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Restriction map of the chromosomal DNA fragment from FB188 which carries the HDAH gene. EcoRI, DraII, KspI, and PstI each revealed a single band hybridizing with the pBOCA3.5 probe. The region of DNA sequence analysis tallies with the PstI fragment. The HDAH open reading frame is depicted as a gray-shaded box with an arrow pointing from the start to the stop codon.
