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. 2005 Sep 23;1(3):e38. doi: 10.1371/journal.pgen.0010038

Figure 4. Pequeño Phenotype Is the Result of a 210-kb Genomic Deletion.

Figure 4

(A) FISH to interphase pq/+ chromosome spreads with a p3pTVA transgene probe (red) locates the transgene insertion on mouse Chromosome 3 between BACs RP23-338I15 (yellow) and RP23-296I12 (green).

(B) The genomic region defined by BAC FISH localization contained six known or predicted genes, one of which, Serpini2, is highly expressed in pancreas and adipose tissue. PCR primer sets A–P (Table S1) were used to characterize and define the identified ~210-kb deletion, indicated by red dashed line. PCR primer sets that correspond to known and predicted exon sequences are indicated by black vertical dashed lines. The genomic deletion encompassed the entire Serpini2 gene locus and exons 4 to 17 of the predicted gene E-62199.1/E-38943.1.