STRING 9.05 
STK39 [ENSP00000348278]
 
serine threonine kinase 39 (STE20/SPS1 homolog, yeast); May act as a mediator of stress-activated signals
WNK4 [ENSP00000246914]
 
WNK lysine deficient protein kinase 4; Regulates the activity of the thiazide-sensitive Na-Cl cotransporter, SLC12A3, by phosphorylation which appears to prevent membrane trafficking of SLC12A3. Also inhibits the renal K(+) channel, KCNJ1, via a kinase-independent mechanism by which it induces clearance of the protein from the cell surface by clathrin-dependent endocytosis. WNK4 appears to act as a molecular switch that can vary the balance between NaCl reabsorption and K(+) secretion to maintain integrated homeostasis (By similarity)
Evidence suggesting a functional link:
Neighborhood in the Genome:  
none / insignificant.
    
Gene Fusions:  
none / insignificant.
    
Cooccurence Across Genomes:  
none / insignificant.
    
Co-Expression:  
none / insignificant.
    
Experimental/Biochemical Data:   yes (score 0.846). In addition, putative homologs were found interacting in other species (score 0.091).  
Association in Curated Databases:  
none / insignificant.
    
Co-Mentioned in PubMed Abstracts:   yes (score 0.920).  
Combined Score:
 
0.901
 
Note: the two proteins have some sequence similarity (111.4 bits over 429 amino acids. click here to see the alignment).
Evidence for specific actions:
Binding:yes (score: 0.969)  
Post-translational modification:yes (score: 0.800)