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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:
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Gene Fusion
Cooccurrence
Coexpression
Experiments
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[Homology]
Score
GNBP3Gram-negative bacteria binding protein 3 (GNBP3) encodes a hemolymphatic protein involved in the sensing of glucan (a fungal cell wall component) upstream of the Toll pathway. (490 aa)    
Predicted Functional Partners:
modSP
Modular serine protease non-catalytic chain; Serine protease that plays a key role in innate immunity by activating the Toll pathway in response to infection with Gram-positive bacteria and fungi. During Gram- positive infection, acts downstream of PGRP-SA and upstream of Grass and Spz, and therefore appears to function in a pathway that links detection of Gram-positive lysine-type peptidoglycans to Toll activation. Functions in a separate pathway to the psh-mediated activation of the Toll pathway. Belongs to the peptidase S1 family.
   
 0.985
psh
Serine protease persephone; Serine protease that plays a key role in innate immunity in response to Gram-positive bacterial and fungal proteases. Acts as a component of the Toll pathway upstream of protease spz processing enzyme SPE and Tl ligand spz. Nec regulates the cascade by inhibiting psh ; Belongs to the peptidase S1 family. CLIP subfamily.
   
 
 0.920
PGRP-SA
Peptidoglycan-recognition protein SA; Peptidoglycan-recognition protein that plays a key role in innate immunity by binding to peptidoglycans (PGN) of Gram-positive bacteria and activating the Toll pathway upstream of spz activating enzyme SPE. Has no activity against Gram-negative bacteria and fungi. Shows some partial redundancy with PRPGP-SD in Gram-positive bacteria recognition. May act by forming a complex with GNBP1 that activates the proteolytic cleavage of Spatzle and the subsequent activation of Toll pathway. Binds to diaminopimelic acid-type tetrapeptide PGN (DAP-type PGN) an [...]
   
  
 0.915
SPE
Spaetzle-processing enzyme heavy chain; Endopeptidase which plays a key role in innate immunity by cleaving Tl ligand spz and thereby activating the Toll pathway in response to fungal and Gram-positive bacterial infections. Acts downstream of pathogen recognition receptors PGRP-SA and GNBP1 and protease grass in response to Gram-positive bacterial infection. Acts downstream of protease psh in response to fungal infection. Belongs to the peptidase S1 family. CLIP subfamily.
   
 
 0.859
PGRP-SD
Peptidoglycan-recognition protein SD; Peptidoglycan-recognition protein that plays a key role in innate immunity by binding to peptidoglycans (PGN) of Gram-positive bacteria and activating the Toll pathway. Has no activity against on Gram-negative bacteria and fungi. Shows some partial redundancy with PRPGP-SA in Gram-positive bacteria recognition. May act by activating the proteolytic cleavage of Spatzle and the subsequent activation of Toll pathway. Recognizes S.aureus PGN; Belongs to the N-acetylmuramoyl-L-alanine amidase 2 family.
   
  
 0.826
spz
Protein spaetzle C-106; Spatzle (spz) encodes a secreted protein which, after cleavage by an extracellular serine protease (encoded by ea or SPE), can induce the dimerization of the product of Tl, and the subsequent activation of the Toll pathway. It contributes to function of the Toll signaling cascade, which plays a key role in various developmental and immune processes, notably embryonic dorso-ventral patterning and regulation of antimicrobial peptides.
   
 
 0.805
imd
Protein immune deficiency; Essential for the imd/NF-kappa-B (Imd) humoral and epithelial immune response to Gram-negative bacteria. Functions as an adapter protein that transduces immunity signals from the activation of pathogen recognition receptors (PRRs) by bacterial infection to the Imd signaling pathway. Binding of diaminopimelic acid-type (DAP-type) bacterial peptidoglycans (PGN) causes multimerization or clustering of PGRP receptors which activate the Imd cascade probably by recruiting imd, Fadd and Dredd to the receptor complex. Once in proximity, Dredd cleaves imd in a Fadd-de [...]
      
 0.790
Dif
Dorsal-related immunity factor Dif; Mediates an immune response in larvae. DIF binds to the kappa-B consensus sequence 5'-GGRNNYYCC-3', located in the enhancer region of the immunity gene CECA1. Involved in the melanization immune response to bacterial challenge, possibly by acting in a Toll signaling pathway that downregulates Spn27A in response to infection. Part of a signaling pathway involving NF-kappa-B (rel) and Toll-related receptors, that functions in the apoptosis of unfit cells during cell competition. May be part of a NF-kappa-B and Tollo signaling cascade that regulates dev [...]
   
 
 0.686
PGRP-LC
Peptidoglycan-recognition protein LC; Major activator of the imd/Relish pathway and is likely to encode a pattern recognition molecule for the humoral immune response. Required for Relish processing and nuclear translocation following proteolytic cleavage. Involved in the response to lipopolysaccharide (LPS) and peptidoglycan of Gram-negative bacteria. The different isoforms probably display different recognition capabilities to various microbial patterns. [Isoform x]: Mediates the response to LPS, peptidoglycan and Gram-negative bacteria; Belongs to the N-acetylmuramoyl-L-alanine amid [...]
   
  
 0.685
sphinx1
Sphinx1 (sphinx1) encodes a protein related to the serine protease homolog, which is strongly expressed in the male accessory gland.
    
 
 0.683
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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