PMID: 698188Jul 25, 1978Paper

Immunoglobulin genes in DNA restriction fragments

Biochemistry
R WilsonU Storb

Abstract

We have investigated the organization of immunoglobulin genes in mice. High molecular weight DNA from myelomas and Krebs ascites cells was cleaved with EcoRI restriction endonuclease and fractionated using preparative agarose gel electrophoresis. Each fraction was then hybridized to an immunoglobulin mRNA or a cDNA transcribed from the mRNA. In two series of experiments, one with a kappa chain probe (MOPC 41 mRNA), the other with a lambda chain probe (SAPC 178 mRNA), we analyzed a variety of myeloma DNAs and Krebs DNA. In contrast to previously reported findings (Tonegawa, S., et al. (1976) Cold Spring Harbor Symp. Quant. Biol. 41, 877), we did not observe any unique restriction map pattern in the DNA from cells which exress a given immunoglobulin gene. We also found that restriction fragments containing c region genes do not appear to transpose, while DNA sequences corresponding to other portions of the kappa and lambda mRNAs do in some cases.

Citations

Oct 30, 1979·Biochemistry·R WilsonU Storb

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