The invention relates to a recombinant vector and a recombinant
cell, in particular to a humanized recombinant vector and recombinant
cell for detecting
aromatic hydrocarbon receptor ligands (such as dioxin-type substances). The invention also relates to a purpose of the recombinant vector and
cell in the aspects of biological detection of
aromatic hydrocarbon receptor ligands (such as dioxin-type substances). The DRE-sequence-containing human CYP1A1
gene promoters or partial segments of the promoters are cloned to a basic genetic vector with a
luciferase recording
gene, the obtained recombinant vector and cell have good response on the dioxin; the lowest
detection limit can reach 0.3pM; the humanized recombinant vector and cell are particularly suitable for elevating the influence of the
aromatic hydrocarbon receptor ligands (such as dioxin-type substances) on the
human body health and performing relevant mechanism study.