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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Textmining
[Homology]
Score
Hmt4-20Histone-lysine N-methyltransferase Suv4-20; Histone methyltransferase that specifically trimethylates 'Lys-20' of histone H4. H4 'Lys-20' trimethylation represents a specific tag for epigenetic transcriptional repression. Mainly functions in pericentric heterochromatin regions, thereby playing a central role in the establishment of constitutive heterochromatin in these regions. Acts as a dominant suppressor of position-effect variegation; Belongs to the class V-like SAM-binding methyltransferase superfamily. Histone-lysine methyltransferase family. Suvar4-20 subfamily. (1300 aa)    
Predicted Functional Partners:
PR-Set7
Histone-lysine N-methyltransferase PR-Set7; Histone methyltransferase that specifically monomethylates 'Lys-20' of histone H4. H4 'Lys-20' monomethylation is enriched during mitosis and represents a specific tag for epigenetic transcriptional repression. Mainly functions in euchromatin regions, thereby playing a central role in the silencing of euchromatic genes. Required for cell proliferation, possibly by contributing to the maintenance of proper higher-order structure of DNA and chromosome condensation during mitosis; Belongs to the class V-like SAM-binding methyltransferase superfa [...]
   
  
 0.927
CG10947
FI04554p; S-adenosylmethionine-dependent methyltransferase activity; calmodulin-lysine N-methyltransferase activity. It is involved in the biological process described with: regulation of translation.
     
 0.904
Set2
Probable histone-lysine N-methyltransferase CG1716; Probable histone methyltransferase. Histone methylation gives specific tags for epigenetic transcriptional activation or repression (By similarity).
   
  
 0.879
Set1
Histone-lysine N-methyltransferase SETD1; Catalytic component of the SET1 complex that specifically di- and trimethylates 'Lys-4' of histone H3 and is the main di- and trimethyltransferase throughout development. Set1-dependent trimethylation regulates chromatin changes at active promoters that ensure optimal RNA polymerase II release into productive elongation, thereby contributing to optimal transcription.
   
  
 0.866
Su(var)3-9
Histone-lysine N-methyltransferase Su(var)3-9; Histone methyltransferase that specifically trimethylates 'Lys-9' of histone H3 using monomethylated H3 'Lys-9' as substrate. H3 'Lys-9' trimethylation represents a specific tag for epigenetic transcriptional repression by recruiting Su(var)205/HP1 to methylated histones. Mainly functions in heterochromatin regions, thereby playing a central role in the establishment of constitutive heterochromatin at pericentric regions. Involved in heterochromatic gene silencing including the modification of position-effect-variegation. Belongs to the cl [...]
      
 0.800
His4r
Histone H4; Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.
    
 
 0.796
G9a
G9a, isoform B; G9a (G9a) encodes a histone-lysine methyltransferase involved in epigenetic regulation. It contributes to multiple processes including gene expression, dendrite morphogenesis, larval locomotory behavior as well as short and long-term memory.
   
  
 0.789
CCT7
T-complex protein 1 subunit eta; Molecular chaperone; assists the folding of proteins upon ATP hydrolysis. Known to play a role, in vitro, in the folding of actin and tubulin.
   
  
 0.707
E(z)
Histone-lysine N-methyltransferase E(z); Polycomb group (PcG) protein. Catalytic subunit of the Esc/E(z) complex, which methylates 'Lys-9' and 'Lys-27' of histone H3, leading to transcriptional repression of the affected target gene. While PcG proteins are generally required to maintain the transcriptionally repressive state of homeotic genes throughout development, this protein is specifically required during the first 6 hours of embryogenesis to establish the repressed state. The Esc/E(z) complex is necessary but not sufficient for the repression of homeotic target genes, suggesting [...]
   
  
 0.707
ash1
Histone-lysine N-methyltransferase ash1; Trithorax group (TrxG) protein that has histone methyltransferase activity. Specifically trimethylates 'Lys-4' of histone H3 (H3K4me3), a specific tag for epigenetic transcriptional activation. TrxG proteins are generally required to maintain the transcriptionally active state of homeotic genes throughout development. Does not act as a coactivator required for transcriptional activation, but specifically prevents inappropriate Polycomb Group (PcG) silencing of homeotic genes in cells in which they must stay transcriptionally active. Belongs to t [...]
   
  
 0.660
Your Current Organism:
Drosophila melanogaster
NCBI taxonomy Id: 7227
Other names: D. melanogaster, Diptera sp. DNAS-2A9-224646, Sophophora melanogaster, fruit fly
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