Type: Pharyngeal interneuron
In MoW:
Male Wiring Project: I2L, I2R
In Wormbase: I2, I2L, I2R
Lineage: AB alpappaapa, AB arapapaapa
Location: Pharynx anterior bulb
Description: Pharyngeal interneurons. At the most anterior end of the subventral nerve cords, I2s have proprioceptive-like free subcuticular endings slightly anterior to those of I1s. They are also coupled by gap junctions to M1 neurons and attach to pm1 muscle at the anterior end. Their posterior processes terminate anterior to the cell bodies of M3 neurons (Albertson and Thomson, 1976).
Neurotransmitter: Express neuropeptide-like proteins NLP-3 and NLP-8 (Nathoo et al., 2001).
Function: Unknown or redundant (Avery and Thomas, 1997).
Receptor Expression: Express glutamate receptor subunits, GLR-7 and GLR-8 (Brockie et al., 2001).