STRING protein interaction network
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:
some 3D structure is known or predicted
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
protein homology
Your Input:
Gene Fusion
chaASodium exporter that functions mainly at alkaline pH. Can also function as a potassium/proton and calcium/proton antiporter at alkaline pH. Does not play a major role in calcium export. ECO:0000269|PubMed:8021217, ECO:0000269|PubMed:8496184, (366 aa)    
Predicted Functional Partners:
Might be a regulator of the sodium-potassium/proton antiporter ChaA
Na(+)/H(+) antiporter that extrudes sodium in exchange for external protons. Catalyzes the exchange of 2 H(+) per Na(+). Can mediate sodium uptake when a transmembrane pH gradient is applied. Active at alkaline pH. Activity is strongly down-regulated below pH 6.5
Na(+)/H(+) antiporter that extrudes sodium in exchange for external protons. Catalyzes the exchange of 3 H(+) per 2 Na(+). Has a high affinity for sodium, but can also transport lithium. Activity is weakly pH-dependent. Essential for regulation of intracellular pH under alkaline conditions. ECO:0000269|PubMed:7929345, ECO:0000269|PubMed:8019504,
Inner membrane protein YrbG; Protein involved in calcium:sodium antiporter activity
Confers resistance to acriflavine, chloramphenicol, norfloxacin, ethidium bromide and TPP
Efflux pump driven by the proton motive force. Confers resistance to a broad spectrum of chemically unrelated drugs. Confers resistance to a diverse group of cationic or zwitterionic lipophilic compounds such as ethidium bromide, tetraphenylphosphonium, rhodamine, daunomycin, benzalkonium, rifampicin, tetracycline, puromycin, and to chemically unrelated, clinically important antibiotics such as chloramphenicol, erythromycin, and certain aminoglycosides and fluoroquinolones. Overexpression results in isopropyl-beta-D- thiogalactopyranoside (IPTG) exclusion and spectinomycin sensitivity. [...]
May play a role in antibiotic biosynthesis
Catalyzes the cleavage of glutathione into 5-oxo-L-proline and a Cys-Gly dipeptide. Acts specifically on glutathione, but not on other gamma-glutamyl peptides
Plays a role in the positive regulation of NhaA.
Pore-forming subunit of a potassium efflux system that confers protection against electrophiles. Catalyzes K(+)/H(+) antiport. Can also export rubidium, lithium and sodium. Rule:MF_01413, ECO:0000269|PubMed:17679694,
Your Current Organism:
Escherichia coli K12 MG1655
NCBI taxonomy Id: 511145
Other names: E. coli str. K-12 substr. MG1655, Escherichia coli K12 substr. MG1655, Escherichia coli MG1655, Escherichia coli str. K-12 substr. MG1655, Escherichia coli str. K12 substr. MG1655, Escherichia coli str. MG1655, Escherichia coli strain MG1655
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