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
pqqEPyrroloquinoline quinone biosynthesis protein PqqE; Catalyzes the cross-linking of a glutamate residue and a tyrosine residue in the PqqA protein as part of the biosynthesis of pyrroloquinoline quinone (PQQ). (380 aa)    
Predicted Functional Partners:
pqqC
Pyrroloquinoline quinone biosynthesis protein PqqC; Ring cyclization and eight-electron oxidation of 3a-(2-amino- 2-carboxyethyl)-4,5-dioxo-4,5,6,7,8,9-hexahydroquinoline-7,9- dicarboxylic-acid to PQQ.
 
  
 0.982
pqqB
Pyrroloquinoline quinone biosynthesis protein PqqB; May be involved in the transport of PQQ or its precursor to the periplasm; Belongs to the PqqB family.
 
  
 0.982
pqqD
IMG reference gene:2512955818; PFAM: Coenzyme PQQ synthesis protein D (PqqD); TIGRFAM: coenzyme PQQ biosynthesis protein PqqD.
 
  
 0.973
RSP_2583
PQQ-dependent catabolism-associated beta-propeller protein; IMG reference gene:2512954526; PFAM: 3-carboxy-cis,cis-muconate lactonizing enzyme; TIGRFAM: PQQ-dependent catabolism-associated beta-propeller protein; 40-residue YVTN family beta-propeller repeat; extended by 8 aa.
 
  
 0.853
xoxF
Putative pqq dehydrogenase protein; IMG reference gene:2512954521; PFAM: Pyrrolo-quinoline quinone coenzyme N-terminus; Pyrrolo-quinoline quinone coenzyme C-terminus; PQQ enzyme repeat; TIGRFAM: PQQ-dependent dehydrogenase, methanol/ethanol family.
 
  
 0.779
pqqA
IMG reference gene:2512955821; PFAM: PqqA family; TIGRFAM: coenzyme PQQ precursor peptide PqqA.
       0.727
RSP_2587
ABC multidrug efflux transporter, inner membrane subunit; IMG reference gene:2512954530; PFAM: ABC-2 type transporter; TIGRFAM: alcohol ABC transporter, permease protein.
 
    0.578
RSP_2590
Putative secreted protein; IMG reference gene:2512954533; PFAM: Sulphur oxidation protein SoxZ.
 
     0.575
RSP_2582
Amino acid/amide ABC transporter substrate-binding protein, HAAT family; IMG reference gene:2512954525; TIGRFAM: ABC transporter, substrate binding protein, PQQ-dependent alcohol dehydrogenase system; extended by 25 aa.
  
    0.550
RSP_2589
Zn-dependent hydrolase, glyoxylase; IMG reference gene:2512954532; PFAM: Metallo-beta-lactamase superfamily; truncated by 17 aa.
 
    0.528
Your Current Organism:
Rhodobacter sphaeroides 241
NCBI taxonomy Id: 272943
Other names: R. sphaeroides 2.4.1, Rhodobacter sphaeroides 2.4.1, Rhodobacter sphaeroides ATCC 17023, Rhodobacter sphaeroides ATH 2.4.1, Rhodobacter sphaeroides str. 2.4.1, Rhodobacter sphaeroides strain 2.4.1
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