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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Sp7Serine protease 7; Serine protease which, by cleaving and activating prophenoloxidase (PPO1) after immune challenge, plays an essential role in the melanization immune response to septic wounding. May function in diverse Hayan-dependent PPO1- activating cascades that are negatively controlled by different serpin proteins; Spn27A in the hemolymph and Spn77BA in the trachea. Important for the innate immune response to fungi. Regulation of melanization and PPO1 activation appears to be largely independent of the Toll signaling pathway. (391 aa)    
Predicted Functional Partners:
Spn27A
Serine protease inhibitor 27A; Serine protease inhibitor that functions in embryonic dorsoventral patterning and the melanization immune response. Regulates dorsoventral axis formation during early development by inhibiting the serine protease easter, and is therefore important for restricting activity of the Toll signaling pathway to the ventral part of the embryo. Also plays an essential role in the melanization immune response to both physical wounding and septic infection using certain bacteria and fungi. Negatively regulates the Hayan- dependent prophenoloxidase 1 (PPO1)-activatin [...]
   
 
 0.752
PPO1
Prophenoloxidase 1 (PPO1) encodes a protein produced by crystal cells (a type of hemocyte cell) and is involved in the melanization reaction, notably upon wounding. It is thought to be activated by proteolytic cleavage by the serine protease encoded by Hayan.
    
 
 0.628
Ilp7
Insulin-like peptide 7 (Ilp7) encodes a secreted insulin-like peptide that binds to the receptor encoded by InR to activate the insulin signaling pathway. It is expressed by small populations of neurons and plays roles in female egg-site selection, sleep duration, and nutrient-dependent food intake and tracheal growth.
      
 0.602
MP1
Melanization protease 1; Serine protease which plays an essential role in the melanization immune response by acting downstream of sp7 to activate prophenoloxidase (PPO1). May function in diverse Hayan-dependent PPO1-activating cascades that are negatively controlled by different serpin proteins; Spn27A in the hemolymph and Spn77BA in the trachea. Regulation of melanization and PPO1 activation appears to be largely independent of the Toll signaling pathway. Belongs to the peptidase S1 family. CLIP subfamily.
  
 
 
0.581
Spn77Ba
Serine protease inhibitor 77Ba; Serine protease inhibitor which plays an essential role in regulating the tracheal melanization immune response to bacterial and fungal infection. Acts by negatively regulating a protease cascade involving Mp1 and Sp7, that functions in the activation of the Hayan-phenoloxidase (PPO1) cascade ; Belongs to the serpin family.
   
 
 0.558
Spn28Dc
Serine protease inhibitor 28Dc; Serine protease inhibitor which is required for pupal viability and plays an essential role in regulating the melanization reaction. Inhibits spontaneous melanization and appears to be involved in the melanization immune response to physical wounding in larvae and adults. Acts by negatively regulating the Hayan-phenoloxidase (PPO1) cascade in the hemolymph and possibly the trachea. May function by controlling the initial release of the activated form of PPO1, phenoloxidase (PO) and thus maintains PO availability for processes such as wound response and p [...]
   
 
 0.535
Jon25Biii
Jonah 25Biii; Serine-type endopeptidase activity; endopeptidase activity. It is involved in the biological process described with: proteolysis; Belongs to the peptidase S1 family.
  
     0.509
PPO2
Prophenoloxidase 2 (PPO2) encodes a protein stored in large crystals in the crystal cells (a type of hemocyte cell) that is involved in the melanization reaction. It contributes to melanization around wounds and wasp encapsulation and is thought to be activated by proteolytic cleavage by the product of Hayan.
      
 0.497
Spn88Ea
Serine protease inhibitor 88Ea; Serine protease inhibitor with activity toward trypsin. Negatively regulates the Toll signaling pathway and suppresses the expression of the antifungal peptide drosomycin. Its negative regulation of the Toll signaling pathway also results in the inhibition of the melanization immune response via the phenoloxidase (PPO1) cascade. Essential for unfolding and expansion of the wings after emergence from the pupal case. May regulate the Toll pathway by blocking the proteolysis of the Toll ligand spz.
   
 
 0.474
CG33127
IP10114p; Serine-type endopeptidase activity. It is involved in the biological process described with: proteolysis; Belongs to the peptidase S1 family.
  
     0.469
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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