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Tight regulation of retinoic acid (RA) distribution in the embryo is critical for normal morphogenesis. The RA-metabolizing enzymes Cyp26A1 and Cyp26B1 are believed to play important roles in protecting certain embryonic tissues from inappropriate RA signaling. We have cloned the murine Cyp26B1 cDNA and compared its expression pattern to that of Cyp26A1(More)
Retinoic acid (RA), an active metabolite of vitamin A, is a crucial signaling molecule involved in tissue morphogenesis during embryonic development. RA distribution and concentration is precisely regulated during embryogenesis by balanced complementary activities of RA synthesizing (RALDH) and metabolizing (CYP26) enzymes. Here, we describe the(More)
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