Abstract
To define the polymorphism and extent of the mouse immunoglobulin kappa (Igk) gene complex, we have analyzed restriction-enzyme digested genomic DNA from 33 inbred strains of mice with labeled DNA probes corresponding to 16 V x protein groups (1 of them previously undescribed) and the J k/C K region (V, variable; J, joining; C, constant). These probes detected between 1 and 25 distinct restriction enzyme fragments (REF) that appeared in up to eight polymorphic patterns, thus defining eight mouse Jgk haplotypes. The investigated portion of the V A repertoire was estimated to encompass between 60 and 120 discernable V k gene-containing REFs. In contrast to mouse V H gene families, several V k gene families defined by these probes appeared to overlap. This observation has implications for V k gene analyses by nucleic acid hybridization and raises the possibility that the V A gene complex is a continuum of related sequences.
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Abbreviations
- C:
-
constant
- Ig:
-
immunoglobulin
- J:
-
joining
- REF:
-
restriction enzyme fragment
- RFLP:
-
restriction fragment length polymorphism
- V:
-
variable
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Koflerz, R., Duchosal, M.A. & Dixon, F.J. Complexity, polymorphism, and connectivity of mouse V k gene families. Immunogenetics 29, 65–74 (1989). https://doi.org/10.1007/BF00395853
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DOI: https://doi.org/10.1007/BF00395853