STRING 9.05 
ITPR1 [ENSP00000405934]
 
inositol 1,4,5-triphosphate receptor, type 1; Intracellular channel that mediates calcium release from the endoplasmic reticulum following stimulation by inositol 1,4,5- trisphosphate
ITPR3 [ENSP00000363435]
 
inositol 1,4,5-triphosphate receptor, type 3; Receptor for inositol 1,4,5-trisphosphate, a second messenger that mediates the release of intracellular calcium
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 0.621).  
Association in Curated Databases:  
none / insignificant.
    
Co-Mentioned in PubMed Abstracts:   yes (score 0.926).  
Combined Score:
 
0.637
 
Note: the two proteins have some sequence similarity (3837 bits over 2662 amino acids. click here to see the alignment).
Evidence for specific actions:
Binding:yes (score: 0.800)