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The sequences of four embryonic mouse immunoglobulin VH genes have been compared. All genes end at codon 98 and code for a hydrophobic signal peptide of 19 residues interrupted at codon -4 by an intron of 83 base pairs. Substitutions occur in all gene segments but at a significantly higher frequency in the hypervariable regions. The data suggest an(More)
Five closely related immunoglobulin VH genes (subgroup II) were compared by sequencing of several kb of DNA. In three of the genes homology greater than 75% was found along an area of 4 kb that includes the coding region. The homology in flanking regions is only slightly lower than that in the coding sequences. Two other genes, which are located on the same(More)
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