Domain	Number of genes
zf-TRAF	360
zf-TRAF_2	4
zf-TRM13_CCCH	5
zf-U1	15
zf-U11-48K	20
zf-UBP	38
zf-UBP_var	1
zf-UBR	23
zf_UBZ	2
ZFYVE21_C	2
zf_ZIC	7
zf-ZPR1	6
zhit-1	1
zhit-2	1
zhit-3	1
zhp-3	1
ZIC2	3
ZIC3	3
ZIC4	3
ZIC5	3