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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PdfPDF precursor-related peptide; Pigment-dispersing factor (Pdf) encodes a secreted biologically active neuropeptide that acts via a specific G-protein-coupled receptor to trigger intracellular signaling. It has a prominent role in the physiology of circadian rhythms, as well as contributing to other processes such as control of flight and digestion. (102 aa)    
Predicted Functional Partners:
Pdfr
PDF receptor; Pigment-dispersing factor receptor (Pdfr) encodes a G-Protein Coupled Receptor in the Family B class of GPCRs (Secretin Receptor-like) that can be activated by the product of Pdf. It has been implicated in regulation of circadian physiology, development of the flight motor system, and regulation of mating.
      
 0.987
pn
EG:152A3.5 protein (Fbgn0003116;pn protein); Prune (pn) encodes a phosphoesterase that localizes to the mitochondrial matrix. It hydrolyzes cAMP and negatively regulates mitochondrial cAMP signaling. It is involved in mtDNA maintenance and eye pigment biosynthesis.
      
 0.892
sNPF
Short neuropeptide F precursor (sNPF) encodes a protein that binds to the product of sNPF-R and activates ERK-Dilps signaling or the PKA-CREB pathway. Its roles include the regulation of cell and organism growth, carbohydrate metabolism, lifespan, feeding behavior, locomotion, circadian rhythm, and sleep.
   
  
 0.892
Clk
Circadian locomoter output cycles protein kaput; Circadian regulator that acts as a transcription factor and generates a rhythmic output with a period of about 24 hours. Oscillates in antiphase to the cycling observed for period (PER) and timeless (TIM). According to reaches peak abundance within several hours of the dark-light transition at ZT0 (zeitgeber 0), whereas describes bimodal oscillating expression with maximum at ZT5 and ZT23. Clock-cycle heterodimers activate cycling transcription of PER and TIM by binding to the E-box (5'-CACGTG-3') present in their promoters. Once induced [...]
      
 0.891
tim
Protein timeless; Required for the production of circadian rhythms. The biological cycle depends on the rhythmic formation and nuclear localization of the TIM-PER complex. Light induces the degradation of TIM, which promotes elimination of PER. Nuclear activity of the heterodimer coordinatively regulates PER and TIM transcription through a negative feedback loop. Behaves as a negative element in circadian transcriptional loop. Does not appear to bind DNA, suggesting indirect transcriptional inhibition. Belongs to the timeless family.
      
 0.891
vri
Vrille, isoform A; Vrille (vri) encodes a bZIP transcription factor acting as an enhancer of dpp phenotypes both in embryo and in wing. It is involved in hair and cell growth and in tracheal development. Vri is a clock-controlled gene acting as a repressor of the products of Clk and cry.
      
 0.837
cyc
Protein cycle; Putative transcription factor involved in the generation of biological rhythms. Activates cycling transcription of Period (PER) and Timeless (TIM) by binding to the E-box (5'-CACGTG-3') present in their promoters.
      
 0.836
timeout
Timeout (timeout) encodes a role in the maintenance of chromosome integrity and in the light synchronization of the adult circadian clock.
      
 0.836
NPF
Neuropeptide F; Integral part of the sensory system that mediates food signaling, providing the neural basis for the regulation of food response; coordinates larval foraging and social behavior changes during development. Required in dopaminergic (DA) neurons that innervate the mushroom body for satiety to suppress appetitive memory performance; a key factor in the internal state of hunger in the brain. NPF neurons coordinately modulate diverse sensory and motor neurons important for feeding, flight, and locomotion. NPF/NPFR pathway exerts its suppressive effect on larval aversion to d [...]
   
  
 0.836
Pdp1
PAR-domain protein 1 (Pdp1) encodes a member of the PAR domain bZip family of sequence-specific transcription factors. it regulates gene expression in muscles and in circadian clock neurons.
      
 0.835
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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