Immunoglobulin Genomics in the Guinea Pig Figure 2. The guinea pig IgH locus in scaffold 75. The guinea pig IgH locus length is approximately 2,177 kb from the most VH (VH-217p) to the most end (VH-1p) in scaffold 75. Filled bars: potentially functional VH genes; open bars: VH pseudogenes. The scale does not apply the upper frame diagram. doi:10.1371/journal.pone.0039298.g002 Figure 3. Alignment of the guinea pig IgD remnants with other mammalian IgD domains. Amino acid residues that are identical to the top counterpart in every panel are shown as dots; Gaps and missing data are indicated by hyphens. doi:10.1371/journal.pone.0039298.g003 PLoS ONE | www.plosone.org 3 June 2012 | Volume 7 | Issue 6 | e39298