Expressed in some prostate cancer tissues but not in normal prostate tissue. This gene belongs to a family of genes organized in clustered repeats. They have a high degree of predicted sequence identity, but differ by scattered single nucleotide substitution. Their sequences contain either the antigenic peptide YYWPRPRRY or YRPRPRRY which is recognized by cytotoxic T-cells. Belongs to the GAGE family. The first GAGE nomenclature was based on identified mRNA sequences, but the high identity of the GAGE members made impossible to separate products of paralogous genes from polymorph products. PubMed:18179644 presented a new GAGE gene nomenclature based on the identified genes and their products.