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.
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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.
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experimentally determined
co-expression
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gene neighborhood
gene co-occurrence
gene fusions
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ntrCChemotaxis protein CheY; Member of the two-component regulatory system NtrB/NtrC, which controls expression of the nitrogen-regulated (ntr) genes in response to nitrogen limitation. Phosphorylated NtrC binds directly to DNA and stimulates the formation of open promoter-sigma54-RNA polymerase complexes. (484 aa)    
Predicted Functional Partners:
AIL99282.1
ATPase; Derived by automated computational analysis using gene prediction method: Protein Homology.
 0.998
rpoN
RNA polymerase sigma54 factor; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is responsible for the expression of the nitrogen fixation genes (nif operon), glnA and dctA for dicarboxylate transport. The open complex (sigma-54 and core RNA polymerase) serves as the receptor for receipt of the melting signal from the remotely bound activator proteins NifA, NtrC, or DctD for the expression of the regulated proteins.
 
  
 0.949
AIM00302.1
Fis family transcriptional regulator; Derived by automated computational analysis using gene prediction method: Protein Homology.
 
      0.900
glnD
protein-PII uridylyltransferase; Modifies, by uridylylation and deuridylylation, the PII regulatory proteins (GlnB and homologs), in response to the nitrogen status of the cell that GlnD senses through the glutamine level. Under low glutamine levels, catalyzes the conversion of the PII proteins and UTP to PII-UMP and PPi, while under higher glutamine levels, GlnD hydrolyzes PII-UMP to PII and UMP (deuridylylation). Thus, controls uridylylation state and activity of the PII proteins, and plays an important role in the regulation of nitrogen metabolism.
  
   
 0.823
phoB
Chemotaxis protein CheY; Derived by automated computational analysis using gene prediction method: Protein Homology.
  
 
 0.814
AIL99281.1
tRNA-dihydrouridine synthase; Catalyzes the synthesis of 5,6-dihydrouridine (D), a modified base found in the D-loop of most tRNAs, via the reduction of the C5-C6 double bond in target uridines; Belongs to the dus family.
  
  
 0.804
AIL99284.1
ATPase; Derived by automated computational analysis using gene prediction method: Protein Homology.
 
 0.768
glnA
Forms a homododecamer; forms glutamine from ammonia and glutamate with the conversion of ATP to ADP and phosphate; also functions in the assimilation of ammonia; highly regulated protein controlled by the addition/removal of adenylyl groups by adenylyltransferase from specific tyrosine residues; addition of adenylyl groups results in inactivation of the enzyme; Derived by automated computational analysis using gene prediction method: Protein Homology.
  
  
 0.767
phoR
Histidine kinase; Derived by automated computational analysis using gene prediction method: Protein Homology.
 
 
 0.753
glnE
Bifunctional glutamine-synthetase adenylyltransferase/deadenyltransferase; Involved in the regulation of glutamine synthetase GlnA, a key enzyme in the process to assimilate ammonia. When cellular nitrogen levels are high, the C-terminal adenylyl transferase (AT) inactivates GlnA by covalent transfer of an adenylyl group from ATP to specific tyrosine residue of GlnA, thus reducing its activity. Conversely, when nitrogen levels are low, the N-terminal adenylyl removase (AR) activates GlnA by removing the adenylyl group by phosphorolysis, increasing its activity. The regulatory region of [...]
  
   
 0.730
Your Current Organism:
Sinorhizobium meliloti
NCBI taxonomy Id: 382
Other names: ATCC 9930, CCUG 27879, CFBP 5561, DSM 30135, Ensifer meliloti, Ensifer sp. AC50a, Ensifer sp. AC50e, HAMBI 2148, IAM 12611, ICMP 12623, IFO 14782, JCM 20682, LMG 6133, LMG:6133, NBRC 14782, NCAIM B.01520, NRRL L-45, NZP 4027, Rhizobium meliloti, Rhizobium meliloti (megaplasmid pRME41B SYM), Rhizobium meliloti (plasmid pRmeGR4b), Rhizobium meliloti plasmid pRmeGR4b, Rhizobium sp. AC50e, S. meliloti
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