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
algRTwo-component system, lyttr family, response regulator algr; Positive regulator of the algD gene, which codes for a GDP- mannose dehydrogenase, a key step enzyme in the alginate biosynthesis pathway (248 aa)    
Predicted Functional Partners:
annotation not available
annotation not available
Crp/fnr family transcriptional regulator, cyclic amp receptor protein; Can bind cyclic AMP. Is a global regulator of virulence factor expression and is required for exotoxin A and protease production
Rna polymerase sigma-70 factor, ecf subfamily; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor regulates genes such as algD, involved in alginate biosynthesis
Hydroxymethylbilane synthase; Tetrapolymerization of the monopyrrole PBG into the hydroxymethylbilane pre-uroporphyrinogen in several discrete steps
Regulator of rna polymerase sigma(70) subunit, rsd/algq family protein; The promoter for a critical alginate biosynthetic gene, AlgD, encoding GDP-mannose dehydrogenase, is activated only under conditions reminiscent of the cystic fibrosis lung (i.e. under high osmolarity), and at least two regulatory genes, AlgP and AlgQ, have been implicated in this activation process
Sigma-e factor negative regulatory protein rseb; Negative regulator of the sigma factor AlgU. Plays a role in the differentiation of P.aeruginosa into the alginate-producing form. Inactivation of mucB causes conversion to mucoidy
Phosphomannomutase / phosphoglucomutase; Highly reversible phosphoryltransferase. The phosphomannomutase activity produces a precursor for alginate polymerization, the alginate layer causes a mucoid phenotype and provides a protective barrier against host immune defenses and antibiotics. Also involved in core lipopolysaccaride (LPS) biosynthesis due to its phosphoglucomutase activity. Essential for rhamnolipid production, an exoproduct correlated with pathogenicity . Required for biofilm production. The reaction proceeds via 2 processive phosphoryl transferase reactions; first from enz [...]
Arc-like dna binding domain protein; Functions as both a transcriptional activator and repressor of multiple genes encoding virulence factors as well as genes involved in environmental adaptation Plays a role in alginate production via the activation of AlgD which is the first gene in the alginate biosynthetic operon . Regulates also the transcription of genes responsible for type IV pili localization and twitching motility . Mediates transition of P.aeruginosa biofilm infections from colonizing to chronic biofilms through repression of the psl operon . Represses also its own transcrip [...]
Uroporphyrinogen-iii synthase hemd family protein; Catalyzes cyclization of the linear tetrapyrrole, hydroxymethylbilane, to the macrocyclic uroporphyrinogen III
Your Current Organism:
Pseudomonas aeruginosa
NCBI taxonomy Id: 287
Other names: ATCC 10145, ATCC 10145-U, Bacillus aeruginosus, Bacillus pyocyaneus, Bacterium aeruginosum, Bacterium pyocyaneum, CCEB 481, CCUG 28447, CCUG 29297, CCUG 551, CFBP 2466, CIP 100720, DSM 50071, IBCS 277, IFO 12689, JCM 5962, Micrococcus pyocyaneus, NBRC 12689, NCCB 76039, NCIB 8295, NCIMB 8295, NCTC 10332, NRRL B-771, P. aeruginosa, Pseudomonas polycolor, Pseudomonas pyocyanea, Pseudomonas sp. RV3, RH 815, VKM B-588, bacterium ASFP-37, bacterium ASFP-38, bacterium ASFP-45, bacterium ASFP-46, bacterium ASFP-48
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