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algU algU mucA mucA mucB mucB mucC mucC mucD mucD prc prc amrZ amrZ algD algD alg8 alg8 alg44 alg44 algK algK algE algE algG algG algX algX algL algL algI algI algJ algJ algF algF algA algA algW algW algR algR algZ algZ algB algB PA5484 PA5484
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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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colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
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empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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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
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textmining
co-expression
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algUSigma factor AlgU; 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. (193 aa)
mucAAnti-sigma factor MucA; Negative regulator of the sigma factor AlgU. Plays a role in the differentiation of P.aeruginosa into the alginate-producing form. Inactivation of mucA causes a switch from the non-mucoid to mucoid state resulting in constitutive expression of alginate biosynthetic genes. (194 aa)
mucBNegative regulator for alginate biosynthesis MucB; 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. (316 aa)
mucCPositive regulator for alginate biosynthesis MucC; Product name confidence: Class 1 (Function experimentally demonstrated in P. aeruginosa). (151 aa)
mucDSerine protease MucD precursor; Product name confidence: Class 1 (Function experimentally demonstrated in P. aeruginosa); Belongs to the peptidase S1C family. (474 aa)
prcPeriplasmic tail-specific protease; Product name confidence: Class 2 (High similarity to functionally studied protein); Belongs to the peptidase S41A family. (698 aa)
amrZAlginate and motility regulator Z; 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 transcription [...] (108 aa)
algDGDP-mannose 6-dehydrogenase AlgD; Catalyzes the oxidation of guanosine diphospho-D-mannose (GDP-D-mannose) to GDP-D-mannuronic acid, a precursor for alginate polymerization. The alginate layer causes a mucoid phenotype and provides a protective barrier against host immune defenses and antibiotics. (436 aa)
alg8Alginate biosynthesis protein Alg8; Processive enzyme that polymerizes GDP-mannuronic acid. Belongs to the glycosyltransferase 2 family. (494 aa)
alg44Alginate biosynthesis protein Alg44; Required for alginate biosynthesis. Belongs to the Alg44 family. (389 aa)
algKAlginate biosynthetic protein AlgK precursor; May be involved in the polymerization of mannuronate to alginate. (475 aa)
algEAlginate production outer membrane protein AlgE precursor; Has non-porin-like, channel-forming properties and probably functions as an alginate permeability pore. (490 aa)
algGAlginate-c5-mannuronan-epimerase AlgG; Catalyzes the epimerization of beta-D-mannuronate to alpha-L- guluronate during the synthesis of the linear polysaccharide alginate. In addition, is part of a periplasmic protein complex that protects alginate from degradation by AlgL by channeling the newly formed alginate polymer through a scaffold that transfers the alginate polymer through the periplasmic space to the outer membrane secretin AlgE. (543 aa)
algXAlginate biosynthesis protein AlgX; Plays two roles in the biosynthesis of the exopolysaccharide alginate: protects alginate from degradation as the polymer traverses the periplasm, and also plays a role in its O-acetylation. Acetylation of alginate causes the cells in the biofilm to adhere better to lung epithelium, form microcolonies, and resist the effects of the host immune system and/or antibiotics. Displays a low acetylesterase activity in vitro using a pseudosubstrate, 3-carboxyumbelliferyl acetate. Probably has acetyltransferase activity in vivo. Belongs to the AlgX family. (474 aa)
algLPoly(beta-d-mannuronate) lyase precursor AlgL; Catalyzes the depolymerization of alginate by cleaving the beta-1,4 glycosidic bond between two adjacent sugar residues via a beta-elimination mechanism. May serve to degrade mislocalized alginate that is trapped in the periplasmic space. Acts preferentially on non-acetylated alginate or its precursor mannuronan. Is able to catalyze cleavage adjacent to either mannuronate or guluronate residues in alginate. Exhaustive digestion of alginate by AlgL generates dimeric and trimeric products. In addition to its enzymatic function, AlgL appears [...] (367 aa)
algIAlginate o-acetyltransferase AlgI; Together with AlgJ and AlgF, forms an inner membrane complex which probably interacts with the alginate polymerization-transport complex and adds acetyl groups at the O-2 and O-3 positions of mannuronate residues. Acetylation of alginate is important for the architecture of biofilms and increases resistance to opsonic killing in the host. (520 aa)
algJAlginate o-acetyltransferase AlgJ; Together with AlgI and AlgF, forms an inner membrane complex which probably interacts with the alginate polymerization-transport complex and adds acetyl groups at the O-2 and O-3 positions of mannuronate residues. Acetylation of alginate is important for the architecture of biofilms and increases resistance to opsonic killing in the host. (391 aa)
algFAlginate o-acetyltransferase AlgF; Together with AlgI and AlgJ, forms an inner membrane complex which probably interacts with the alginate polymerization-transport complex and adds acetyl groups at the O-2 and O-3 positions of mannuronate residues. Acetylation of alginate is important for the architecture of biofilms and increases resistance to opsonic killing in the host. (216 aa)
algAPhosphomannose isomerase / guanosine 5'-diphospho-D-mannose pyrophosphorylase; Produces a precursor for alginate polymerization. The alginate layer provides a protective barrier against host immune defenses and antibiotics; Belongs to the mannose-6-phosphate isomerase type 2 family. (481 aa)
algWAlgW protein; Product name confidence: Class 1 (Function experimentally demonstrated in P. aeruginosa). (389 aa)
algRAlginate biosynthesis regulatory protein 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)
algZAlginate biosynthesis protein AlgZ/FimS; Product name confidence: Class 1 (Function experimentally demonstrated in P. aeruginosa). (358 aa)
algBTwo-component response regulator AlgB; Member of the two-component regulatory system AlgB/KinB involved in regulation of alginate biosynthesis genes. Positive regulator of the alginate biosynthetic gene AlgD. (449 aa)
PA5484Probable two-component sensor; Product name confidence: Class 3 (Function proposed based on presence of conserved amino acid motif, structural feature or limited sequence similarity to an experimentally studied gene). (595 aa)
Your Current Organism:
Pseudomonas aeruginosa
NCBI taxonomy Id: 208964
Other names: P. aeruginosa PAO1, Pseudomonas aeruginosa PAO1, Pseudomonas sp. PAO1
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