Deleting the LIM-4/SOX-2 adjacent sites or mutating either LIM-4 or SOX-2 site in the LIM-4/SOX-2 element in the 393-bp
odr-1 promoter region eliminated the expression of reporter transgenes in AWB without affecting the expression in AWC (Figs 7B and EV5). This suggests that the LIM-4/SOX-2 sites are necessary for
odr-1 expression in AWB.