SAB

SABD, SABVL, SABVR

Type: Interneuron, (sublateral) motor neuron
Connectivity:
- In MoW: SAB
- In WormWiring: SABD_h, SABVL_h, SABVR_h
In Wormbase: SAB, SABD, SABVL, SABVR
Lineage: AB plppapaap, AB plppapaaaa,
AB prppapaaaa
Location: Head, retrovesicular ganglion
Description: SAB neurons send their processes anteriorly within the sublateral cords in the head. The processes leave the ventral cord via the amphid commissures to enter the sublateral cords on each side. SABV processes cross over to the opposite side before entering the amphid commissures (Durbin, 1987).
Neurotransmitter/ Neuropeptide:
- Acetylcholine
(Loer and Rand, 2022; Duerr et al., 2008; Rand and Nonet, 1997-Appendix 2)
Innexin expression:
- INX-1a
- INX-1b
- INX-2
- INX-8
- INX-10a
- INX-14
- UNC-7
- UNC-9
(Bhattacharya et al., 2019; Altun et al., 2009)
Receptor expression:
Function:
Reporters:
- At CGC: NC190 wdIs6 [del-1::GFP + dpy-20(+)]
- Other:

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SABD (AB plppapaap) development in the embryo. Dorsal view. Bottom is left side of the embryo. Spheres indicate individual nuclei. Black sphere: ancestors of SABD; dark grey spheres: apoptotic cells; other cells follow the WA color code (after they acquire specific cell or tissue identities). 0 min is fertilization. Click on the movie for higher resolution rendition (by A. Santella & Z. Bao).

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SABVL (plppapaaaa) development in the embryo. Dorsal view. Bottom is left side of the embryo. Spheres indicate individual nuclei. Black sphere: ancestors of SABVL (since last SABVL ancestor has not yet gone through its final division, the black sphere seen at the end of this movie is still AB plppapaaa); dark grey spheres: apoptotic cells; other cells follow the WA color code (after they acquire specific cell or tissue identities). 0 min is fertilization. Click on the movie for higher resolution rendition (by A. Santella & Z. Bao).

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SABVR (AB prppapaaaa) development in the embryo. Dorsal view. Bottom is left side of the embryo. Spheres indicate individual nuclei. Black sphere: ancestors of SABVR (since last SABVR ancestor has not yet gone through its final division, the black sphere seen at the end of this movie is still AB prppapaaa); dark grey spheres: apoptotic cells; other cells follow the WA color code (after they acquire specific cell or tissue identities). 0 min is fertilization. Click on the movie for higher resolution rendition (by A. Santella & Z. Bao).

Last Revision: July 26, 2025