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
ntcANitrogen-responsive regulatory protein; Required for full expression of proteins subject to ammonium repression. Transcriptional activator of genes subject to nitrogen control. (223 aa)    
Predicted Functional Partners:
asr0485
ORF_ID:asr0485; unknown protein.
  
 
 
 0.950
glnB
Nitrogen regulatory protein P-II; ORF_ID:all2319.
      
 0.922
glnA
Glutamate--ammonia ligase; Involved in nitrogen metabolism via ammonium assimilation. Catalyzes the ATP-dependent biosynthesis of glutamine from glutamate and ammonia; Belongs to the glutamine synthetase family.
      
 0.918
hetR
Heterocyst differentiation protein; Controls heterocyst differentiation. Has both a protease and a DNA-binding activity. Binds the promoter regions of hetR, hepA and patS.
      
 0.918
patS
Heterocyst-inhibiting signaling peptide; Inhibits heterocyst differentiation. Seems to control heterocyst pattern formation through intercellular signaling mechanisms. In Anabaena filaments every 10th vegetative cell terminally differentiates into a heterocyst specialized for nitrogen fixation. Seems to inhibit the formation of adjacent heterocysts. Inhibits the DNA-binding of HetR.
      
 0.883
rbcL
Ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit; RuBisCO catalyzes two reactions: the carboxylation of D- ribulose 1,5-bisphosphate, the primary event in carbon dioxide fixation, as well as the oxidative fragmentation of the pentose substrate in the photorespiration process. Both reactions occur simultaneously and in competition at the same active site. Belongs to the RuBisCO large chain family. Type I subfamily.
      
 0.810
nirA
Nitrite reductase; ORF_ID:alr0607; nirA gene product; Belongs to the nitrite and sulfite reductase 4Fe-4S domain family.
      
 0.792
alr2325
Transcriptional regulator; ORF_ID:alr2325.
  
     0.757
all1035
Transcriptional regulator; ORF_ID:all1035.
  
     0.747
icd
Isocitrate dehydrogenase; ORF_ID:alr1827; icd gene product.
    
 
 0.746
Your Current Organism:
Nostoc sp. PCC7120
NCBI taxonomy Id: 103690
Other names: Anabaena sp. (ATCC 27893), Anabaena sp. (PCC 7120), Anabaena sp. DCC D0672, Anabaena sp. PCC 7120, Anabaena sp. SAG 25.82, Anabaena sp. UTEX B 2576, Anabaena variabilis UTCC 387, N. sp. PCC 7120, Nostoc muscorum ISU, Nostoc sp. AKM24, Nostoc sp. ATCC 27347, Nostoc sp. ATCC 72893, Nostoc sp. DSM 107007, Nostoc sp. Ind43, Nostoc sp. PCC 7120, Nostoc sp. SAG 25.82
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