Schematic of the 0.25 Mb of genomic sequence carried out in the HH critical region. Those genes located on top of the line are transcribed from left to right (centromere to telomere), those below the line are transcribed from right to left (telomere to centromere). The positions and exon–intron structure of all four novel genes, cDNA 37, cDNA 24, cDNA 27 (cDNA25 is a smaller variant of cDNA27), and cDNA 22B, are denoted. Two versions of the gene structure are shown. The longer version represents both the coding and noncoding exons and the shorter version shows only the coding exons. The positions of the histone genes and the ESTs are also shown. The asterik denotes a pseudogene. The 0.25 Mb of genomic sequence has been deposited in GenBank (accession no.U91328). The sequence of the individual cDNAs have also been deposited in GenBank (accession nos: cDNA 37, U90551; cDNA 24, U60319; cDNA 27,U90547; cDNA 22B, U90544.
