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. 2012 Jun 22;7(6):e39298. doi: 10.1371/journal.pone.0039298

Figure 1. The guinea pig IgH locus in scaffold 54.

Figure 1

The guinea pig IgH locus length is approximately 4,302 kb from the most 5′ VH segment (VH-290p) to the most 3′ end of α gene in genomic scaffold 54. Filled bars: potentially functional VH genes; open bars: VH pseudogenes and V-p; DH: diversity genes; JH: joining genes; μ: IgM coding gene; δ: IgD fragment; γ: IgG coding gene; ε: IgE coding gene and α: IgA coding gene. VH and DH genes are numbered based on the families and their order. The number before the dash (VHn) indicates the family, while the number after dash represents the genomic position. JH genes are numbered based on the order of their locations in the locus. Double slashes indicate gaps >10 kb. The unidirectional arrowheads above δ gene segments in scaffold 54 indicate that its direction is opposite to the other heavy chain constant genes transcriptional direction. The scale does not apply the upper frame diagram.