STRINGSTRING
PHO80 protein (Saccharomyces cerevisiae) - STRING interaction network
"PHO80" - Cyclin, interacts with cyclin-dependent kinase Pho85p in Saccharomyces cerevisiae
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:
some 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 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
Cooccurence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
PHO80Cyclin, interacts with cyclin-dependent kinase Pho85p; regulates the response to nutrient levels and environmental conditions, including the response to phosphate limitation and stress-dependent calcium signaling; Cyclin partner of the cyclin-dependent kinase (CDK) PHO85. Negatively regulates the expression of phosphate- starvation-responsive genes under phosphate-rich conditions. The PHO80-PHO85 cyclin-CDK holoenzyme phosphorylates and inactivates the transcription factor PHO4, by preventing its association with the transcription factor PHO2 and the nuclear import receptor PSE1, and b [...] (293 aa)    
Predicted Functional Partners:
PHO85
Cyclin-dependent kinase, with ten cyclin partners; involved in regulating the cellular response to nutrient levels and environmental conditions and progression through the cell cycle; Cyclin-dependent protein kinase (CDK) catalytic subunit that regulates multiple cell cycle and metabolic processes in response to nutrient availability. Associates with different cyclins, that control kinase activity, substrate specificity and subcellular location of the kinase. Favorable growth conditions always result in activated cyclin-CDK complexes. Regulates metabolic processes when associated with [...] (305 aa)
     
  0.999
PHO81
Cyclin-dependent kinase (CDK) inhibitor, regulates Pho80p-Pho85p and Pcl7p-Pho85p cyclin-CDK complexes in response to phosphate levels; inhibitory activity for Pho80p-Pho85p requires myo-D-inositol heptakisphosphate (IP7) generated by Vip1p; Inhibits the kinase activity of the cyclin-CDKs PHO80- PHO85 and PCL7-PHO85 under low-phosphate conditions (1178 aa)
     
  0.998
PHO4
Basic helix-loop-helix (bHLH) transcription factor of the myc-family; activates transcription cooperatively with Pho2p in response to phosphate limitation; binding to ’CACGTG’ motif is regulated by chromatin restriction, competitive binding of Cbf1p to the same DNA binding motif and cooperation with Pho2p; function is regulated by phosphorylation at multiple sites and by phosphate availability; Transcriptional activator that regulates the expression of repressible phosphatase under phosphate starvation conditions. Binds to the upstream activating sequence (UAS) of several phosphatase e [...] (312 aa)
       
  0.997
CDC28
Catalytic subunit of the main cell cycle cyclin-dependent kinase (CDK); alternately associates with G1 cyclins (CLNs) and G2/M cyclins (CLBs) which direct the CDK to specific substrates; This protein is essential for the completion of the start, the controlling event, in the cell cycle. More than 200 substrates have been identified (298 aa)
       
  0.982
PCL8
Cyclin, interacts with Pho85p cyclin-dependent kinase (Cdk) to phosphorylate and regulate glycogen synthase, also activates Pho85p for Glc8p phosphorylation; Cyclin partner of the cyclin-dependent kinase (CDK) PHO85. Together with cyclin PCL10, negatively controls glycogen accumulation under favorable growth conditions. Involved in phosphorylation and negative regulation of glycogen synthase GSY2. Also has minor GLC8 kinase activity (492 aa)
         
  0.962
CTK1
Catalytic (alpha) subunit of C-terminal domain kinase I (CTDK-I); phosphorylates both RNA pol II subunit Rpo21p to affect transcription and pre-mRNA 3’ end processing, and ribosomal protein Rps2p to increase translational fidelity; similar to the Dr /.../la dCDK12 and human CDK12 and probably CDK13; Catalytic subunit of the CTDK-I complex, which hyperphosphorylates the C-terminal heptapeptide repeat domain (CTD) of the largest RNA polymerase II subunit. CTDK-I phosphorylates ’Ser-5’ if the CTD substrate is not phosphorylated at ’Ser-5’, but will phosphorylate ’Ser-2’ of a CTD substrate [...] (528 aa)
       
  0.958
KIN28
Serine/threonine protein kinase, subunit of the transcription factor TFIIH; involved in transcription initiation at RNA polymerase II promoters; Catalytic component of the TFIIK complex (KIN28-CCL1 dimer) which is the protein kinase component of transcription factor IIH (TFIIH) and phosphorylates the C-terminal domain of RNA polymerase II during transition from transcription to elongation after preinitiation complex (PIC) formation, thereby positively regulating transcription. TFIIH (or factor B) is essential for both basal and activated transcription, and is involved in nucleotide exc [...] (306 aa)
     
 
  0.956
CLN2
G1 cyclin involved in regulation of the cell cycle; activates Cdc28p kinase to promote the G1 to S phase transition; late G1 specific expression depends on transcription factor complexes, MBF (Swi6p-Mbp1p) and SBF (Swi6p-Swi4p); Essential for the control of the cell cycle at the G1/S (start) transition. Interacts with the CDC28 protein kinase to form MPF (545 aa)
       
  0.955
PCL5
Cyclin, interacts with and phosphorylated by Pho85p cyclin-dependent kinase (Cdk), induced by Gcn4p at level of transcription, specifically required for Gcn4p degradation, may be sensor of cellular protein biosynthetic capacity; Cyclin partner of the cyclin-dependent kinase (CDK) PHO85. Positively controls degradation of transcription factor GCN4 under favorable growth conditions. The PCL5-PHO85 cyclin-CDK holoenzyme phosphorylates GCN4, which is required for its degradation by the E3 ubiquitin ligase complex SCF(Cdc4). Amino acid starvation reduces PCL5-PHO85-associated GCN4 kinase ac [...] (229 aa)
       
  0.953
CTK2
Beta subunit of C-terminal domain kinase I (CTDK-I), which phosphorylates both RNA pol II subunit Rpo21p to affect transcription and pre-mRNA 3’ end processing, and ribosomal protein Rps2p to increase translational fidelity; Cyclin subunit of the CTDK-I complex, which hyperphosphorylates the C-terminal heptapeptide repeat domain (CTD) of the largest RNA polymerase II subunit. CTDK-I phosphorylates ’Ser-5’ if the CTD substrate is not phosphorylated at ’Ser-5’, but will phosphorylate ’Ser-2’ of a CTD substrate if ’Ser-5’ is already phosphorylated. CTDK-I is also more reactive toward subs [...] (323 aa)
         
  0.948
Your Current Organism:
Saccharomyces cerevisiae
NCBI taxonomy Id: 4932
Other names: Candida robusta, Pachytichospora, S. cerevisiae, Saccharomyces, Saccharomyces capensis, Saccharomyces cerevisiae, Saccharomyces italicus, Saccharomyces oviformis, Saccharomyces uvarum var. melibiosus, lager beer yeast, yeast
Server load: low (3%) [HD]