Abstract Background We previously showed that the envelope (env) sequence of a human endogenous retrovirus (HERV)-W locus on chromosome Xq22. 3 is transcribed in human peripheral blood mononuclear cells. The env open reading frame (ORF) of this locus is interrupted by a premature stop at codon 39. but otherwise harbors a long ORF for an N-terminally truncated 475 amino acid Env protein. https://crowssportes.shop/product-category/cleaners/