Type: Sensory neuron (chemosensory)
In MoW: PHA
Connectivity:
- In WormWiring: PHAL_h, PHAL_m, PHAR_m
- In Nemanode: PHA
In Wormbase: PHA, PHAL, PHAR
Lineage: AB plpppaapp, AB prpppaapp
Location: Right and left lumbar ganglia
Description: Phasmid neurons - ciliated, exposed to outside environment
Neurotransmitter/Neuropeptide:
- Glutamate
- NLP-7; neuropeptide-like protein
- NLP-14; neuropeptide-like protein
(Pereira et al., 2015; Nathoo et al., 2001)

Innexin expression:
- CHE-7
- INX-1a
- INX-2
- INX-7
- INX-10a
- INX-13
- INX-19 (NSY-5)
- UNC-7
- UNC-9
(Bhattacharya et al., 2019; Schumacher et al., 2012; Altun et al., 2009)
Receptor expression:
- GCY-12; guanylyl cyclase
- OCR-2; TRPV channel proteins
- OSM-9; TRPV channel protein
- NPR-1; neuropeptide Y receptor like protein
- PDFR-1; pigment dispersing factor (PDF-1) receptor
- SRG-13; G protein-coupled serpentine receptor
- SRB-6; G protein-coupled serpentine receptor
(Barrios et al., 2012; Coates and de Bono, 2002; Tobin et al., 2002; Colbert et al., 1997; Yu et al., 1997; Troemel et al., 1995)
Function:
- Modulate chemorepulsion behavior in worms (Hilliard et al., 2002)
- Part of the neuronal circuit that functions in mate-searching behavior of males (Barrios et al., 2012)
Reporters:
- At CGC: OH16065 otIs355 [rab-3p::2xNLS::TagRFP] IV. otIs747 [srg-13p::GFP]. PHA neurons are labeled with GFP and RFP
- Other: