STRING 9.05 
C4A [ENSP00000372815]
 
complement component 4A (Rodgers blood group)
CST3 [ENSP00000366124]
 
cystatin C; As an inhibitor of cysteine proteinases, this protein is thought to serve an important physiological role as a local regulator of this enzyme activity
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 0.164).  
Combined Score:
 
0.661
 
Evidence for specific actions:
Binding:yes (score: 0.621)