STRING 9.05 
ALX4 [ENSP00000332744]
ALX homeobox 4; Transcription factor involved in skull and limb development
HOXB6 [ENSP00000225648]
homeobox B6; Sequence-specific transcription factor which is part of a developmental regulatory system that provides cells with specific positional identities on the anterior-posterior axis
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 0.357).  
Association in Curated Databases:  
none / insignificant.
Co-Mentioned in PubMed Abstracts:   yes (score 0.115).  
Combined Score:
Note: the two proteins have some sequence similarity (77.2 bits over 199 amino acids. click here to see the alignment).
Evidence for specific actions:
Binding:yes (score: 0.357)