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
qcrCProbable ubiquinol-cytochrome C reductase QcrC (cytochrome C subunit); Cytochrome b subunit of the cytochrome bc1 complex, an essential component of the respiratory electron transport chain required for ATP synthesis. The bc1 complex catalyzes the oxidation of ubiquinol and the reduction of cytochrome c in the respiratory chain. The bc1 complex operates through a Q-cycle mechanism that couples electron transfer to generation of the proton gradient that drives ATP synthesis. (280 aa)    
Predicted Functional Partners:
ctaE
Rv2193, (MTCY190.04), len: 203 aa. Probable ctaE,cytochrome c oxidase polypeptide III (cox3), with strong similarity to others e.g. COX3_SYNY3|Q06475 (29.8% identity in 225 aa overlap).
 
 
 0.999
qcrA
Probable rieske iron-sulfur protein QcrA; Iron-sulfur subunit of the cytochrome bc1 complex, an essential component of the respiratory electron transport chain required for ATP synthesis. The bc1 complex catalyzes the oxidation of menaquinol and the reduction of cytochrome c in the respiratory chain. The bc1 complex operates through a Q-cycle mechanism that couples electron transfer to generation of the proton gradient that drives ATP synthesis.
 
 0.999
qcrB
Probable ubiquinol-cytochrome C reductase QcrB (cytochrome B subunit); Cytochrome b subunit of the cytochrome bc1 complex, an essential component of the respiratory electron transport chain required for ATP synthesis. The bc1 complex catalyzes the oxidation of ubiquinol and the reduction of cytochrome c in the respiratory chain. The bc1 complex operates through a Q-cycle mechanism that couples electron transfer to generation of the proton gradient that drives ATP synthesis. The cytochrome b subunit contains two ubiquinol reactive sites: the oxidation (QP) site and the reduction (QN) site.
 
 0.999
ctaF
Possible conserved integral membrane protein; Part of cytochrome c oxidase, its function is unknown. Belongs to the cytochrome c oxidase bacterial subunit CtaF family.
 
 
 0.999
ctaC
Probable transmembrane cytochrome C oxidase (subunit II) CtaC; Subunits I and II form the functional core of the enzyme complex. Electrons originating in cytochrome c are transferred via heme a and Cu(A) to the binuclear center formed by heme a3 and Cu(B) (By similarity).
 
 
 0.999
Rv2876
Rv2876, (MTCY274.07), len: 104 aa. Possible conserved transmembrane protein, equivalent (but longer 16 aa) to Q9CBU2|ML1584 possible conserved membrane protein from Mycobacterium leprae (84 aa), FASTA scores: opt: 444,E(): 8.3e-26, (73.85% identity in 88 aa overlap). A core mycobacterial gene; conserved in mycobacterial strains (See Marmiesse et al., 2004).
   
   0.999
ctaD
Probable cytochrome C oxidase polypeptide I CtaD (cytochrome AA3 subunit 1); Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits 1-3 form the functional core of the enzyme complex. CO I is the catalytic subunit of the enzyme. Electrons originating in cytochrome c are transferred via the copper A center of subunit 2 and heme A of subunit 1 to the bimetallic center formed by heme A3 and copper B (By similarity).
 
 
 0.999
lpqE
Rv3584, (MTV024.02), len: 182 aa. Possible lpqE,conserved lipoprotein, equivalent to Q9ZBM7|MLCB1450.02|LPQE|ML0319 putative lipoprotein from Mycobacterium leprae (183 aa), FASTA scores: opt: 722, E(): 6.2e-37, (63.45% identity in 175 aa overlap). Also similar in part to Q9KK69 exported protein 996A010 (fragment) from Mycobacterium avium (41 aa), FASTA scores: opt: 180, E(): 0.00012, (69.25% identity in 39 aa overlap); and Q9L0R0|SCD8A.04c putative lipoprotein from Streptomyces coelicolor (241 aa), FASTA scores: opt: 127, E(): 0.86,(27.15% identity in 173 aa overlap). Equivalent to AAK [...]
   
 
 0.962
tuf
Probable iron-regulated elongation factor TU Tuf (EF-TU); This protein promotes the GTP-dependent binding of aminoacyl- tRNA to the A-site of ribosomes during protein biosynthesis.
  
 
 0.941
sodC
Periplasmic superoxide dismutase [Cu-Zn] SodC; Destroys radicals which are normally produced within the cells and which are toxic to biological systems. May play a role in favoring mycobacterial survival in phagocytes (By similarity).
   
   0.871
Your Current Organism:
Mycobacterium tuberculosis H37Rv
NCBI taxonomy Id: 83332
Other names: M. tuberculosis H37Rv, Mycobacterium sp. H37Rv, Mycobacterium tuberculosis str. H37Rv, Mycobacterium tuberculosis strain H37Rv
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