Table 2.

Exons composition and the homologous relationship of them among the DHRS4 gene cluster.

*	Exon 1	Exon 2	Exon 3			Exon 4	Exon 5	Exon 6	Exon 7	Exon 8
DHRS4	161	178	102			71	52	135	56	534
DHRS4L2	258	178	102			71	52	134	56	531
**	Exon 1	Exon 2	Exon 3	Exon 4	Exon 5	Exon 6	Exon 7	Exon 8	Exon 9	Exon 10
DHRS4L1	128	178	54	50	7	71	52	135	56	518

* corresponding exon number of DHRS4, DHRS4L2, ** corresponding exon number of DHRS4L1