Domain	Number of genes
ZC21.1	1
ZC21.3	1
ZC21.4	1
ZC21.5	1
ZC21.6	1
ZC21.7	1
ZC21.9	1
ZC239.11	1
ZC239.13	1
ZC239.18	1
ZC262.2	1
ZC266.2	1
ZC308.2	1
ZC308.3	1
ZC308.4	1
ZC328.3	1
ZC334.5	1
ZC373.3	1
ZC376.2	1
ZC376.6	1