The CH-CSLEX-1 H chain was similarly amplified using 4 primers: CSLEX-1Hf (ATGGG ATGGAGCTGGATCTTTCTC), CSLEX-1Hr (GAG GGAACACTGAAGGTCCTTTTGTTGAAGCTGAG GAGACTGTGAGAGTGGTGCCTTGGCC), IgG1Hf (GGCCAAGGCACCACTCTCACAGTCTCCTCA GCTTCAACAAAAGGACCTTCAGTGTTCCCTC), and IgGHr (TTACTTGCCCGGGCTCAGGCTCA GTG).