IN-SITU HYBRIDIZATION LOCALIZES THE HUMAN OTF3 TO CHROMOSOME 6P21.3-]P22 AND OTF3L TO 12P13

Otf-3 (Octamer-binding transcription factor 3) is an octamer binding p rotein encoded by the murine gene Otf-3. Otf-3 belongs to a multigenic family and maps to the mouse Chromosome 17 between the Q and T region s within the major histocompatibility complex (MHC). We report the map ping of the human homologue: OTF3, to human chromosome 6p21.3 --> p22 within or close to the human MHC class I region. Furthermore, one OTF3 -like copy (OTF3L) is localized to 12p13.