Table 4. Primers.

Primers	Sequence (Bases at restriction sites are in bold case)
ex-N	5′-AGTGCAACTGCAATCGCGATAGCAGTCTTTTTCATGGGTATATCTCCTTC-3′
ex-C	5′-TGCTGGTTTCGCTACCGTAGCGCAGGCTGCTCCGAAAGAGGCCTCTAGACTGCAG-3′
X1	5′-CTCAGACCACCCCGAACTCTGAAGGCTG-3′
X2	5′-CCCAAGCTTT- TAGCCAACGTCAGCAACAG-3′
X3	5′-CCCGATATCATGCAGACTACCCC- GA-3′
X4	5′-CCGCTCGAGGCCAACGTCAGCAACA-3′
Lac1	5′-GGAAACATTATGTTGATCCAATGACCTGTTA-3′
Lac2	5′-CCCACATGTAAACTCTTCCGCTTCCTCT-3′
Lac3	5′-GATA- ACAATTTCACACAAGGAGATATACCCATGG-3′
Lac4	5′-CGCTCACAATTCCACACAACATAATGTTTCCCCC-3′
xarB-N	5′-GCAAGCCATTATATTTAGATTC-3′
xarB- C	5′-CCCCTCGAGCTATTTATTCTCTACCCTTAC-3′
P1	5′-AAGCCATTATATTTAGATTCC-3′
P2	5′-TTTATTCTCTACCCTTACTTC-3′
P3	5′-CAGACTACCCCGAACAG-3′
P4	5′-CATATGTTTTTCTCCTTCTTG-3′
N1	5′-TAAAAGCTTGAAGGCCGCTTC -3′
N2	5′-AGACGGGTCGTAAGTACCGA-3′
C1	5′-TCTGGTGCTACTGACCTGGG-3′
ex-x-x-C	5′-CCCCTCGAGTTAGCCAACGTCAGCAACAG-3′