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.
Knowledge-based Evidence
from curated databases
textmining
Assay-based Predictions
experimentally determined
co-expression
Genomic Predictions
gene neighborhood
gene co-occurrence
gene fusions
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[Homology]
Score
EKF03635.1Non-canonical purine NTP pyrophosphatase, RdgB/HAM1 family; Pyrophosphatase that catalyzes the hydrolysis of nucleoside triphosphates to their monophosphate derivatives, with a high preference for the non-canonical purine nucleotides XTP (xanthosine triphosphate), dITP (deoxyinosine triphosphate) and ITP. Seems to function as a house-cleaning enzyme that removes non-canonical purine nucleotides from the nucleotide pool, thus preventing their incorporation into DNA/RNA and avoiding chromosomal lesions. Belongs to the HAM1 NTPase family. (194 aa)    
Predicted Functional Partners:
guaA
GMP synthase protein; Catalyzes the synthesis of GMP from XMP.
 
 
 0.979
rph
tRNA nucleotidyltransferase; Phosphorolytic 3'-5' exoribonuclease that plays an important role in tRNA 3'-end maturation. Removes nucleotide residues following the 3'-CCA terminus of tRNAs; can also add nucleotides to the ends of RNA molecules by using nucleoside diphosphates as substrates, but this may not be physiologically important. Probably plays a role in initiation of 16S rRNA degradation (leading to ribosome degradation) during starvation.
 
    0.974
purA
Adenylosuccinate synthetase; Plays an important role in the de novo pathway of purine nucleotide biosynthesis. Catalyzes the first committed step in the biosynthesis of AMP from IMP; Belongs to the adenylosuccinate synthetase family.
 
 0.959
EKF03541.1
KEGG: npu:Npun_R5588 4.1e-194 IMP dehydrogenase family protein K00088; Psort location: Cytoplasmic, score: 8.96.
 
 0.951
ndk
Nucleoside diphosphate kinase; Major role in the synthesis of nucleoside triphosphates other than ATP. The ATP gamma phosphate is transferred to the NDP beta phosphate via a ping-pong mechanism, using a phosphorylated active-site intermediate; Belongs to the NDK family.
  
 0.932
purH
KEGG: npu:Npun_R6316 3.4e-229 phosphoribosylaminoimidazolecarboxamide formyltransferase/IMP cyclohydrolase K00602; Psort location: Cytoplasmic, score: 8.96.
   
 
 0.928
murI
Glutamate racemase; Provides the (R)-glutamate required for cell wall biosynthesis.
      0.913
EKE98579.1
Acid phosphatase SurE; KEGG: ana:alr3139 2.3e-104 surE; stationary phase survival protein SurE K03787; Psort location: Cytoplasmic, score: 8.96.
    
  0.900
surE-2
Acid phosphatase SurE; Nucleotidase that shows phosphatase activity on nucleoside 5'-monophosphates; Belongs to the SurE nucleotidase family.
    
  0.900
EKF00869.1
Toxin-antitoxin system, toxin component, GNAT family; KEGG: dat:HRM2_17220 1.3e-37 putative acetyltransferase.
 
      0.879
Your Current Organism:
Tolypothrix sp. PCC7601
NCBI taxonomy Id: 1188
Other names: Calothrix sp. PCC 7601, Fremyella diplosiphon ACMM 396, Fremyella diplosiphon IAM M-100, Fremyella diplosiphon UTEX B 481, Microchaete diplosiphon UTEX B 481, T. sp. PCC 7601, Tolypothrix (Calothrix) sp. PCC 7601, Tolypothrix sp. PCC 7601, Tolypothrix sp. PCC 7601 = UTEX B 481
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