Table 1.

Schematic Overview of the Configuration of the Constant Ig Heavy Chain Gene Loci Found at Both Timepoints of FL 8 as Assessed by Fiber FISH

Alleles	CH configuration
Germline allele 1	Cμ Cδ Cγ3 Cγ1 Cα1 Cγ Cγ Cα2
Germline allele 2	Cμ Cδ Cγ3 Cγ1 Cα1 Cγ Cγ Cγ Cγ Cα2
Translocated allele*	bcl-2 Cγ1 Cα1 Cγ Cγ Cα2
Functional IgM allele 8-’83	VDJ Cμ Cδ Cγ Cγ Cγ Cγ Cα2
Functional IgG allele 8-’83	VDJ Cγ Cγ Cγ Cα2
Functional allele 8-’92	VDJ Cγ Cγ Cγ Cα2

Cγ and Cα genes are numbered when possible.

*The translocated allele was identical at both time points and was derived from germ-line allele 1.