Fusion protein amino acids 1315-1607 (cytoplasmic C-terminus) of human LAR (also known as Leukocyte antigen related, Leukocyte common antigen-related phosphatase, Receptor-type tyrosine-protein phosphatase F and PTPRF, accession number P10586) Rat: 97% identity (286/293 amino acids identical) Mouse: 97% identity (285/293 amino acids identical) >80% identity with PTPRD and PTPRS >50% identity with PTPRM and PTPRK