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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Gene Fusion
Cooccurrence
Coexpression
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[Homology]
Score
Hen1Small RNA 2'-O-methyltransferase; Methyltransferase that adds a 2'-O-methyl group at the 3'-end of selected small RNAs. Mediates 2'-O-methylation of piRNAs, single- stranded siRNAs and long hairpin RNA genes (hpRNAs). Methylation protects the 3'-end of small RNAs from tailing and trimming and could constitute a recognition signal for appropriate argonaute machineries. (391 aa)    
Predicted Functional Partners:
piwi
Protein piwi; Acts via the piwi-interacting RNA (piRNA) metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi proteins and governs the methylation and subsequent repression of transposons. Directly binds piRNAs, a class of 24 to 30 nucleotide RNAs that are generated by a Dicer-independent mechanism and are primarily derived from transposons and other repeated sequence elements. In ovarian somatic cells, mediates silencing of transposable elements at the transcriptional level in a mael-dependent manner. [...]
   
 
 0.902
zuc
Mitochondrial cardiolipin hydrolase; Cardiolipin hydrolase present at the mitochondrial outer membrane required for piRNA metabolic process. Acts by catalyzing the hydrolysis of cardiolipin (diphosphatidylglycerol) to form phosphatidate (phosphatidic acid or PA) at the mitochondrial outer membrane surface, promoting the piRNA metabolic process. Plays a key role in primary biogenesis of piRNAs and is required during oogenesis to repress transposable elements and prevent their mobilization. piRNAs mediate the repression of transposable elements during meiosis by forming complexes compose [...]
   
  
 0.898
Dcr-2
Dicer-2, isoform A; Dicer-2 (Dcr-2) encodes a member of the RNase III family of double-stranded RNA-specific endonucleases. It acts in the RNAi pathway by cutting long dsRNA into siRNAs. It helps defend flies against viral infection, particularly RNA viruses. It also processes long, partially double-stranded endogenous transcripts (hairpin RNAs) into endo-siRNAs.
    
 
 0.892
aub
Protein aubergine; Acts via the piwi-interacting RNA (piRNA) metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi proteins and governs the methylation and subsequent repression of transposons. Directly binds piRNAs, a class of 24 to 30 nucleotide RNAs that are generated by a Dicer-independent mechanism and are primarily derived from transposons and other repeated sequence elements. In ovary, associates predominantly with antisense piRNAs that contain uridine at their 5' end. In testis, associates with [...]
      
 0.867
AGO1
Argonaute-1, isoform A; Argonaute-1 (AGO1) encodes an Argonaute/Piwi family protein, which interacts with microRNAs to form miRNA-induced silencing complexes (miRISCs). miRISCs are guided to target and repress mRNAs either by transcript destabilisation, translational inhibition, or both.
      
 0.835
r2d2
R2d2, isoform A; R2d2 (r2d2) encodes a double-stranded RNA-binding protein. It interacts with the product of Dcr-2 to form the core of RISC loading complex, which recruits duplex siRNA to the RISC.
   
  
 0.829
Nbr
Exonuclease mut-7 homolog; Possesses 3'-5' exoribonuclease activity. Required for 3'-end trimming of AGO1-bound miRNAs, in particular multiple-isoform miRNAs, which represents a critical step in miRNA maturation. Belongs to the mut-7 family.
      
 0.817
spn-E
Probable ATP-dependent RNA helicase spindle-E; Probable ATP-binding RNA helicase which plays a central role during spermatogenesis and oogenesis by repressing transposable elements and preventing their mobilization, which is essential for the germline integrity. Acts via the piRNA metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi and govern the methylation and subsequent repression of transposons. Involved in the repression of LTR retrotransposon copia. Also involved in telomere regulation by repres [...]
   
  
 0.758
Gasz
GH09064p; Gasz (Gasz) encodes an essential factor for primary piRNA biogenesis. It is predicted to stimulate cleavage of piRNA precursors by the endonuclease encoded by zuc via the recruitment of piRNA precursors and biogenesis factors to the mitochondrial surface.
   
  
 0.755
loqs
Loquacious, isoform B; Loquacious (loqs) encodes a double-stranded RNA binding protein with multiple splicing isoforms. loqs-PB and loqs-PA associate with the product of Dcr-1 to facilitate processing of precursor miRNA into mature miRNA, whereas loqs-PD interacts with the product of Dcr-2 to enhance processing of dsRNA into siRNA.
      
 0.720
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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