No.

Set

Subfamily

# sequence

1

Nuclear receptors (NR)

NR1: thyroid hormone like

50

2

NR2: HNF4-like

36

3

NR3: estrogen like

37

4

NR4: nerve growth factor IB-like

7

5

NR5: fushitarazu-F1 like

12

6

NR6: germ cell nuclear factor like

5

7

NR0: knirps and DAX like

12

8

Non-nuclear receptors (Non-NR)

N/A

500