PRD family

(Homeobox gene family)

cluster_1

OTX1, OTX2

cluster_2

PAX2, PAX5, PAX8

cluster_3

PAX3, PAX7

cluster_4

PHOX2A, PHOX2B

cluster_5

PITX1, PITX2, PITX3

cluster_6

PRRX1, PRRX2

cluster_8

SHOX, SHOX2