STRING 9.05 
GRB2 [ENSP00000339007]
 
growth factor receptor-bound protein 2; Adapter protein that provides a critical link between cell surface growth factor receptors and the Ras signaling pathway
CDKN1B [ENSP00000228872]
 
cyclin-dependent kinase inhibitor 1B (p27, Kip1); Important regulator of cell cycle progression. Involved in G1 arrest. Potent inhibitor of cyclin E- and cyclin A-CDK2 complexes. Positive regulator of cyclin D-dependent kinases such as CDK4. Regulated by phosphorylation and degradation events
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).  
Association in Curated Databases:  
none / insignificant.
    
Co-Mentioned in PubMed Abstracts:   yes (score 0.854).  
Combined Score:
 
0.976
 
Evidence for specific actions:
Binding:yes (score: 0.924)