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We have isolated and characterized a cDNA for a novel Per-Arnt/AhR-Sim basic helix-loop-helix (bHLH-PAS) factor that interacts with the Ah receptor nuclear translocator (Arnt), and its predicted(More)
BACKGROUND Vertebrates have numerous lateral asymmetries in the position of their organs, but the molecular basis for the determination of left-right (L-R) asymmetries remains largely unknown.(More)