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:
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Experiments
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[Homology]
Score
EAP91135.1COG0347 Nitrogen regulatory protein PII; Belongs to the P(II) protein family. (112 aa)    
Predicted Functional Partners:
EAP91317.1
Ammonium transporter; COG0004 Ammonia permease.
 0.998
EAP89064.1
Ammonium transporter; COG0004 Ammonia permease.
 0.998
glnD
PII uridylyl-transferase; 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.
 
 
 0.991
EAP91004.1
Nitrogen regulation protein, NtrB signal transduction histidinekinase; COG3852 Signal transduction histidine kinase, nitrogen specific.
  
 0.989
EAP91136.1
COG0174 Glutamine synthetase.
 
  
 0.864
EAP89125.1
Membrane protein; COG3329 Predicted permease.
   
 
 0.712
nnrE
Hypothetical protein; Bifunctional enzyme that catalyzes the epimerization of the S- and R-forms of NAD(P)HX and the dehydration of the S-form of NAD(P)HX at the expense of ADP, which is converted to AMP. This allows the repair of both epimers of NAD(P)HX, a damaged form of NAD(P)H that is a result of enzymatic or heat-dependent hydration. Catalyzes the epimerization of the S- and R-forms of NAD(P)HX, a damaged form of NAD(P)H that is a result of enzymatic or heat-dependent hydration. This is a prerequisite for the S-specific NAD(P)H-hydrate dehydratase to allow the repair of both epi [...]
       0.631
EAP90511.1
Glutamate synthase, large subunit; COG0067 Glutamate synthase domain 1.
     
 0.555
EAP88834.1
Glutamate-ammonia-ligase adenylyltransferase, putative; 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 GlnE binds the sig [...]
 
 
 
 0.544
nadE
NAD(+) synthetase; Catalyzes the ATP-dependent amidation of deamido-NAD to form NAD. Uses L-glutamine as a nitrogen source.
     
 0.504
Your Current Organism:
Oceanicaulis sp. HTCC2633
NCBI taxonomy Id: 314254
Other names: O. sp. HTCC2633
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