AATK and neuroblastoma: A precise function for these receptors has yet to be defined, although LMR1 was identified as a potential marker of apoptosis [http://www.ncbi.nlm.nih.gov/pubmed/9444961?dopt=AbstractPlus], giving rise to the name AATYK (Apoptosis‐associated tyrosine kinase); while over‐expression induces differentiation in neuroblastoma cells [http://www.ncbi.nlm.nih.gov/pubmed/10837911?dopt=AbstractPlus].