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
KrnLD34429p; Keren (Krn) encodes an ligand for the receptor encoded by Egfr that is processed by the products of S and rho. It shows a redundant role with the products of spi in very few tissues. (217 aa)    
Predicted Functional Partners:
Egfr
Epidermal growth factor receptor; Binds to four ligands: Spitz, Gurken, Vein and Argos, which is an antagonist. Transduces the signal through the ras-raf-MAPK pathway. Involved in a myriad of developmental decisions. Critical for the proliferation of imaginal tissues, and for the determination of both the antero-posterior and dorso-ventral polarities of the oocyte. In the embryo, plays a role in the establishment of ventral cell fates, maintenance of amnioserosa and ventral neuroectodermal cells, germ band retraction, cell fate specification in the central nervous system and production [...]
   
 0.978
rho
Protein rhomboid; Acts early in embryonic development to establish position along the dorsoventral axis and then again later to specify the fate of neuronal precursor cells. Involved in EGF receptor signaling; cleaves Spitz to release the active growth factor. Belongs to the peptidase S54 family.
    
 
 0.818
upd3
Unpaired 3 (upd3) encodes a "cytokine" (secreted protein) of the Unpaired family that can bind and activate the JAK-STAT receptor encoded by dome. It is induced in hemocytes or in the intestine upon damage to regulate the repair response in these tissues through JAK-STAT activation.
    
 
 0.686
upd2
Unpaired 2 (upd2) encodes a secreted molecule that acts at a distance as a ligand for the JAK/STAT signal transduction pathway. upd2 mutants are viable due to redundancy with other Upd-family genes.
    
 
 0.676
ru
Roughoid/rhomboid-3; Roughoid (ru) encodes an intra-membrane serine protease localized in the endoplasmic reticulum. It processes Egfr ligands in specific tissues, most notably the eye; Belongs to the peptidase S54 family.
    
 
 0.667
stet
Stem cell tumor, isoform B; Stem cell tumor (stet) encodes a gonad-specific intra-membrane protease of the rhomboid family that activates ligands of the product of Egfr; Belongs to the peptidase S54 family.
    
 
 0.630
esg
Protein escargot; Transcription factor that can both stimulate and repress transcription. Binds to the consensus DNA sequence 5'-A/GCAGGTG-3'. Regulates cell motility and adhesion during tracheal morphogenesis by stimulating transcription of the DE-cadherin gene shg at branch tips, thereby promoting tracheal tube fusion. Maintains diploidy in imaginal cells by inhibiting the transcription of genes required for endoreplication. Required for development of the genital disk and acts as an intrinsic determinant of wing cell fate. The somatic protein is required for maintenance of male germ [...]
   
  
 0.614
upd1
Unpaired 1 (upd1) encodes a secreted glycoprotein that is able to act at a distance as the primary ligand for the JAK/STAT signaling pathway. Although semi-redundant with upd2 and upd3, upd1 depletion results in embryonic lethality with an atypical gap gene-like segmentation phenotype.
    
 
 0.549
S
Star (S) encodes a type II transmembrane protein that facilitates trafficking of transmembrane Egfr ligands from the endoplasmic reticulum to the late secretory compartment. It is involved in growth regulation, cell survival and developmental patterning.
   
   0.537
vn
Vein (vn) encodes a secreted neuregulin-like EGFR ligand. It has weaker intrinsic activity, and a lower receptor affinity, than the TGFalpha-like ligand encoded by spi. It has roles in growth and patterning of tissues including muscle, midgut, ovary, trachea, glia, eye, leg, and wing.
   
 
 0.518
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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