ERVW-1 and brain neoplasm: We generated, in total, 1587 cDNA sequences; 975 for gag and 612 for env. Among those, 327 cDNAs were generated from brain tumor samples, 374 cDNAs were generated from normal brain, and brains with bipolar and schizophrenic condition, and 666 cDNAs were generated from testicular samples.