STRING 9.05 
RAB4A [ENSP00000355651]
RAB4A, member RAS oncogene family; Protein transport. Probably involved in vesicular traffic (By similarity)
RAB7A [ENSP00000265062]
RAB7A, member RAS oncogene family; Involved in late endocytic transport. Contributes to the maturation of phagosomes (acidification)
Evidence suggesting a functional link:
Neighborhood in the Genome:  
none / insignificant.
Gene Fusions:  
none / insignificant.
Cooccurence Across Genomes:  
none / insignificant.
none / insignificant.
Experimental/Biochemical Data:   yes (score 0.846).  
Association in Curated Databases:  
none / insignificant.
Co-Mentioned in PubMed Abstracts:   yes (score 0.220).  
Combined Score:
Note: the two proteins have some sequence similarity (143.5 bits over 206 amino acids. click here to see the alignment).
Evidence for specific actions:
Binding:yes (score: 0.621)