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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[Homology]
Score
HP1bHeterochromatin Protein 1b (HP1b) encodes a chromatin binding protein that negatively regulates transcription and heterochromatin formation. (240 aa)    
Predicted Functional Partners:
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 [...]
   
 
 0.877
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.
   
 0.826
HP1c
Heterochromatin Protein 1c (HP1c) encodes a chromatin binding protein that is involved in telomere capping and transcription regulation and interacts with the zinc-finger proteins encoded by woc and row.
  
 
0.809
Sfmbt
Polycomb protein Sfmbt; Polycomb group (PcG) protein that binds to the Polycomb response elements (PREs) found in the regulatory regions of many genes. PcG proteins act by forming multiprotein complexes, which are required to maintain the transcriptionally repressive state of homeotic genes throughout development. PcG proteins are not required to initiate repression, but to maintain it during later stages of development. They probably act via the methylation of histones, rendering chromatin heritably changed in its expressibility. Necessary but not sufficient to recruit a functional Pc [...]
   
 0.780
cav
Telomere-binding protein cav; Caravaggio (cav) is a fast evolving gene that encodes HP1/ORC Associated Protein (HOAP). HOAP is a DNA binding protein strongly enriched at chromosome ends and required for telomere capping.
   
 
 0.741
Su(var)205
Heterochromatin protein 1; Structural component of heterochromatin, involved in gene repression and the modification of position-effect-variegation. Recognizes and binds histone H3 tails methylated at 'Lys-9', leading to epigenetic repression.
  
 
0.704
woc
Without children (woc) encodes a chromatin-binding factor related to the mammalian MYM-type family of transcription factors. It is involved in telomere capping, regulation of transcription, ecdysone biosynthesis and germline stem cell differentiation.
   
 
 0.691
BEAF-32
Boundary element-associated factor of 32kD (BEAF-32) encodes a DNA-binding protein with binding sites near transcription start sites. Its roles include chromatin domain insulator function, gene regulation and genome organization.
   
  
 0.687
HP4
Heterochromatin protein 4 (HP4) encodes a component of classical heterochromatin that is involved in gene silencing by heterochromatin.
   
  
 0.679
His3:CG31613
Histone H3; 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.
   
 
 0.676
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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