Genes having at least one occurence of the motif AGTGCGT in their 3' untranslated region. The motif represents putative target (that is, seed match) of human mature miRNA hsa-miR-521 (v7.1 miRBase). Link http://www.broadinstitute.org/gsea/msigdb/cards/AGTGCGT_MIR521.