unc (uncoordinated)-29, which encodes a non-alpha receptor subunit, is expressed in AVA and RIB. Expressed also in sub-lateral neurons (possibly SMB/ Ds, SIBs or SIAs).
cho-1 is expressed in terminally differentiated AIA interneurons. Reporter fusions to the unc-17/cha-1 locus and to the choline reuptake transporter cho-1 are expressed in IL2 neurons.