TABLE 1.

Sequences of 3′ ends of coding-end breaks

Gene segment	Sequencea	No. of sequences
Jκ1	gtggACGTTCGGTGGAGGCACCAA 3′
	CACCTGCAAGCCACCTCCGTGGTT 5′
3′ end	TGCAAGCCACCTCCGTGGTT 5′	3
	CCTGCAAGCCACCTCCGTGGTT 5′	3
	CACCTGCAAGCCACCTCCGTGGTT 5′	4
	TGCACCTGCAAGCCACCTCCGTGGTT 5′	1
	GGTGCACCTGCAAGCCACCTCCGTGGTT 5′	1
JH2	actactttgaCTACTGGGGCCAA 3′
	TGATGAAACTGATGACCCCGGTT 5′
3′ end	AACTGATGACCCCGGTT 5′	2
	TGAAACTGATGACCCCGGTT 5′	2
	ATGAAACTGATGACCCCGGTT 5′	3
	TGATGAAACTGATGACCCCGGTT 5′	2
	CATGATGAAACTGATGACCCCGGTT 5′	1
	ATCATGATGAAACTGATGACCCCGGTT 5′	1

^aLM-PCR products generated with the 3′-overhanging linker (Fig. 7) were cloned and subjected to DNA sequence analysis. The duplex sequence for each locus is shown, as in Fig. 4, with 5′-deleted sequences in lowercase type. Palindromic 3′ extensions are underlined.