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V lambda 2 rearranges with all functional J lambda segments in the mouse.

S Weiss, J Meyer, M R Wabl

European Journal of Immunology

|August 1, 1985

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Researchers studied 210 hybridomas from mice, identifying unusual rearrangements. Findings suggest the V lambda 2 gene cluster is located upstream of the V lambda 1 cluster, with identical orientation.

Area of Science:

Immunology
Genetics
Molecular Biology

Background:

Hybridomas are crucial tools for monoclonal antibody production.
Understanding immunoglobulin gene rearrangement provides insights into immune system development.

Purpose of the Study:

To analyze lambda-producing hybridomas from a kappa-suppressed mouse.
To investigate the genomic organization of V lambda gene clusters.

Main Methods:

Analysis of 210 lambda-producing hybridomas.
Southern blot analysis to detect gene rearrangements and inversions.

Main Results:

Most hybridomas were classified as lambda 1, lambda 2, or lambda 3.
Four unusual hybridoma lines exhibited V lambda 2 J lambda 1 or V lambda 2 J lambda 3 rearrangements.

Related Experiment Videos

Southern blot analysis ruled out inversion in V lambda 2 C lambda 1-producing lines.

Conclusions:

The V lambda 2 gene cluster is likely located upstream of the V lambda 1 cluster.
Both V lambda 2 and V lambda 1 clusters are oriented in the same direction.
These findings support a simple deletion model for VJ recombination.