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
egtDConserved hypothetical protein; Catalyzes the SAM-dependent triple methylation of the alpha- amino group of histidine to form hercynine, a step in the biosynthesis pathway of ergothioneine. Among all the proteinogenic amino acids, only L-histidine is a substrate. (321 aa)    
Predicted Functional Partners:
egtB
Conserved hypothetical protein; Catalyzes the oxidative sulfurization of hercynine (N- alpha,N-alpha,N-alpha-trimethyl-L-histidine) into hercynyl-gamma-L- glutamyl-L-cysteine sulfoxide, a step in the biosynthesis pathway of ergothioneine. Cannot use the alternative thiols cysteine, N- acetylcysteine, or glutathione instead of gamma-glutamylcysteine as substrates, and histidine is a poor sulfur acceptor substrate compared to hercynine; Belongs to the EgtB family.
 
 0.999
egtC
Conserved hypothetical protein; Catalyzes the hydrolysis of the gamma-glutamyl amide bond of hercynyl-gamma-L-glutamyl-L-cysteine sulfoxide to produce hercynylcysteine sulfoxide, a step in the biosynthesis pathway of ergothioneine.
  
 0.997
egtA
Glutamate--cysteine ligase; Catalyzes the synthesis of gamma-glutamylcysteine (gamma-GC) (By similarity). This compound is used as substrate for the biosynthesis of the low-molecular thiol compound ergothioneine.
 
  
 0.995
egtE
Pyridoxal-phosphate-dependent transferase; Probably catalyzes the conversion of hercynylcysteine sulfoxide to ergothioneine. Ergothioneine is a secreted antioxidant that protects mycobacterium from oxidative stress. Belongs to the class-V pyridoxal-phosphate-dependent aminotransferase family. EgtE subfamily.
  
  
 0.993
ABK75199.1
Sulfatase-modifying factor 1; Identified by match to protein family HMM PF03781.
 
  
 0.927
ABK71897.1
Sulfatase-modifying factor 1; Identified by match to protein family HMM PF03781.
 
  
 0.926
hutH
Histidine ammonia-lyase; Identified by similarity to EGAD:14121; match to protein family HMM PF00221; match to protein family HMM TIGR01225.
   
 
 0.915
hisD-2
Histidinol dehydrogenase; Catalyzes the sequential NAD-dependent oxidations of L- histidinol to L-histidinaldehyde and then to L-histidine.
   
 
  0.901
ABK72529.1
Conserved hypothetical protein.
   
  
 0.779
purD
Phosphoribosylamine--glycine ligase; Identified by match to protein family HMM PF01071; match to protein family HMM PF02843; match to protein family HMM PF02844; match to protein family HMM TIGR00877; Belongs to the GARS family.
   
  
 0.779
Your Current Organism:
Mycolicibacterium smegmatis
NCBI taxonomy Id: 246196
Other names: M. smegmatis MC2 155, Mycobacterium smegmatis MC2 155, Mycolicibacterium smegmatis MC2 155
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