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
spiProtein spitz; Ligand for the EGF receptor (Gurken). Involved in a number of unrelated developmental choices, for example, dorsal-ventral axis formation, glial migration, sensory organ determination, and muscle development. It is required for photoreceptor determination. (234 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 [...]
   
 0.999
aos
Protein giant-lens; Regulates cell determination; development of ommatidia and optic lobe. Is a signaling molecule involved in the process of axon pathfinding in the eye. Part of the Ras pathway regulating programmed cell death in pupal eyes; activated by lozenge (lz). Antagonist for the Egfr receptor (gurken). Inhibits Egfr signaling without interacting directly with the receptor, but instead by sequestering the Egfr- activating ligand spitz (spi).
   
 0.986
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.
   
 
 0.976
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.
    
 
 0.851
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.
    
 
 0.844
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.
    
 
 0.801
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.
    
 
 0.796
rho-4
Rhomboid-4, isoform A; Rhomboid-4 (rho-4) encodes a member of the rhomboid superfamily of intramembrane serine proteases, which cleave to release proteins from the membrane. It processes the transmembrane EGF ligands encoded by spi, Krn, and grk. Its activity is directly and dramatically stimulated by calcium; Belongs to the peptidase S54 family.
   
 
 0.738
dpp
Protein decapentaplegic; Required during oogenesis for eggshell patterning and dorsal/ventral patterning of the embryo. Acts as a morphogen during embryogenesis to pattern the dorsal/ventral axis, specifying dorsal ectoderm and amnioserosa cell fate within the dorsal half of the embryo; this activity is antagonized by binding to sog and tsg. Induces the formation of visceral mesoderm and the heart in early embryos. Required later in embryogenesis for dorsal closure and patterning of the hindgut. Also functions postembryonically as a long-range morphogen during imaginal disk development [...]
    
 
 0.678
pnt
ETS-like protein pointed; ETS transcription factor with a prominent role during development of the eye and the nervous system. Required for glial- neuronal cell interactions at the ventral midline which are necessary for the proper elaboration of commissures in the embryonic CNS. [Isoform P1]: Required for normal EGFR-induced photoreceptor development. Following transcriptional activation by isoform P2, acts as a constitutive activator of transcription, leading to induction of target genes essential for photoreceptor development. In larval brains, involved in the maintenance of type II [...]
   
  
 0.671
Your Current Organism:
Drosophila melanogaster
NCBI taxonomy Id: 7227
Other names: D. melanogaster, Diptera sp. DNAS-2A9-224646, Sophophora melanogaster, fruit fly
Server load: low (32%) [HD]