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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.
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query proteins and first shell of interactors
white nodes:
second shell of interactors
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proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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ctxBCholera enterotoxin, B subunit; The B subunit pentameric ring directs the A subunit to its target by binding to the GM1 gangliosides present on the surface of the intestinal epithelial cells. It can bind five GM1 gangliosides. It has no toxic activity by itself. (124 aa)    
Predicted Functional Partners:
ctxA
Cholera enterotoxin, A subunit; The A1 chain catalyzes the ADP-ribosylation of Gs alpha, a GTP-binding regulatory protein, to activate the adenylate cyclase. This leads to an overproduction of cAMP and eventually to a hypersecretion of chloride and bicarbonate followed by water, resulting in the characteristic cholera stool. The A2 chain tethers A1 to the pentameric ring.
   
 0.999
zot
Zona occludens toxin; Increases the permeability of the small intestine mucosa by affecting the structure of intercellular tight junctions (zonula occludens).
     
 0.802
cep
Colonization factor; Similar to; identified by sequence similarity; putative.
     
 0.720
ace
Accessory cholera enterotoxin; Increases short-circuit current in rabbit ileal tissue mounted in Ussing chambers, by increasing the potential difference. Cultures of V.cholerae containing the cloned ace gene cause fluid secretion in ligated rabbit ileal loops.
     
 0.712
VC_1460
Hypothetical protein; Identified by Glimmer2; putative.
     
 0.693
tcpA
Toxin co-regulated pilin; Constituent of pili, which may be involved in adhesion of V.cholerae to the host intestinal epithelium.
      
 0.618
toxR
Cholera toxin transcriptional activator; This transcription activator controls cholera toxin, pilus colonization factor and outer membrane protein expression in V.cholerae. It binds to the 5'-TTTTGAT-3' tandemly repeated DNA sequence in the cholera toxin promoter region. ToxS interacts with the C-terminal periplasmic domain of ToxR, stimulating its activity. It activates transcription at the promoters for tcpI and tcpA and this is presumably via ToxT.
      
 0.559
hlyA
Haemolysin; Bacterial hemolysin that causes cytolysis by forming heptameric pores in target host membranes.
      
 0.548
rtxC
RTX toxin activating protein; Involved in fatty acylation of the protoxin (RtxA) at two internal lysine residues, thereby converting it to the active toxin. The acyl donor is ACP (By similarity).
      
 0.542
rtxA
RTX toxin RtxA; [Multifunctional-autoprocessing repeats-in-toxin]: Precursor of a multifunctional toxin that causes destruction of the actin cytoskeleton by covalent cross-linking of actin and inactivation of Rho GTPases when translocated into the host cytoplasm. Upon translocation into the host cell, undergoes autoprocessing in cis mediated by the peptidase C80 domain (also named CPD domain): the protease activity is activated upon binding inositol hexakisphosphate (InsP6) present at the host cell membrane and delivers the Cysteine protease domain-containing toxin F3 chain to the host [...]
      
 0.541
Your Current Organism:
Vibrio cholerae
NCBI taxonomy Id: 243277
Other names: V. cholerae O1 biovar El Tor str. N16961, Vibrio cholerae El Tor N16961, Vibrio cholerae O1 biovar El Tor str. N16961, Vibrio cholerae O1 biovar eltor str. N16961, Vibrio cholerae serotype O1 biotype El Tor strain N16961, Vibrio cholerae serotype O1 biotype ElTor strain N16961
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