilate synthase; Part of a heterotetrameric complex that catalyzes the two- step biosynthesis of anthranilate, an intermediate in the biosynthesis of L-tryptophan. In the first step, the glutamine-binding beta subunit (TrpG) of anthranilate synthase (AS) provides the glutamine amidotransferase activity which generates ammonia as a substrate that, along with chorismate, is used in the second step, catalyzed by the large alpha subunit of AS (TrpE) to produce anthranilate. In the absence of TrpG, TrpE can synthesize anthranilate directly from chorismate and high concentrations of ammonia.
 
  
 0.958
glyA
Serine hydroxymethyltransferase; Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism.
 
 
 
 0.947
ilvA
Probable 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.
  
 
 0.917
serB
Phosphoserine phosphatase, SerB, catalyzes the final step in serine biosynthesis in E. coli. It hydrolyses the phosphate group from phosphoserine to yield serine. Similar to trembl|Q82X56 (54%) and to sprot|SERB_ECOLI (37%). TIGRFAM: phosphoserine phosphatase SerB Pfam (PF00702): haloacid dehalogenase-like hydrolase; Specificity unclear.
   
 
 0.892
Your Current Organism:
Azoarcus sp. BH72
NCBI taxonomy Id: 62928
Other names: A. sp. BH72
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