STRING 9.05 
F13B [ENSP00000356382]
coagulation factor XIII, B polypeptide; The B chain of factor XIII is not catalytically active, but is thought to stabilize the A subunits and regulate the rate of transglutaminase formation by thrombin
FGG [ENSP00000336829]
fibrinogen gamma chain; Fibrinogen has a double function: yielding monomers that polymerize into fibrin and acting as a cofactor in platelet aggregation
Evidence suggesting a functional link:
Neighborhood in the Genome:  
none / insignificant.
Gene Fusions:  
none / insignificant.
Cooccurence Across Genomes:  
none / insignificant.
Co-Expression:   none, but putative homologs are coexpressed in other species (score 0.057).  
Experimental/Biochemical Data:   yes (score 0.621).  
Association in Curated Databases:   yes (score 0.900).  
Co-Mentioned in PubMed Abstracts:   yes (score 0.170).  
Combined Score:
Evidence for specific actions:
Binding:yes (score: 0.621)