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speE speE bioA bioA potF potF potD potD sapA sapA puuP puuP puuA puuA guaA guaA
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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.
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query proteins and first shell of interactors
white nodes:
second shell of interactors
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proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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Edges represent protein-protein associations
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Known Interactions
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experimentally determined
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gene fusions
gene co-occurrence
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textmining
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Your Input:
speESpermidine synthase (putrescine aminopropyltransferase); Involved in the biosynthesis of polyamines which play a significant role in the structural and functional organization in the chromoid of E.coli by compacting DNA and neutralizing negative charges. Catalyzes the irreversible transfer (ping-pong mechanism) of a propylamine group from the amino donor S-adenosylmethioninamine (decarboxy-AdoMet) to putrescine (1,4-diaminobutane) to yield spermidine. Cadaverine (1,5-diaminopentane) and spermidine can also be used as the propylamine acceptor. (288 aa)
bioA7,8-diaminopelargonic acid synthase, PLP-dependent; Catalyzes the transfer of the alpha-amino group from S- adenosyl-L-methionine (SAM) to 7-keto-8-aminopelargonic acid (KAPA) to form 7,8-diaminopelargonic acid (DAPA). It is the only animotransferase known to utilize SAM as an amino donor; Belongs to the class-III pyridoxal-phosphate-dependent aminotransferase family. BioA subfamily. (429 aa)
potFPutrescine ABC transporter periplasmic binding protein; Required for the activity of the bacterial periplasmic transport system of putrescine. Polyamine binding protein. Belongs to the bacterial solute-binding protein PotD/PotF family. (370 aa)
potDSpermidine/putrescine ABC transporter periplasmic binding protein; Required for the activity of the bacterial periplasmic transport system of putrescine and spermidine. Polyamine binding protein; Belongs to the bacterial solute-binding protein PotD/PotF family. (348 aa)
sapAAntimicrobial peptide transport ABC transporter periplasmic binding protein; Not part of a putrescine export system. Very similar to a S.typhimurium protein implicated in antimicrobial peptide resistance, but the SapBCDF operon in E.coli is implicated in putrescine export. (547 aa)
puuPPutrescine importer; Involved in the uptake of putrescine. Belongs to the amino acid-polyamine-organocation (APC) superfamily. (461 aa)
puuAGlutamate--putrescine ligase; Involved in the breakdown of putrescine via the biosynthesis of gamma-L-glutamylputrescine. It is able to use several diamines, spermidine and spermine. Absolutely essential to utilize putrescine as both nitrogen and carbon sources and to decrease the toxicity of putrescine, which can lead to inhibition of cell growth and protein synthesis; Belongs to the glutamine synthetase family. (472 aa)
guaAGMP synthetase (glutamine aminotransferase); Catalyzes the synthesis of GMP from XMP. (525 aa)
Your Current Organism:
Escherichia coli K12
NCBI taxonomy Id: 511145
Other names: E. coli str. K-12 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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