Table 1: Examples of Markers for the C. elegans Excretory Canal Membrane System
Protein name	Subcellular localization	Function	Examples of available strains	References
ERM-1	apical domain	membrane–cytoskeleton linker	VJ402 (fgEx13[erm-1p::erm-1::gfp, rol-6p::rol-6(su1006)])	ref (13)
ACT-5	apical domain	apically localized actin	VJ268 (fgEx12[(act-5p::act-5::gfp); unc-119(+);unc-119(ed3)III])	ref (13)
ABTS-2	Basolateral	Anion/bicarbonate transporter	ABTS-2::GFP	ref (42)
SULP-8	Basolateral	Sulfatepermease	SULP-8::GFP	ref (42)
VHA-1	canalicular vesicles	V-ATPase	VJ535 (fgEx35(vha-1p::vha-1::gfp; rol-6p::rol-6(su1006)))	ref (9)
VHA-5	canalicular vesicles	V-ATPase	ML846 (vha-5(mc38) IV;mcEx337[vha-5(+)::GFP + rol-6(su1006)] )	ref (10)
AQP-8	canalicular vesicles	aquaporin, water channel	VJ533 (fgEx33(aqp-8p::aqp-8::gfp))	ref (9)
RAB-5	endosomal vesicles	trafficking	BK209 (qpIs99 (exc9p::mCherry::rab-5))	ref (36)
RAB-7	endosomal vesicles	trafficking	BK210 (qpIs100 [Pexc-9::mCherry::rab-7])	ref (36)
RAB-11	endosomal vesicles	trafficking	BK205 (qpIs97 (exc9p::mCherry::rab-11) )	ref (36)
1Examples are selected from resources listed in Table 3.